WHITNEY HOLDING CORP
S-4/A, 1998-03-06
NATIONAL COMMERCIAL BANKS
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    As filed with the Securities and Exchange Commission on March 6, 1998
                              Registration No. 333-45513
- --------------------------------------------------------------------------------
    

                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

   
                                    FORM S-4/A
                               (Amendment No. 1)
                             REGISTRATION STATEMENT
                                      under
                           THE SECURITIES ACT OF 1933
    

                           WHITNEY HOLDING CORPORATION
             (Exact name of registrant as specified in its charter)

<TABLE>
<S>                                     <C>                                   <C>

            LOUISIANA                                 6711                        72-6017893
(State or other jurisdiction of         (Primary Standard Indus               (I.R.S. Employer
 incorporation or organization)          Classification Code Number)           Identification No.)
</TABLE>

                             228 St. Charles Avenue
                          New Orleans, Louisiana 70130
                                 (504) 586-7117
               (Address, including zip code, and telephone number,
        including area code, of Registrant's principal executive offices)
<TABLE>
<S>                                                      <C>                                   <C>

          Joseph S. Schwertz, Jr., Esq.                           Copies to:                              Copies to:
                     Secretary                            Patrick J. Butler, Jr., Esq.             Gerald F. Heupel, Jr., Esq.
             Whitney Holding Corporation                    Milling, Benson, Woodward,         Elias, Matz, Tiernan & Herrick L.L.P.
           228 St. Charles Ave. - Room 622               Hillyer, Pierson & Miller, L.L.P.       12th Floor, 734 15th Street, N.W.
               New Orleans, LA  70130                     909 Poydras Street, Suite 2300              Washington, D.C. 20005
                  (504) 586-3474                              New Orleans, LA 70112
       (Name, address, including zip code, and
telephone number, including area code, of agent for service)
</TABLE>
Approximate Date of Commencement of Proposed Sale of the Securities to the 
Public:
 Upon submission of the Plan of Merger described in this registration statement
         for the vote of shareholders of Meritrust Federal Savings Bank.

         If the  securities  being  registered on this Form are being offered in
connection  with the formation of a holding company and there is compliance with
General Instruction G, please check the following box. |_|

         If this Form is filed to register additional securities for an offering
pursuant to Rule 462(b) under the  Securities  Act,  check the following box and
list the Securities Act registration  statement number of the earlier  effective
registration statement for the same offering. |_| _________

         If this  Form is a  post-effective  amendment  filed  pursuant  to Rule
462(d) under the Securities Act, check the following box and list the Securities
Act  registration   statement  number  of  the  earlier  effective  registration
statement for the same offering. |_| _________

                                ---------------
   
    
    The  registrant  hereby amends this  Registration  Statement on such date or
dates as may be necessary to delay its effective date until the registrant shall
file a further  amendment  which  specifically  states  that  this  registration
statement shall  thereafter  become effective in accordance with Section 8(a) of
the Securities  Act of 1933 or until this  registration  statement  shall become
effective on such date as the Commission,  acting pursuant to said Section 8(a),
may determine.
- --------------------------------------------------------------------------------

<PAGE>

                           WHITNEY HOLDING CORPORATION
                              CROSS REFERENCE SHEET
<TABLE>
<CAPTION>
Item of Form S-4                                                      Location in Prospectus
- ----------------                                                      -----------------------
<S>   <C>                                                             <C>

A.    Information About the Transaction

      1.   Forepart of Registration Statement and                     Cover Page
           Outside Front Cover Page of Prospectus
      2.   Inside Front and Outside Back Cover Pages                  Inside Cover; Table of Contents
           of Prospectus
      3.   Risk Factors, Ratio of Earnings to Fixed                   Summary
           Charges and Other Information
      4.   Terms of the Transaction                                   Summary; The Plan of Merger
      5.   Pro Forma Financial Information                            *
      6.   Material Contacts with the Company Being                   The Plan of Merger - Background; The Plan
           Acquired                                                   of Merger - Reasons for the Plan of Merger;
                                                                      The Plan of Merger - Recommendation of the
                                                                      Bank's Board of Directors
      7.   Additional Information Required for                        *
           Reoffering by Persons and Parties Deemed
           to be Underwriters
      8.  Interests of Named  Experts and Counsel                     *
      9.  Disclosure of Commission Position on                        *
          Indemnification for Securities Act Liabilities

B.    Information About the Registrant

      10.  Information with Respect to S-3 Registrants                Inside Cover; Summary; Information about
                                                                      Whitney
      11.  Incorporation of Certain Information by                    Information about Whitney; Incorporation of
           Reference                                                  Certain Documents by Reference
      12.  Information with Respect to S-2 or S-3                     *
           Registrants
      13.  Incorporation of Certain Information by                    *
           Reference
      14.  Information  with  Respect  to  Registrants                *
           other  than S-3 or S-2 Registrants

C.    Information About the Company Being Acquired

      15.  Information with Respect to S-3 Companies                  *
      16.  Information  with  Respect to S-2 or S-3                   Information about the Bank
           Companies

</TABLE>
<PAGE>



                           WHITNEY HOLDING CORPORATION
                              CROSS REFERENCE SHEET
<TABLE>
<CAPTION>

<S>                                                                   <C>
Item of Form S-4                                                      Location in Prospectus
- ----------------                                                      ----------------------
      17.  Information with Respect to Companies                      *
           other than S-3 or S-2 Companies

D.    Voting and Management Information

      18.  Information if Proxies, Consents or
           Authorizations are to be Solicited

           (1)    Date, Time and Place Information                    The Meeting - General
           (2)    Revocability of Proxy                               The Meeting - Solicitation, Voting and
                                                                      Revocation of Proxies
           (3)    Dissenters' Rights of Appraisal                     Absence of Dissenters' Rights
           (4)    Persons Making the Solicitation                     The Meeting - General; The Meeting -
                                                                      Solicitation, Voting and Revocation of
                                                                      Proxies
           (5)    Interests of Certain Persons in                     Summary - Interests of Certain Persons; The
                  Matters to be Acted Upon; Voting                    Plan of Merger - Interests of Certain Persons;
                  Securities and Principal Holders                    Information About the Bank - Security
                  Thereof                                             Holdings of Principal Shareholders and
                                                                      Management
           (6)    Vote Required for Approval                          The Meeting - Shares Entitled to Vote;
                                                                      Quorum; Vote Required
           (7)    Directors and Executive Officers;                   Information About the Bank
                  Executive Compensation; Certain
                  Relationships and Related
                  Transactions

      19.  Information if Proxies, Consents or                        *
           Authorizations are not to be Solicited or in
           an Exchange Offer
<FN>
*Not applicable or answer is in the negative.
</FN>
</TABLE>

<PAGE>
                         MERITRUST FEDERAL SAVINGS BANK
                             200 West Second Street
                           Thibodaux, Louisiana 70302


   
                              March 10, 1998
    


Dear Shareholder:

   
         You are cordially  invited to attend a special  meeting of shareholders
(the "Meeting") of Meritrust Federal Savings Bank (the "Bank") to be held in the
main office of the Bank, 200 West Second Street, Thibodaux,  Louisiana 70302, on
Thursday, April 16, 1998 at 3:00 p.m., local time.
    

         At the Meeting, shareholders will be asked to approve the Agreement and
Plan of Merger  dated  November  20, 1997 between  Whitney  Holding  Corporation
("Whitney"),  Whitney  National Bank ("Whitney Bank") and the Bank and a related
merger agreement (collectively,  the "Plan of Merger").  Pursuant to the Plan of
Merger, the Bank will merge with and into Whitney Bank (the "Merger"),  and each
share of common stock of the Bank ("Bank Common  Stock") will be converted  into
the right to receive shares of common stock of Whitney  ("Whitney Common Stock")
and cash in lieu of any  fractional  share.  Whitney Bank will be the  surviving
entity in the Merger,  and shareholders of the Bank will become  shareholders of
Whitney.  It is a condition to the Merger that, among other things, the exchange
of Bank Common Stock solely for shares of Whitney  Common Stock will be tax free
to the Bank's shareholders for federal income tax purposes.

   
         Each share of Bank Common  Stock is expected to be  converted  into the
right to receive  between 1.352 shares and 1.587 shares of Whitney Common Stock,
depending upon the Average  Whitney Market Price (as defined) and other factors,
as described in the accompanying  Proxy  Statement-Prospectus.  If the effective
date of the  Merger had been  March 2,  1998,  each share of Bank  Common
Stock  would  have been  converted  into the right to  receive  1,352 shares of
Whitney  Common  Stock.  See "The Plan of Merger --  Description  of the Plan of
Merger   --   Conversion   of   Common   Stock"   in  the   accompanying   Proxy
Statement-Prospectus.
    

         The Merger has been approved by your Board of Directors,  and the Board
recommends that each shareholder vote FOR the Plan of Merger. The Board believes
that the  Merger  is in the  best  interests  of the Bank and its  shareholders.
Consummation of the Merger is subject to certain conditions,  including approval
of the Plan of Merger by the  Bank's  shareholders,  approval  of the  Merger by
various  regulatory  agencies,  and the  satisfaction or waiver of certain other
contractual conditions.

         The    accompanying    Notice   of    Special    Meeting    and   Proxy
Statement-Prospectus  contain information about the proposed merger. Please read
carefully these materials and the documents  incorporated  therein by reference,
copies of which are available as indicated under the caption  "Incorporation  of
Certain Documents by Reference."

         The Board of Directors  recommends that you vote FOR the Plan of Merger
and urges you to sign and date the enclosed  proxy and return it promptly in the
accompanying  envelope  in order to ensure  that your  vote is  represented.  Of
course,  if you attend the Meeting,  you nevertheless  may vote in person,  even
though you previously returned your proxy.

Sincerely,



Stephen R. Berthelot                         Lee J. Guarisco
President                                    Vice Chairman

<PAGE>



                         MERITRUST FEDERAL SAVINGS BANK
                             200 West Second Street
                           Thibodaux, Louisiana 70302
   
                    NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                       TO BE HELD THURSDAY, APRIL 16, 1998
    


To the Holders of Common Stock of Meritrust Federal Savings Bank:

   
         NOTICE IS HEREBY  GIVEN  that a Special  Meeting of  Shareholders  (the
"Meeting")  of Meritrust  Federal  Savings Bank (the "Bank") will be held at its
main office,  200 West Second Street,  Thibodaux, Louisiana 70302, on Thursday,
April 16, 1998 at 3:00 p.m., local time, for the following purposes:
    

         1.    To consider and vote upon a proposal to approve an Agreement and 
               Plan of Merger dated November 20, 1997, and a related merger 
               agreement, copies of which are attached as Appendix A to the
               accompanying Proxy Statement-Prospectus and are incorporated
               herein by reference (collectively, the "Plan of Merger"), 
               pursuant to which, among other things: (a) the Bank would merge 
               into Whitney National Bank ("Whitney Bank"), a wholly-owned bank
               subsidiary of Whitney Holding Corporation ("Whitney"), and (b)
               each outstanding share of common stock of the Bank would be
               converted into shares of Whitney common stock as determined in
               accordance with the terms of the Plan of Merger, all as more 
               fully described in the attached Proxy Statement-Prospectus.

         2.    To adjourn the Meeting, if necessary, to solicit additional 
               proxies.

         3.    To transact such other business as may properly  come before the
               Meeting or any adjournments or postponements thereof.

         Only  shareholders  of record at the close of business on February  19,
1998 are entitled to notice of and to vote at the Meeting or any  adjournment or
postponements thereof.

         Shareholders  are  cordially  invited to attend the  Meeting in person.
Whether or not you plan to attend the Meeting,  you are urged to complete,  date
and sign the enclosed proxy and to return it promptly.

                                 By order of the Board of Directors
                                  of Meritrust Federal Savings Bank



   
                                 Edward J. Patterson, Jr., Secretary
Thibodaux, Louisiana
March 10, 1998
    

- --------------------------------------------------------------------------------
                                I M P O R T A N T
IT IS IMPORTANT THAT YOUR SHARES BE REPRESENTED AT THE MEETING REGARDLESS OF THE
NUMBER THAT YOU HOLD. PLEASE PROMPTLY COMPLETE, SIGN AND MAIL THE ENCLOSED PROXY
IN THE ACCOMPANYING POST-PAID ENVELOPE,  WHETHER OR NOT YOU INTEND TO BE PRESENT
AT THE  MEETING.  YOU MAY REVOKE  YOUR  PROXY AT ANY TIME  BEFORE IT IS VOTED BY
GIVING WRITTEN NOTICE OF REVOCATION TO THE SECRETARY OF THE BANK OR BY EXECUTION
OF A PROXY OF A LATER DATE FILED WITH THE SECRETARY OF THE BANK AT OR BEFORE THE
MEETING.  IN ADDITION,  IF YOU ATTEND THE MEETING,  YOU MAY REVOKE YOUR PROXY BY
VOTING IN PERSON.
- --------------------------------------------------------------------------------

<PAGE>


                         MERITRUST FEDERAL SAVINGS BANK

   
               PROXY STATEMENT FOR SPECIAL MEETING OF SHAREHOLDERS
                    TO BE HELD THURSDAY, APRIL 16, 1998
    
                        --------------------------------

                           WHITNEY HOLDING CORPORATION
                        
                                   PROSPECTUS
                           Common Stock, No Par Value


   
         This Proxy Statement-Prospectus is being furnished to holders of common
stock,  par value $1.00 per share ("Bank Common  Stock"),  of Meritrust  Federal
Savings Bank (the "Bank") in connection with the  solicitation of proxies by the
Bank's Board of Directors for use at a Special  Meeting of  Shareholders  of the
Bank (the  "Meeting") to be held on Thursday,  April 16,  1998 at 3:00
p.m., local time, at the Bank's main office, 200 West Second Street,  Thibodaux,
Louisiana 70302, and at any adjournments or postponements  thereof.  The purpose
of the Meeting is to consider  and vote upon a proposal to approve an  Agreement
and Plan of Merger  dated  November  20, 1997,  and a related  merger  agreement
(collectively,  the "Plan of  Merger")  between the Bank,  on the one hand,  and
Whitney  Holding  Corporation  ("Whitney")  and Whitney  National Bank ("Whitney
Bank"),  on the other hand. The Plan of Merger provides for, among other things,
the merger of the Bank into Whitney Bank (the  "Merger").  Upon  consummation of
the Merger,  each outstanding  share of Bank Common Stock will be converted into
or exchanged  for shares of common  stock,  no par value,  of Whitney  ("Whitney
Common  Stock") in the  manner  described  herein,  with cash being paid for any
fractional share interests,  and any outstanding options to purchase Bank Common
Stock will be  converted  into options to purchase  Whitney  Common Stock in the
manner  described  herein.  See "The Plan of Merger - Description of the Plan of
Merger -- Conversion of Common Stock."  Consummation  of the Merger requires the
approval of the holders of at least two-thirds of the outstanding shares of Bank
Common Stock.  Consummation of the Merger is also subject to the satisfaction of
certain other conditions, including obtaining necessary regulatory approvals.

         Whitney has filed a Registration  Statement  pursuant to the Securities
Act of 1933, as amended (the "Securities Act"),  covering up to 1,338,120 shares
of Whitney  Common Stock that may be issued in  connection  with the Merger,  as
determined  on the basis of the pricing  formula  described  herein.  The actual
number of shares of Whitney  Common  Stock to be issued  will be  determined  in
accordance  with the  terms  of the Plan of  Merger.  See  "The  Plan of  Merger
Description  of  the  Plan  of  Merger  --  Conversion  of  Common  Stock."  The
outstanding shares of Whitney Common Stock are, and the shares of Whitney Common
Stock  offered  hereby will be,  included for  quotation on the Nasdaq  National
Market System (the "Nasdaq  National  Market").  The outstanding  shares of Bank
Common Stock are  included for  quotation  on the Nasdaq  SmallCap  Market.  The
closing price per share of Whitney Common Stock on the Nasdaq National Market on
March 2,  1998 was  $61.00,  and the closing price per share of Bank Common
Stock on the  Nasdaq  SmallCap  Market  on  March 2,  1998 was  $73.25.  On
November 20, 1997,  the last trading day before the Bank  announced  that it had
entered  into the Plan of Merger,  the  closing  price per share of Bank  Common
Stock on the Nasdaq SmallCap Market was $51.219.

         This Proxy Statement-Prospectus, and the accompanying Notice of Special
Meeting and form of proxy, are being first mailed to shareholders of the Bank on
or about March 10, 1998.
    

                           ---------------------------
           THE SECURITIES TO BE ISSUED IN CONNECTION WITH THE PROPOSED
               MERGER HAVE NOT BEEN APPROVED OR DISAPPROVED BY THE
           SECURITIES AND EXCHANGE COMMISSION OR ANY STATE SECURITIES
                 COMMISSION NOR HAS THE SECURITIES AND EXCHANGE
       COMMISSION OR ANY STATE SECURITIES COMMISSION PASSED UPON THE ACCU-
            RACY OR ADEQUACY OF THIS PROXY STATEMENT-PROSPECTUS. ANY
              REPRESENTATION TO THE CONTRARY IS A CRIMINAL OFFENSE.

    THESE SECURITIES ARE NOT SAVINGS OR DEPOSIT ACCOUNTS OR OTHER OBLIGATIONS
      OF ANY BANK OR NON-BANK SUBSIDIARY OF WHITNEY AND ARE NOT INSURED BY
          THE FEDERAL DEPOSIT INSURANCE CORPORATION, THE BANK INSURANCE
                     FUND OR ANY OTHER GOVERNMENTAL AGENCY.

                          ----------------------------

   
             This Proxy Statement-Prospectus is dated March 9, 1998.
    


<PAGE>

         No person has been  authorized to give any  information  or to make any
representation in connection with the solicitation of proxies or the offering of
securities  made hereby other than those  contained or incorporated by reference
in this Proxy  Statement-Prospectus,  and, if given or made, such information or
representation  must not be relied upon as having been  authorized by Whitney or
the Bank. This Proxy  Statement-Prospectus shall not constitute an offer to sell
or exchange or the  solicitation  of an offer to purchase any  security,  or the
solicitation  of a  proxy,  nor  shall  there  be any  such  sale,  exchange  or
solicitation  in any  jurisdiction  in which,  or to any  person to whom,  it is
unlawful to make such an offer,  solicitation of an offer or proxy solicitation.
Neither the delivery of this Proxy  Statement-Prospectus nor any distribution of
securities made hereunder shall, under any circumstances, create any implication
that  there has been no change in the  affairs  of Whitney or the Bank since the
date hereof.

         All  information  contained or  incorporated  by reference  herein with
respect to the Bank has been provided by the Bank, and Whitney is relying on the
accuracy of that  information.  All  information  contained or  incorporated  by
reference  herein with respect to Whitney has been provided by Whitney,  and the
Bank is relying on the accuracy of that information.

                              AVAILABLE INFORMATION

         Whitney and the Bank are subject to the  informational  requirements of
the  Securities  Exchange  Act of 1934 (the  "Exchange  Act") and in  accordance
therewith  file  reports,  proxy  statements  and  other  information  with  the
Securities and Exchange  Commission (the  "Commission") and the Office of Thrift
Supervision  ("OTS"),  respectively.  The reports,  proxy  statements  and other
information  filed by Whitney with the Commission can be inspected and copied at
the public reference  facilities  maintained by the Commission at Room 1024, 450
Fifth Street,  N.W.,  Washington,  D.C. 20549, and at the Commission's  Regional
Offices  at 7 World  Trade  Center,  13th  Floor,  New York,  New York 10048 and
Northwestern  Atrium  Center,  500 West  Madison  Street,  Suite 1400,  Chicago,
Illinois  60661.  Copies  of such  material  can be  obtained  from  the  Public
Reference Section of the Commission at 450 Fifth Street, N.W., Washington,  D.C.
20549 at prescribed  rates, and they are also available to the public at the web
site maintained by the Commission at  "http://www.sec.gov."  The reports,  proxy
statements and other information filed by the Bank with the OTS can be inspected
and  copied at the  public  reference  facilities  maintained  by the OTS at the
Office of Records  Management and  Information  Policy -  Dissemination  Branch,
Office of Thrift Supervision,  1700 G Street, N.W., Washington,  D.C. 20552, and
can also be obtained by written request from such office at prescribed rates. In
addition,  Whitney Common Stock is included for quotation on the Nasdaq National
Market  (Symbol:  WTNY),  and the Bank Common Stock is included for quotation on
the Nasdaq SmallCap Market (Symbol:  MERI).  Such reports,  proxy statements and
other  information  concerning  Whitney  and the  Bank can be  inspected  at the
offices of the National Association of Securities Dealers,  Inc., 1735 K Street,
N.W., Washington, D.C. 20006.

         Whitney has filed with the Commission a Registration  Statement on Form
S-4  ("Registration  Statement")  under the  Securities  Act with respect to the
Whitney  Common  Stock  offered by this Proxy  Statement-Prospectus.  This Proxy
Statement-Prospectus  does not contain all of the  information  set forth in the
Registration  Statement or the exhibits  thereto.  Statements  contained in this
Proxy  Statement-Prospectus  as to the contents of any documents are necessarily
summaries of the  documents,  and each statement is qualified in its entirety by
reference to the copy of the applicable document filed with the Commission.  For
further  information  with  respect to Whitney  and the  transactions  described
herein, reference is made to the Registration Statement,  including the exhibits
thereto and any documents incorporated by reference therein.

                       DOCUMENTS INCORPORATED BY REFERENCE

         The following documents previously filed with the Commission by Whitney
(File No.  0-1026)  pursuant to the Exchange Act are  incorporated  by reference
into this Proxy Statement-Prospectus:

         1.    Whitney's Annual Report on Form 10-K for the fiscal year ended 
               December 31, 1996;

         2.    Whitney's Quarterly Report on Form 10-Q for the fiscal quarter 
               ended March 31, 1997;

                                       ii


<PAGE>

         3.    Whitney's Quarterly Report on Form 10-Q for the fiscal quarter 
               ended June 30, 1997;

         4.    Whitney's Quarterly Report on Form 10-Q for the fiscal quarter 
               ended September 30, 1997; and

         5.    The description of Whitney common stock set forth in Whitney's
               registration  statement under the Exchange Act, as updated and
               modified in its entirety by Whitney's  Current  Report on Form
               8-K filed with the Commission on January 19, 1996.

         The following documents  previously filed with the OTS by the Bank (OTS
Docket No.  06866)  pursuant to the Exchange Act are  incorporated  by reference
into this Proxy Statement-Prospectus:

         1.    The Bank's  Annual  Report on Form  10-KSB for the fiscal year
               ended December 31, 1996 (including certain  information in the
               Bank's Proxy Statement dated March 25, 1997 used in connection
               with the  Bank's  1996  Annual  Meeting  of  Stockholders  and
               incorporated by reference into the Form 10-KSB);

         2.    The Bank's Quarterly Report on Form 10-QSB for the quarter ended
               March 31, 1997;

         3.    The Bank's Quarterly Report on Form 10-QSB for the quarter ended
               June 30, 1997;

         4.    The Bank's Quarterly Report on Form 10-QSB for the quarter ended
               September 30, 1997;

         5.    The Bank's Current Reports on Form 8-K filed with the OTS on 
               December 2, 1997 and January 30, 1998; and

         6.    The  following   portions  of  the  Bank's  Annual  Report  to
               Stockholders  for the fiscal  year ended  December  31,  1996:
               selected  consolidated  financial data (page 5);  management's
               discussion and analysis of financial  condition and results of
               operations  (pages 6 through  20);  and  audited  consolidated
               financial statements and notes thereto (pages 21 through 44).

         Accompanying  this Proxy  Statement-Prospectus  are the  Bank's  Annual
Report to  Stockholders  for the fiscal  year ended  December  31,  1996 and its
Quarterly Report on Form 10-QSB for the quarter ended September 30, 1997.

         All documents filed by Whitney  pursuant to Sections 13(a),  13(c), 14,
or 15(d) of the Exchange  Act after the date of this Proxy  Statement-Prospectus
and  prior to the date of the  Meeting  described  herein  shall be deemed to be
incorporated  by reference in this Proxy  Statement-Prospectus  and to be a part
hereof from the date of their filing.  Any statement  contained  herein,  in any
supplement hereto, or in a document incorporated or deemed to be incorporated by
reference  herein  shall be deemed to be modified  or  superseded  for  purposes
hereof to the extent that a statement  contained  herein,  or in any  supplement
hereto, or in any subsequently filed document which also is, or is deemed to be,
incorporated by reference herein modifies or supersedes such statement. Any such
statement  so modified or  superseded  shall not be deemed to  constitute a part
hereof, except as so modified or superseded.

   
         THIS PROXY STATEMENT-PROSPECTUS INCORPORATES DOCUMENTS BY REFERENCE 
THAT ARE NOT PRESENTED HEREIN OR DELIVERED HEREWITH.  THESE DOCUMENTS ARE
AVAILABLE UPON REQUEST, IF FILED BY WHITNEY, FROM EDWARD B. GRIMBALL, CHIEF
FINANCIAL OFFICER, WHITNEY HOLDING CORPORATION, 228 ST. CHARLES AVENUE, NEW
ORLEANS, LOUISIANA 70130 (TELEPHONE (504) 586-7252), AND, IF FILED BY THE BANK,
FROM MICHAEL D.TEMPLET, CHIEF FINANCIAL OFFICER, MERITRUST FEDERAL SAVINGS BANK,
200 WEST SECOND STREET, THIBODAUX, LOUISIANA 70302 (TELEPHONE (504) 446-5011). 
IN ORDER TO ENSURE TIMELY DELIVERY OF THE DOCUMENTS, ANY REQUEST SHOULD BE MADE 
BY APRIL 9, 1998. Whitney hereby undertakes to provide copies of
any such  documents,  other  than  exhibits  thereto  that are not  specifically
incorporated by reference therein,  without charge to each person, including any
beneficial  owner of Bank Common Stock, to whom this Proxy  Statement-Prospectus
is delivered, upon the written or oral request of such person to Whitney's Chief
Financial Officer at the address and telephone number written above.
    

                                       iii

<PAGE>

                                TABLE OF CONTENTS

   
SUMMARY.......................................................................vi
         Parties to the Merger................................................vi
                  Whitney  ...................................................vi
                  The Bank ...................................................vi
         The Meeting..........................................................vi
                  General  ...................................................vi
                  Purpose of the Meeting......................................vi
         Vote Required.......................................................vii
         Reasons for the Plan of Merger......................................vii
         Recommendation of the Bank's Board of Directors.....................vii
         Fairness Opinion of Friedman, Billings, Ramsey & Co., Inc...........vii
         The Plan of Merger..................................................vii
                  Conversion of Common Stock.................................vii
                  Exchange of Certificates....................................ix
                  Regulatory Approvals and Other Conditions to 
                    Consummation of the Merger................................ix
                  Waiver, Amendment and Termination............................x
         Accounting Treatment..................................................x
         Certain Federal Income Tax Consequences...............................x
         Absence of Dissenters' Rights.........................................x
         Interests of Certain Persons..........................................x
         Market Prices........................................................xi
         Comparative Rights of Shareholders...................................xi
         Liquidation Accounts.................................................xi
         Selected Financial Data of the Bank..................................xi
         Selected Financial Data of Whitney.................................xiii
         Comparative Per Share Data..........................................xiv
THE MEETING....................................................................1
         General  .............................................................1
         Purpose of the Meeting................................................1
         Shares Entitled to Vote; Quorum; Vote Required........................1
         Solicitation, Voting and Revocation of Proxies........................2
THE PLAN OF MERGER.............................................................2
         General  .............................................................2
         Background............................................................2
         Reasons for the Plan of Merger........................................3
                  General  ....................................................3
                  Whitney  ....................................................3
                  The Bank ....................................................4
         Recommendation of the Bank's Board of Directors.......................4
         Fairness Opinion of Friedman, Billings, Ramsey & Co., Inc.............4
         Description of the Plan of Merger.....................................8
                  Conversion of Common Stock...................................8
                  Exchange of Certificates.....................................9
                  Transfer and Exchange Agents................................10
                  Regulatory Approvals and Other Conditions of the Merger.....10
                  Effective Date..............................................10
                  Conduct of Business Prior to the Effective Date.............10
                  Waiver, Amendment and Termination...........................11
                  Expenses ...................................................12
         Interests of Certain Persons.........................................12
                  Employment Status...........................................12
                  
    

                                       iv


<PAGE>

   
                  Employee Benefits...........................................12
                  Management..................................................13
                  Change in Control Agreements................................13
                  Bank Options................................................13
                  Advisory Board..............................................15
                  Indemnification and Insurance...............................15
         Status Under Federal Securities Laws; Certain Restrictions 
            on Resales .......................................................15
         Accounting Treatment.................................................16
         Pro Forma Data.......................................................16
ABSENCE OF DISSENTERS' RIGHTS.................................................16
CERTAIN FEDERAL INCOME TAX CONSEQUENCES.......................................16
ADJOURNMENT OF SPECIAL MEETING, IF NECESSARY..................................17
INFORMATION ABOUT THE BANK....................................................18
         General  ............................................................18
         Market Prices of and Dividends Declared on Bank Common Stock.........18
         Security Holdings of Principal Shareholders and Management...........19
INFORMATION ABOUT WHITNEY.....................................................20
         General  ............................................................20
         Recent Developments..................................................20
         Market Prices of and Dividends Declared on Whitney Common Stock .....21
COMPARATIVE RIGHTS OF SHAREHOLDERS............................................21
         Description of Whitney Common Stock..................................21
         Comparison of Whitney Common Stock and Bank Common Stock.............26
                  Boards of Directors.........................................26
                  Removal of Directors........................................26
                  Issuance of Shares to Directors, Officers or 
                    Controlling Shareholders..................................26
                  Nomination of Directors.....................................27
                  Preferred Stock.............................................27
                  Special Meetings of Shareholders............................27
                  Business Conducted at Annual Meetings of Shareholders.......27
                  Amendment to Charter and Bylaws.............................27
                  Supermajority Vote Requirements.............................28
                  Indemnification Rights......................................28
                  Liquidation Accounts........................................28
LEGAL MATTERS.................................................................29
EXPERTS.......................................................................29
SHAREHOLDER PROPOSALS.........................................................29
OTHER MATTERS.................................................................29
         Appendix A - Agreement and Plan of Merger...........................A-1
         Appendix B - Fairness Opinion of Friedman, Billings, Ramsey & 
           Co., Inc..........................................................B-1
    

                                        v

<PAGE>

                                     SUMMARY

          The following  summary is not intended to be complete and is qualified
in its entirety by the more detailed information appearing elsewhere herein, the
appendices hereto and the documents incorporated herein by reference.
Shareholders are urged to read carefully all such material.

Parties to the Merger

   
         Whitney.   Whitney  Holding   Corporation,   a  Louisiana   corporation
("Whitney"),  is a bank holding company registered  pursuant to the Bank Holding
Company Act of 1956.  Whitney  became an  operating  entity in 1962 with Whitney
National Bank ("Whitney Bank") as its only significant subsidiary. Whitney Bank,
a national banking association  headquartered in Orleans Parish,  Louisiana, has
been engaged in the general banking business in southern Louisiana since 1883.
It currently conducts its general banking  business  through  approximately  100
banking  offices  in south  Louisiana,  southern  Mississippi  and  Alabama  and
northwestern  Florida.  Whitney  Bank also  maintains a foreign  branch on Grand
Cayman in the British West Indies.
    

         Whitney and its subsidiaries are sometimes referred to collectively
herein as "Whitney's consolidated group." At September 30, 1997, Whitney had
consolidated assets of approximately $4.2 billion and total consolidated 
deposits of approximately $3.3 billion. Whitney's principal executive offices 
are at 228 St. Charles Avenue, New Orleans, Louisiana 70130, and its telephone
number is (504) 586-7117.  See "Information About Whitney."

         The Bank.  Meritrust  Federal  Savings Bank (the "Bank") is a federally
chartered, stock savings bank headquartered in Thibodaux,  Louisiana. The Bank's
business consists  primarily of attracting  deposits from the general public and
using those and other available sources of funds to originate consumer loans and
loans secured by single-family residences located primarily in Thibodaux, Houma,
Luling,  Raceland,  Vacherie  and  Galliano,  Louisiana  and in St. Mary Parish,
Louisiana.  At September 30, 1997, the Bank had total assets of $233.3  million,
deposits of $210.4 million and total stockholders' equity of $19.3 million.

         The Bank's principal  executive  offices are at 200 West Second Street,
Thibodaux,  Louisiana  70302,  and its telephone  number is (504) 446-5011.  See
"Information About the Bank."

The Meeting

   
         General.  A  special  meeting  of the  shareholders  of the  Bank  (the
"Meeting")  will be held on  April 16,  1998 at the time and  place  set
forth in the accompanying Notice of Special Meeting of Shareholders. Only record
holders  of the common  stock,  $1.00 par value per  share,  of the Bank  ("Bank
Common  Stock") at the close of business on  February  19, 1998 are  entitled to
notice of and to vote at the Meeting. On that date, there were 774,176 shares of
Bank Common Stock issued and outstanding,  each of which is entitled to one vote
on each matter properly to come before the Meeting.
    

         Purpose of the  Meeting.  The  purpose of the Meeting is to vote upon a
proposal to approve an Agreement and Plan of Merger dated November 20, 1997, and
a related merger agreement (collectively, the "Plan of Merger"), copies of which
are attached  hereto as Appendix A, pursuant to which,  among other things,  the
Bank will merge into Whitney Bank (the  "Merger") and  shareholders  of the Bank
will receive  shares of Whitney  common  stock,  no par value  ("Whitney  Common
Stock"), and cash in lieu of fractional shares, as described below under " - The
Plan of Merger -- Conversion of Common Stock." See "The Meeting - Purpose of the
Meeting."  Shareholders  will also be asked to approve a proposal to adjourn the
Meeting  if  necessary  to  solicit  additional  proxies in favor of the Plan of
Merger  in  order  for the  Plan of  Merger  to be  approved  and  adopted  (the
"Adjournment  Proposal").  Approval of the  Adjournment  Proposal will allow the
Bank's Board of Directors to adjourn the meeting in order to solicit  additional
proxies if necessary to meet the two-thirds vote  requirement.  See "Adjournment
of Special Meeting, if Necessary."

                                       vi

<PAGE>

Vote Required

          The Plan of Merger must be approved by the affirmative vote of holders
of at least two-thirds of the outstanding shares of Bank Common Stock. Directors
and executive  officers of the Bank holding an aggregate of 176,616  shares,  or
approximately 22.8%, of the outstanding shares of Bank Common Stock have agreed,
subject to  certain  conditions,  to vote  their  shares in favor of the Plan of
Merger at the Meeting.  It is also  anticipated that the directors and executive
officers  of the Bank will vote for the  proposal  to  adjourn  the  Meeting  if
necessary to solicit  additional  proxies.  Whitney,  as the sole shareholder of
Whitney Bank, must approve the Plan of Merger. Under Louisiana law, shareholders
of Whitney are not  required to approve the Plan of Merger.  See "The  Meeting -
Shares Entitled to Vote; Quorum; Vote Required."

Reasons for the Plan of Merger

         The Board of  Directors of the Bank  believes  that the approval of the
Plan of Merger is in the best  interests  of the Bank and its  shareholders.  In
reaching its decision,  the Board considered a number of factors,  including the
Bank's and  Whitney's  business and  prospects,  the price to be received by the
Bank's  shareholders,  the liquidity of Whitney  Common Stock and the opinion of
Friedman,  Billings, Ramsey & Co., Inc. that the consideration to be received by
the Bank's  shareholders  is fair, from a financial point of view. See "The Plan
of  Merger -  Background"  and "The  Plan of  Merger -  Reasons  for the Plan of
Merger."

Recommendation of the Bank's Board of Directors

         THE BOARD OF DIRECTORS OF THE BANK HAS UNANIMOUSLY APPROVED THE PLAN OF
MERGER AND  RECOMMENDS  THAT ITS  SHAREHOLDERS  VOTE FOR APPROVAL OF THE PLAN OF
MERGER.  SEE  "THE  PLAN OF  MERGER  -  RECOMMENDATION  OF THE  BANK'S  BOARD OF
DIRECTORS."

Fairness Opinion of Friedman, Billings, Ramsey & Co., Inc.

         Friedman,  Billings, Ramsey & Co., Inc. has rendered its opinion to the
Bank's Board of Directors that,  based on and subject to the  assumptions  made,
the factors  considered,  the review undertaken and the limitations  stated, the
consideration to be received by the Bank's shareholders under the Plan of Merger
is fair to the Bank's  shareholders  from a financial  point of view.  Friedman,
Billings,  Ramsey & Co.,  Inc.'s opinion is directed only to the fairness of the
terms  of the  Plan of  Merger  from a  financial  point  of view  and  does not
constitute a  recommendation  to any  shareholder on how to vote at the Meeting.
See "The Plan of Merger -- Fairness Opinion of Friedman, Billings, Ramsey & Co.,
Inc."

   
         A copy of the  fairness  opinion of Friedman,  Billings,  Ramsey & Co.,
Inc. dated March 9, 1998 is attached as Appendix B and should be read in
its entirety.
    

The Plan of Merger

   
         Conversion  of Common  Stock.  Pursuant  to the Plan of Merger,  if all
conditions to the Merger are satisfied or waived,  on the effective  date of the
Merger,  the Bank will be merged with and into  Whitney  Bank,  and the separate
existence  of the Bank will cease.  By reason of the Merger,  and subject to the
adjustments described below, each outstanding share of Bank Common Stock will be
converted  into a number of shares of Whitney  Common Stock that is equal to (a)
if the Average  Whitney Market Price (defined below) is greater than or equal to
$46.00 and less than or equal to $54.00,  the  quotient  (rounded to the nearest
thousandth) determined by dividing (i) $73.00 by (ii) the Average Whitney Market
Price,  (b) if the  Average  Whitney  Market  Price is less than  $46.00,  1.587
shares,  (c) if the Average  Whitney Market Price is greater than $54.00,  1.352
shares, or (d) notwithstanding any of the foregoing,  if, prior to the effective
date of the Merger, (x) Whitney  issues  a  press  release  announcing  that it
is negotiating or has executed a letter of intent or definitive  merger or other
acquisition  agreement  as a  result  of  which  Whitney  will  cease  to  be an
independent, publicly traded company and (y) Whitney has not thereafter issued a
press release announcing the termination of such negotiations,  letter of intent
or definitive agreement prior to the closing of the transactions contemplated by
the Plan of Merger,  1.352 shares.  The number of shares of Whitney Common Stock
into which one
    

                                       vii


<PAGE>

share of Bank Common Stock would be converted by reason of the merger pursuant
to the foregoing provisions is referred to as the "Exchange Ratio."

   
         The Plan of  Merger  defines  "Average  Whitney  Market  Price"  as the
average  of the  closing  per share  trading  prices  of  Whitney  Common  Stock
(adjusted  appropriately for any stock split, stock dividend,  recapitalization,
reclassification or similar transaction which is effected, or for which a record
date occurs) on the 20 trading days preceding the fifth trading day  immediately
prior to the  effective  date of the  Merger,  as  reported  in the Wall  Street
Journal (corrected for typographical errors), and such period of 20 trading days
is referred to as the "Pricing Period."

         The Bank may  terminate  the Plan of Merger by giving notice to Whitney
at any time during the five-day period  following the Pricing Period if both (a)
the Average  Whitney  Market  Price is less than $40.00 and (b) (i) the quotient
obtained by dividing  the Average  Whitney  Market  Price by $50.00 is less than
(ii) the result  obtained  by  subtracting  0.15 from the  quotient  obtained by
dividing  the  average  of the Index  Prices  (hereinafter  defined)  during the
Pricing  Period by the Index Price on November 24, 1997 (the  "Starting  Date").
The "Index Price" for a particular  date is the weighted  average of the closing
sales  prices on such date  of an index of  bank holding companies  specified in
the Plan of Merger. That index is adjustable in accordance with the terms of the
Plan of Merger, and  as adjusted as of  the date hereof,  the Index Price on the
Starting  Date  was $36.26. If the  Bank  gives  Whitney notice of its intent to
terminate  the Plan  of  Merger  pursuant to  the conditions  described  in this
paragraph,  Whitney  may  determine, in  its sole discretion, to  eliminate  the
Bank's right to terminate the Plan of Merger by increasing the Exchange Ratio to
equal  the quotient  (rounded to the  nearest thousandth)  obtained  by dividing
$63.48 by the Average Whitney Market Price.

         Conversely,  Whitney may  terminate the Plan of Merger by giving notice
to the Bank at any time during the five-day period  following the Pricing Period
if: (a) the Average  Whitney  Market Price is greater  than $60.00,  (b) (i) the
quotient  obtained by dividing  the Average  Whitney  Market  Price by $50.00 is
greater than (ii) the result obtained by adding 0.15 to the quotient obtained by
dividing  the  average of  the Index  Prices  during  the Pricing  Period by the
Index  Price on the Starting Date (currently $36.26), and (c) none of the events
described in clause (d) of the first paragraph under this subheading  shall have
occurred and be  continuing.  If Whitney gives the Bank notice of its intent to
terminate the Plan of Merger  pursuant to the conditions set forth in the
preceding sentence, the Bank may determine, in its sole discretion, to eliminate
Whitney's right to terminate the Plan of Merger by decreasing the Exchange Ratio
to equal the quotient (rounded to the nearest thousandth) determined by dividing
$81.12 by the Average Whitney Market Price.

         On  March 2, 1998,  the  closing  trading  price for a share of Whitney
Common Stock was $61.00,  and if such  date had  been the  effective date of the
Merger, the  Average  Whitney  Market  Price  would have  been  $54.725  and the
Exchange Ratio would have been 1.352.  Based on such  closing trading price, the
market value of  1.352 shares of Whitney  Common  Stock on that date  would have
been  $82.47.  There can  be no  assurance  as to  the  market  value of Whitney
Common Stock on the effective date of the Merger.
    

         Inasmuch as the  consideration to be paid by Whitney in the Merger will
be based on the "Average Whitney Market Price" as defined in the Plan of Merger,
the  actual  value on the  effective  date of the  Merger  of the  shares  to be
received by holders of Bank Common  Stock in the Merger may be more or less than
the Average  Whitney  Market Price of those shares as  calculated  in accordance
with the Plan of Merger.

         In lieu of issuing any fractional  share of Whitney Common Stock,  each
Bank  shareholder  who would  otherwise be entitled  thereto will receive a cash
payment  (without  interest)  equal to such fractional  share  multiplied by the
Average Whitney Market Price.

         The Plan of  Merger  also  provides  that  each  outstanding  option to
purchase  shares of Bank Common Stock (the "Bank Options")  granted  pursuant to
the Bank's 1993 Key  Employee  Stock  Compensation  Program and 1993  Directors'
Stock  Option  Plan  (the  "Bank  Option  Plans")  that are  outstanding  at the
effective time of the Merger, whether or not exercisable, will be converted into
and become a right to purchase shares of Whitney Common Stock in accordance with
the terms of the Bank Option Plans and the option  agreements by which such Bank
Options  are  evidenced,  except that from and after the  effective  time of the
Merger,  (a) the number of shares of Whitney  Common Stock  subject to each
                                      viii

<PAGE>

Bank Option will equal the number of shares of Bank Common Stock subject to such
Bank Options  prior  to  the effective  time of the Merger,  multiplied  by  the
Exchange Ratio (with fractional shares rounded down to the nearest share) and 
(b) the exercise price per share of Whitney Common Stock purchasable  thereunder
will be the exercise price  specified in the  applicable  Bank Option divided by
the Exchange Ratio (rounded up to the nearest cent).

         See "The Plan of Merger -  Description  of the Plan of Merger" and "The
Plan of  Merger -  Description  of the Plan of Merger  --  Conversion  of Common
Stock."

         For  information  regarding  restrictions  on the  transfer  of Whitney
Common Stock  received  pursuant to the Plan of Merger  applicable to certain of
the Bank's  shareholders,  see "Status Under Federal  Securities  Laws;  Certain
Restrictions on Resales."

         Exchange of Certificates.  Upon consummation of the Merger, a letter of
transmittal,  together  with  instructions  for  the  exchange  of  certificates
representing shares of Bank Common Stock for certificates representing shares of
Whitney  Common Stock,  will be mailed to each person who was a  shareholder  of
record  of the  Bank on the  effective  date  of the  Merger.  Shareholders  are
requested  not to send in their stock  certificates  until they have  received a
letter of transmittal and further written instructions.

         Shareholders of the Bank who cannot locate their stock certificates are
urged to contact promptly:

                   Michael D. Templet, Chief Financial Officer
                         Meritrust Federal Savings Bank
                             200 West Second Street
                           Thibodaux, Louisiana 70302
                                 (504) 446-5011

A new stock certificate will be issued to replace the lost  certificate(s)  only
upon  execution  by  the  shareholder  of  an  affidavit   certifying  that  his
certificate(s)  cannot be located and  containing  an agreement to indemnify the
Bank and Whitney  against any claim that may be made against the Bank or Whitney
by the owner of the certificate(s)  alleged to have been lost or destroyed.  The
Bank or Whitney may also require the  shareholder  to post a bond in such sum as
is sufficient to support the  shareholder's  agreement to indemnify the Bank and
Whitney.  See "The Plan of Merger  Description of the Plan of Merger -- Exchange
of Certificates."

         Regulatory  Approvals  and  Other  Conditions  to  Consummation  of the
Merger. In addition to approval by the shareholders of the Bank, consummation of
the Merger is conditioned upon, among other things, (i) the accuracy on the date
of  closing of the  representations  and  warranties,  and the  compliance  with
covenants,  made in the Plan of Merger by each  party,  and the  absence  of any
material  adverse  change in the financial  condition,  results of operations or
business of the other party's  consolidated  group, (ii) the receipt of required
regulatory approvals, (iii) the receipt by Whitney of assurances that the Merger
may be accounted for as a pooling-of-interests,  (iv) the receipt by Whitney and
the  Bank of  opinions  as to the  qualification  of the  Merger  as a  tax-free
reorganization  under  applicable  law, (v) the Bank's  receipt of a letter from
Friedman,  Billings, Ramsey & Co., Inc., dated as of the date of the Meeting, in
form and substance  satisfactory to the Bank, confirming its fairness opinion to
the Board of Directors of the Bank, and (vi) certain other conditions  customary
for agreements of this sort. The parties intend to consummate the Merger as soon
as  practicable  after  all of the  conditions  to the  Merger  have been met or
waived.

   
          On  February 4, 1998,  Whitney filed an application with the Office of
of the Comptroller  of the  Currency  of the  United  States (the "Comptroller")
seeking approval of the Merger.  The application was acknowledged on February 9,
1998.  By letter dated  February 25, 1998, the  Comptroller  indicated  that its
Washington, D.C. Bank Organization and Structure Division is conducting a review
of the  competitive analysis  relating to  the Merger and  that the  anticipated
decision date  on the application  is  April 5, 1998. There can  be no assurance
that final  approval  of this application  will be  obtained, or that  the other
conditions to consummation  of the  Merger will be satisfied by  the date of the
Meeting or at all. See "The Plan of Merger - Description of the Plan of Merger 
- -- Regulatory  Approvals and Other Conditions of the Merger."
    

       
                                       ix


<PAGE>
            Waiver, Amendment and  Termination. The Plan of Merger provides that
each of the parties to the Plan of Merger may waive any of the conditions to its
obligation to consummate the Merger other than approval by the  shareholders  of
the Bank,  the  absence  of a stop order  suspending  the  effectiveness  of the
Registration  Statement of which this Proxy  Statement-Prospectus  forms a part,
the receipt of all necessary regulatory approvals, the satisfaction of all 
requirements  prescribed by law for  consummation of the Merger,  and the Bank's
receipt of a letter from Friedman,  Billings, Ramsey & Co., Inc. dated as
of the date of the  Meeting,  in form and  substance  satisfactory  to the Bank,
confirming  Friedman,  Billings,  Ramsey & Co., Inc.'s  fairness  opinion to the
Board of Directors of the Bank.

         The Plan of  Merger  may be  amended,  at any time  before or after its
approval by the  shareholders of the Bank, by the mutual  agreement of the Board
of Directors of the parties to the Plan of Merger.

         In  addition  to their  rights to  terminate  the Plan of Merger  under
certain circumstances if the Average Whitney Market Price is less than $40.00 or
more than $60.00 (as described  above under the heading " - Conversion of Common
Stock"),  the parties  have rights to  terminate  the Plan of Merger at any time
prior to the effective  date of the Merger (i) by the mutual  consent of Whitney
and the Bank;  (ii) in the  event of a  material  breach of any  representation,
warranty  or  covenant in the Plan of Merger that cannot be cured by the earlier
of 15 days after written notice of such breach or August 31, 1998;  (iii) if the
Merger  has not  occurred  by  August  31,  1998;  (iv) if the  Bank's  Board of
Directors  withdraws  its  recommendation  of the Merger or  recommends  another
acquisition  transaction;  (v) if the Bank receives a written offer with respect
to  another  acquisition  transaction  and the  Board of  Directors  of the Bank
determines in good faith,  after  consultation  with its financial  advisers and
counsel, that such transaction is more favorable to the Bank's shareholders than
the  transactions  contemplated  by the Plan of Merger;  or (vi) on the basis of
certain  other  grounds  specified  in the Plan of  Merger.  The Plan of  Merger
provides for a termination  fee of $3,000,000  payable to Whitney if the Plan of
Merger is terminated under the circumstances  described in clause (iv) or clause
(v) of the preceding sentence. See "The Plan of Merger - Description of the Plan
of Merger -- Waiver, Amendment and Termination."

Accounting Treatment

         Whitney  intends to account  for the Merger as a  pooling-of-interests,
and it is a condition to Whitney's  obligation to consummate the Merger that (i)
it receive certain  assurances from the Bank's  independent  public  accountants
that the Merger may be accounted for as a pooling-of-interests  and (ii) neither
Whitney's  independent  public  accountants  nor  the  Securities  and  Exchange
Commission shall have taken the position that the  transactions  contemplated by
the Plan of Merger do not qualify for pooling-of-interests accounting treatment.
See "The Plan of Merger - Accounting Treatment."

Certain Federal Income Tax Consequences

         Consummation  of the Merger is conditioned  upon receipt by Whitney and
the Bank of an opinion from Arthur Andersen LLP to the effect that,  among other
things,  the Merger will qualify as a tax-free  reorganization  under applicable
law and that each Bank shareholder who receives Whitney Common Stock pursuant to
the Merger will not recognize gain or loss except with respect to the receipt of
cash in lieu of  fractional  shares of  Whitney  Common  Stock.  Because  of the
complexity  of the tax laws,  each  shareholder  should  consult his tax advisor
concerning the applicable  federal,  state and local income tax  consequences of
the Merger. See "Certain Federal Income Tax Consequences."

Absence of Dissenters' Rights

         A Bank shareholder who objects to the Merger does not have "dissenters'
rights" and,  therefore,  does not have the right to dissent from the Merger and
have paid to him in cash by  Whitney  the fair cash  value of his shares of Bank
Common Stock. See "Absence of Dissenters' Rights."

Interests of Certain Persons

         The  executive  officers  and members of the Board of  Directors of the
Bank have  interests  in the Merger that are in addition to their  interests  as
shareholders of the Bank. These interests include, among others,  payments to be

                                        x

<PAGE>

received  by  executive   officers   pursuant  to  the  Bank's  incentive  bonus
arrangements  and other agreements with the Bank; the acceleration of vesting of
Bank Options  held by  directors  and  executive  officers  pursuant to the Bank
Option  Plans;  the continued  employment  of the executive  officers by Whitney
after  the effective date; the continuation of certain employee benefits 
generally;  and provisions in the Plan of Merger relating to indemnification  of
directors  and  officers  of the Bank and  continuation  of directors and 
officers liability insurance.

         See "The Plan of Merger - Interests of Certain Persons."

Market Prices

   
         On November 20,  1997,  the last  trading day  preceding  the date that
Whitney and the Bank publicly  announced  that they had entered into the Plan of
Merger,  the closing sales price for a share of Whitney Common Stock,  as quoted
on the Nasdaq National Market,  was $50.50.  No assurance can be given as to the
market price of Whitney  Common Stock on the  effective  date of the Merger.  On
March 2, 1998, the closing sales price for a share of Whitney Common Stock was 
$61.00,  and if such date had been the effective date of the Merger, the Average
Whitney Market Price would have been approximately  $54.725 and the Exchange 
Ratio would have been 1.352.  Based on such closing trading price, the market 
value of 1.352 shares of Whitney  Common Stock on that date would have been 
$82.47. There can be no assurance as to the market value of Whitney Common Stock
on the effective date of the Merger.

         The closing  sales price for a share of Bank Common Stock on the Nasdaq
SmallCap Market was $51.219 on November 20, 1997. On March 2,  1998, the closing
sale price for a share of Bank  Common  Stock  was  $73.25.  No assurance can be
given as to the market  price of the Bank Common  Stock on the effective date of
the  Merger.  See "Information  About the Bank - Market  Prices of and Dividends
Declared on Bank Common Stock."
    

Comparative Rights of Shareholders

         If the Merger is consummated,  all shareholders of the Bank will become
shareholders of Whitney,  and their rights will be governed by and be subject to
Whitney's  Articles of  Incorporation  and Bylaws rather than those of the Bank.
Whitney's  Articles of Incorporation  contain provisions that are different from
those of the Bank,  some of which may have the  effect of  discouraging  a third
party from seeking to obtain control of Whitney in a transaction not approved by
Whitney's Board of Directors. See "Comparative Rights of Shareholders."

   
Liquidation Accounts

          In connection with the conversions from the mutual to the stock form 
of ownership of its predecessor companies, the Bank was required to establish
"liquidation accounts" for the benefit of certain depositors at the time of such
conversions.  The liquidation accounts grant such depositors who have continued
to maintain their savings accounts at the Bank the right to a priority 
distribution from the liquidation accounts before any distribution can be made
with respect to the Bank Common Stock in the event of a complete liquidation of
the Bank (and only in such event). The Merger does not constitute a complete
liquidation and will not trigger a distribution from the liquidation accounts.
Upon consummation of the Merger, the liquidation accounts will be maintained by
Whitney Bank.  See "Comparative Rights of Shareholders - Comparison of Whitney
Common Stock and Bank Common Stock -- Liquidation Accounts."
    

Selected Financial Data of the Bank

         The selected  financial data presented below for, and as of the end of,
each of the years in the  five-year  period ended  December 31, 1996 are derived
from  consolidated  financial  statements  of the Bank and  subsidiaries,  which
financial  statements  have been audited by KPMG Peat  Marwick LLP,  independent
certified public  accountants.  The selected  financial data for the nine months
ended  September  30, 1997 and 1996 have been derived from the Bank's  unaudited
consolidated  financial  statements,   which,  in  the  opinion  of  the  Bank's
management,  reflect  all  adjustments  (consisting  only  of  normal  recurring
accruals)  that  are  necessary  for a  fair  presentation  of  the  results  of
operations for the interim periods presented.  The results of operations for the
nine-month period ended September 30, 1997 are not necessarily indicative of the
results to be expected for the entire year. The audited  consolidated  financial
statements 
                                       xi

<PAGE>
as of December  31, 1996 and 1995,  and for each of the years in the three year
year period ended  December 31, 1996, and the report  thereon,  as well as the
unaudited consolidated financial statements as of September 30, 1997 and for the
three and nine months ended September 30, 1997 and 1996, are incorporated by
reference elsewhere in this Proxy Statement-Prospectus.


<TABLE>
<CAPTION>
                                          Nine months ended
                                              September 30                           Years ended December 31,
                                          ---------------------     ---------------------------------------------------------
                                             1997        1996         1996        1995         1994         1993       1992
                                          ----------  ---------     ---------   ---------    ---------    --------   --------
                                                    (In thousands, except per share data, unaudited)
<S>                                         <C>        <C>          <C>         <C>         <C>          <C>        <C>

   
Balance Sheet Data:
   Total assets........................     $233,311   $230,713     $226,591    $220,855    $215,462     $222,434   $231,945
   Total earning assets................      223,160    220,715      216,257     210,192     204,663      211,336    221,207
   Total loans.........................      121,856    115,106      116,479     110,236     104,333      110,844    125,748
   Total investment in securities......       91,886     98,544       94,749      92,573      97,225       81,206     68,667
   Interest-bearing deposits...........      203,577    203,511      199,707     196,314     194,044      202,644    217,754
   Noninterest-bearing deposits........        6,839      6,496        6,438       5,662       4,515        4,704      4,564
   Shareholders' equity................       19,270     16,774       17,525      16,440      14,659       12,923      6,838

Income Statement Data:
   Total interest income...............      $12,526    $12,128      $16,283     $15,241     $14,154      $15,040    $17,467
   Net interest income.................        5,877      5,403        7,254       6,957       6,856        6,974      6,695
   Provision for possible loan losses..          120         90          120           0           0          132        (95)
   Non-interest income.................        1,290      1,185        1,589       1,309       1,281        1,383      1,502
   Non-interest expense................        4,983      5,815        7,461       6,079       6,072        6,286      6,387
   Income before extraordinary item
     and cumulative effect of change in
     accounting for income taxes.......        2,064        683        1,262       2,187       2,065        1,939      1,905
   Extraordinary item - tax benefit of
     net operating loss carryforward...            0          0            0           0           0            0        553
   Income before cumulative effect of
     change in accounting for income
     taxes.............................        2,064        683        1,262       2,187       2,065        1,939      2,458
   Cumulative effect of change in
     accounting for income taxes.......            0          0            0           0           0         (284)         0
   Net income..........................        2,064        683        1,262       2,187       2,065        1,655      2,458

Per Share Data:
   Primary earnings per share..........        $2.67      $0.88        $1.63       $2.82       $2.67        $2.14      $3.17
   Fully diluted earnings per share....         2.53       0.84         1.56        2.73        2.60          n/a        n/a
   Cash dividends per share............         0.53       0.45         0.63        0.53        0.43         0.19       0.34
   Fully diluted book value per share,
     end of period.....................        23.64      20.72        21.65       20.51       18.49        16.69        n/a

Key Ratios:
   Net income as a percent of
     average assets....................         0.90%      0.30%        0.56%       1.00%       0.94%        0.73%      1.04%
   Net income as a percent of
     average equity....................        11.14%      3.98%        7.43%      14.06%      14.97%       16.75%     42.26%
   Allowance for loan losses as
     a percent of loans and leases
     at period end.....................         0.51%      0.59%        0.56%       0.58%       0.69%        0.75%      0.65%
   Average equity as a percent
     of average total assets...........         8.08%      7.57%        7.59%       7.13%       6.30%        4.35%      2.46%
   Dividend payout ratio...............        19.66%     51.14%       38.34%      18.58%      15.93%        8.99%      3.79%
</TABLE>
    

                                       xii


<PAGE>

Selected Financial Data of Whitney

         The  following  selected  financial  data with  respect  to each of the
fiscal  years  in the  five-year  period  ended  December  31,  1996 and for the
nine-month  periods ended September 30, 1997 and 1996 have been derived from the
consolidated  financial statements of Whitney's consolidated group and should be
read in  conjunction  with  the  information  concerning  Whitney  that has been
incorporated  by  reference  in this Proxy  Statement-Prospectus.  The  selected
financial  data for the nine months ended  September 30, 1997 and 1996 have been
derived from Whitney's unaudited financial statements,  which, in the opinion of
Whitney's  management,  reflect all  adjustments  that are  necessary for a fair
presentation of the results of operations for the interim periods presented. The
results of operations for the nine-month period ended September 30, 1997 are not
necessarily indicative of the results to be expected for the entire year.
<TABLE>
<CAPTION>

                                          Nine months ended
                                            September 30,                          Years ended December 31,
                                    ---------------------------  --------------------------------------------------------------
                                         1997         1996         1996        1995          1994           1993         1992
                                    ------------- ------------- ----------- ----------- ------------- -------------   ----------
                                                                  (In thousands, except per share data, unaudited)
<S>                                   <C>         <C>          <C>          <C>          <C>          <C>          <C>            
Average Balance Sheet Data:
   Total assets...................    $4,166,029  $3,962,177   $3,576,681   $3,292,574   $3,263,890   $3,194,181   $3,134,850
   Total earning assets...........     3,791,433   3,590,908    3,252,217    2,975,057    2,950,064    2,885,083    2,825,865
   Total loans....................     2,349,510   1,914,706    1,778,074    1,379,587    1,151,750    1,106,631    1,274,674
   Total investment in securities.     1,404,002   1,625,152    1,446,923    1,535,826    1,716,532    1,648,913    1,372,064
   Interest bearing deposits......     2,305,013   2,275,589    1,953,054    1,892,768    1,918,547    1,896,111    1,877,137
   Noninterest bearing deposits...       941,243     901,198      842,168      827,348      806,914      793,408      783,582
   Shareholders' equity...........       454,081     420,012      388,855      348,960      306,566      247,663      200,785

Income Statement Data:
   Total interest income..........      $216,808    $200,711     $241,706     $221,660     $198,753     $191,550     $200,757
   Net interest income............       136,693     125,204      151,811      145,719      139,234      134,828      125,457
   Reduction in reserve (provision)
      for possible loan losses....         2,812        (375)       5,000        9,380       25,869       59,295       (4,640)
   Gains on sale of securities....             -          16           11            3           46          112        5,601
   Non-interest income............        37,826      31,144       37,311       33,966       34,964       34,143       30,292
   Non-interest expense...........      (118,704)   (108,179)    (134,394)    (122,680)    (115,661)    (111,475)    (123,837)
    Income before income tax and
      effect of accounting changes        58,627      47,810       59,739       66,388       84,452      116,903       32,873
    Income tax expense............        20,036      15,115       19,118       20,855       26,862       37,321        9,969
   Income before effect of
      accounting changes, net.....        38,591      32,695       40,621       45,533       57,590       79,582       22,904
   Cumulative effect of accounting
      changes, net................             -           -            -            -            -          345            -
   Net income.....................        38,591      32,695       40,621       45,533       57,590       79,927       22,904

Per Share Data:
   Primary earnings per share.....         $1.85       $1.59         2.26         2.57         3.32         4.67         1.35
   Fully diluted earnings per
     share........................          1.85        1.59         2.26         2.56         3.32         4.67         1.35
   Cash dividends per share.......          0.84        0.72         0.97         0.82         0.64         0.43         0.07
   Book value per share, end of
     period.......................         22.38       20.96        22.53        21.28        18.89        16.83        12.34

Key Ratios:
   Net income as a percent of
     average assets...............          1.24%       1.10%        1.14%        1.38%        1.76%        2.50%        0.73%
   Net income as a percent of
     average equity...............         11.36%      10.37%       10.45%       13.05%       18.78%       33.35%       11.85%
   Net interest margin............          4.94%       4.77%        4.81%        5.03%        4.86%        4.79%        4.55%
   Allowance for loan losses as
     a percent of loans and leases
     at period end................          1.69%       2.28%        1.90%        2.40%        3.00%        4.10%        8.50%
   Average equity as a percent
     of average total assets......         10.90%      10.60%       10.87%       10.60%        9.39%        7.50%        6.35%
   Equity as a percent of total
     assets at period end.........         11.12%      10.66%       10.72%       10.70%       10.21%        8.72%        6.47%
   Dividend payout ratio..........         44.29%      37.63%       41.75%       28.63%       17.61%        8.58%        6.40%
</TABLE>

                                      xiii


<PAGE>


Comparative Per Share Data

         The following  table presents  certain  information for Whitney and the
Bank on an  historical,  unaudited  pro forma  combined and  unaudited pro forma
equivalent basis. The unaudited pro forma combined information is based upon the
historical  financial  condition  and results of operations of the companies and
adjustments  directly  attributable  to the Plan of  Merger  based on  estimates
derived from information currently available.  This information does not purport
to be  indicative  of the results that would  actually have been obtained if the
Merger had been  consummated on the date or for the periods  indicated below, or
the results that may be obtained in the future.  Whitney  expects to account for
the Merger using the  pooling-of-interests  method  applied in  accordance  with
generally accepted accounting principles.
<TABLE>
<CAPTION>
                                                   Historical                 Pro Forma           Bank
                                             Whitney          Bank            Combined(1)      Equivalent(2)
                                             ----------------------           -----------      -------------
Earnings per common share:
<S>                                           <C>             <C>               <C>                <C>
Years ended:
    December 31, 1996.................        $2.26           $1.56             $2.19              $2.19
    December 31, 1995.................        $2.57           $2.73             $2.54              $2.54
    December 31, 1994.................        $3.32           $2.60             $3.23              $3.23
Nine months ended September 30, 1997          $1.85           $2.53             $1.85              $1.85

Dividends declared per common share:

Years ended:
    December 31, 1996.................        $0.97           $0.63             $0.91              $0.91
    December 31, 1995.................        $0.82           $0.53             $0.71              $0.71
    December 31, 1994.................        $0.64           $0.43             $0.57              $0.57
Nine months ended September 30, 1997          $0.84           $0.53             $0.78              $0.78

Book value per common share:

As of September 30, 1997..............       $22.38          $23.64            $22.14             $22.14
As of December 31, 1996...............       $22.53          $21.65            $22.15             $22.15
</TABLE>

- ------------------------------

(1)      Assumes an  Exchange  Ratio of 1.460 to 1 (based on an assumed  Average
         Whitney  Market Price of $50.00),  no exercise of Bank Options prior to
         the Merger,  and the  issuance of  1,130,296  shares of Whitney  Common
         Stock to effect the Merger.

(2)      The Bank  Equivalent is calculated by multiplying the amount in the pro
         forma  combined  column by an  exchange  ratio of 1.460 at the  assumed
         Average Whitney Market Price of $50.00.

         In  addition  to  the  proposed  Merger,  Whitney  has  another  merger
transaction  pending.  See  "Information  About Whitney - Recent  Developments."
There can be no assurance that such transaction will be completed.

                                       xiv


<PAGE>

                                   THE MEETING


General

         This  Proxy   Statement-Prospectus  is  furnished  to  shareholders  of
Meritrust  Federal Savings Bank (the "Bank") in connection with the solicitation
of proxies on behalf of its Board of Directors  for use at a special  meeting of
shareholders  of the Bank (the "Meeting") to be held on the date and at the time
and  place  specified  in  the   accompanying   Notice  of  Special  Meeting  of
Shareholders, or any adjournments or postponements thereof.

         The Bank has supplied all  information  included herein with respect to
the Bank. Whitney Holding  Corporation  ("Whitney") has supplied all information
included herein with respect to Whitney and its consolidated subsidiaries, which
are sometimes collectively referred to herein as "Whitney's consolidated group."

Purpose of the Meeting

         The purpose of the  Meeting is to consider  and vote upon a proposal to
approve an Agreement and Plan of Merger dated November 20, 1997, between Whitney
and its wholly-owned  banking subsidiary Whitney National Bank ("Whitney Bank"),
on the one hand, and the Bank, on the other hand,  and the related  Agreement of
Merger  between  Whitney  Bank and the Bank (the "Bank  Merger  Agreement"  and,
together with the Agreement and Plan of Merger, the "Plan of Merger").  Pursuant
to the Plan of Merger, the Bank will merge into Whitney Bank (the "Merger").  In
consideration of the Merger,  each outstanding share of common stock,  $1.00 par
value,  of the Bank ("Bank  Common  Stock") will be  converted  into a number of
shares of common stock,  no par value,  of Whitney  ("Whitney  Common Stock") as
described  elsewhere  in  this  Proxy  Statement-Prospectus  under  the  heading
captioned  "The Plan of Merger - Description of the Plan of Merger -- Conversion
of Common  Stock." If it becomes  necessary  to adjourn  the Meeting in order to
solicit additional proxies in favor of the Plan of Merger so that the two-thirds
vote  requirement  can be satisfied,  the Bank's  shareholders  will be asked to
approve  the   Adjournment   Proposal  (as  defined   elsewhere  in  this  Proxy
Statement-Prospectus). See "Adjournment of Special Meeting, if Necessary."

Shares Entitled to Vote; Quorum; Vote Required

         Only holders of record of Bank Common Stock at the close of business on
February 19, 1998 are entitled to notice of and to vote at the Meeting.  On that
date there were 774,176 shares of Bank Common Stock  outstanding,  each of which
is each entitled to one vote on each matter properly brought before the Meeting.

         With  respect  to  consideration  of the Plan of  Merger  and any other
matter properly brought before Meeting,  the presence at the Meeting,  in person
or by proxy,  of the  holders of a majority  of the  outstanding  shares of Bank
Common  Stock is necessary  to  constitute a quorum.  The Plan of Merger must be
approved by the  affirmative  vote of the holders of at least  two-thirds of the
outstanding  shares of Bank Common Stock.  Abstentions and broker non-votes will
have the effect of votes against the Plan of Merger.  Broker  non-votes  will be
counted for  purposes of  determining  the presence of a quorum for the Meeting.
The Adjournment  Proposal requires the affirmative vote of holders of a majority
of the outstanding shares of Bank Common Stock represented in person or by proxy
at the  Meeting,  assuming a quorum is present.  Abstentions  will have the same
effect as a vote against the Adjournment  Proposal,  while broker non-votes will
have no effect on the outcome of the Adjournment Proposal.

         Directors  and  executive  officers of the Bank holding an aggregate of
176,616 shares,  or  approximately  22.8% of the outstanding  Bank Common Stock,
have  agreed,  subject  to certain  conditions,  to vote in favor of the Plan of
Merger at the Meeting.  It is also  anticipated that the directors and executive
officers  of the Bank will vote in favor of the  Adjournment  Proposal,  if that
proposal is submitted to the shareholders for consideration and approval.

         Louisiana law does not require that shareholders of Whitney approve the
Plan of Merger.  Whitney,  as the sole shareholder of Whitney Bank, must approve
the Plan of Merger.

                                        1

<PAGE>

Solicitation, Voting and Revocation of Proxies

         A form  of  proxy  for  use  at  the  Meeting  accompanies  this  Proxy
Statement-Prospectus  and will permit each holder of record of Bank Common Stock
on the record  date for the  Meeting  to vote the shares  held by him as of such
date at the Meeting.  A shareholder may use a proxy whether or not he intends to
attend the Meeting in person.  Duly executed  proxies will authorize the persons
named therein to vote on all other matters that properly come before the Meeting
or any adjournments or postponements  thereof. Where a shareholder specifies his
choice on the proxy with  respect to the  proposal to approve the Plan of Merger
and the Adjournment Proposal,  the shares represented by the proxy will be voted
in accordance with such  specification.  If no such  specification  is made, the
shares  will be  voted  in  favor  of the  Plan of  Merger  and in  favor of the
Adjournment  Proposal.  A proxy may be revoked by (i) giving  written  notice of
revocation at any time before its exercise to the Secretary of the Bank, or (ii)
executing  and  delivering  to the  Secretary  at any time before its exercise a
later dated proxy. In addition,  shareholders  who attend the Meeting may revoke
their proxies by voting in person.

         In addition to  soliciting  proxies by mail,  directors,  officers  and
employees of the Bank, without receiving additional  compensation  therefor, may
solicit proxies by telephone and in person.  Arrangements will also be made with
brokerage  firms and other  custodians,  nominees  and  fiduciaries  to  forward
solicitation  materials to the beneficial owners of shares of Bank Common Stock,
and the Bank will reimburse such parties for reasonable  out-of-pocket  expenses
incurred  in  connection  therewith.  The Bank  will pay the cost of  soliciting
proxies.

                               THE PLAN OF MERGER

General

         The transactions  contemplated by the Plan of Merger are to be effected
in  accordance  with the terms and  conditions  set forth in the Plan of Merger,
which is incorporated herein by reference.  The following brief description does
not purport to be complete  and is qualified in its entirety by reference to the
Plan of Merger, a copy of which is attached hereto as Appendix A.

         The ultimate  result of the  transactions  contemplated  by the Plan of
Merger will be that the business,  properties, debts and liabilities of the Bank
will become the business, properties, debts and liabilities of Whitney Bank, and
the  shareholders of the Bank will become  shareholders  of Whitney.  To achieve
this result, the Bank will merge into Whitney Bank and the separate existence of
the  Bank  will  cease,  and  shareholders  of  the  Bank  (and  holders  of any
outstanding options to acquire Bank Common Stock) will receive the consideration
described  below under the  heading  captioned  " -  Description  of the Plan of
Merger -- Conversion of Common Stock."

Background

         From  time to time the Bank has  received  preliminary  inquiries  from
other  financial  institutions or their holding  companies  regarding a possible
acquisition  of the Bank.  From March  through June 1996,  Messrs.  Guarisco and
Berthelot  had several  meetings  with  representatives  of Friedman,  Billings,
Ramsey & Co., Inc.  ("FBR") and another  investment  banking firm to discuss the
Bank's strategic  options.  In July 1996, FBR met with the Board of Directors of
the Bank to present and discuss an analysis of the following  strategic options:
business as usual, growth through acquisition, and merger with another financial
institution.  After due  consideration  of the Bank's options and past financial
performance, the Board of Directors adopted the "business as usual" option.

         In July 1997, as part of the Board's and management's ongoing fiduciary
duties  to  monitor  merger  and  acquisition  possibilities,  the Bank  noticed
increased  acquisition  activity.  Argent  Bank  announced  its  acquisition  by
Hibernia  Bancorp,   and  shortly  thereafter  Magna  BankCorp  of  Hattiesburg,
Mississippi  announced its  acquisition by Union Planters Bank Corp. of Memphis,
Tennessee.  Within a month,  Acadia Bank in Thibodaux,  Louisiana entered into a
merger agreement with Union Planters.  The Bank's management  discussed with the
management of Magna BankCorp their reasons for selling.

                                        2

<PAGE>


         The Bank  received a number of  inquiries  from  interested  parties in
August 1997 concerning a possible  acquisition of the Bank. In early  September,
Mr.  Guarisco  attended  a  two-day  seminar  sponsored  by FBR.  At the  Bank's
September Board of Directors' meeting,  the Board authorized  management to hire
FBR to further  review all of the Bank's  strategic  alternatives.  During  this
time,  Whitney  made several  contacts  with Mr.  Guarisco to express  Whitney's
interest in pursuing a transaction with the Bank.

         In October 1997, FBR sent confidentiality agreements to three potential
acquirors (including Whitney), which agreements were signed on October 16, 1997.
FBR then provided each prospective acquiror a package of confidential  materials
giving  an  overview  of the Bank.  Each of the  potential  acquirors  expressed
interest in acquiring  the Bank.  Whitney's  preliminary  price  indication  was
substantially  better than the other two, and on November 6, 1997,  the Board of
Directors of the Bank  authorized  management to negotiate on an exclusive basis
with Whitney the possible acquisition of the Bank.

         The Bank  received the initial draft of the Plan of Merger from Whitney
on  November  10,  1997.  FBR met with the  Board  of  Directors  of the Bank on
November 13, 1997 and gave a detailed  presentation of the proposed terms of the
transaction,  the exchange  ratio,  and  comparable  transactions.  The Board of
Directors  instructed   management  to  continue  with  the  negotiations  of  a
definitive acquisition  agreement.  Over the following week, with the assistance
of its legal  counsel  and  investment  banker,  the Bank  reviewed  and revised
several  drafts of the Plan of  Merger.  The  terms of the Plan of  Merger  were
reviewed in detail and actively negotiated.

         On November 20, 1997,  the Board of Directors of the Bank  reviewed the
proposed definitive Plan of Merger in detail. After consideration of all factors
deemed relevant and in conjunction  with the receipt of a fairness  opinion from
FBR and advice from counsel, the Board of Directors determined that the proposed
Merger was in the Bank's best  interests  and the best  interests  of the Bank's
shareholders.  All  directors  of the Bank  present at the meeting (2 of 13 were
absent)  unanimously  approved the Plan of Merger. The parties executed the Plan
of Merger on  November  20,  1997 and  publicly  announced  the  Merger the next
morning.

         On December 11, 1997, Whitney delivered to the Bank the notice required
under the Plan of Merger that Whitney had  completed  its initial due  diligence
examination of the Bank, and subject to satisfaction of the other  conditions to
closing, Whitney intended to proceed to closing.

Reasons for the Plan of Merger

         General.  The  financial  and other terms of the Plan of Merger are the
result of arm's-length  negotiations between  representatives of Whitney and the
Bank.   Determination  of  the  consideration  to  be  received  by  the  Bank's
shareholders  was based upon many factors  considered by the Boards of Directors
of  Whitney  and  the  Bank,  including  the  comparative  financial  condition,
historical  results of  operations,  current  business  and future  prospects of
Whitney and the Bank, the market price and historical  earnings per share of the
common stock of Whitney and the Bank,  and the  desirability  of  combining  the
financial and  managerial  resources of Whitney and the Bank to pursue  consumer
and commercial banking business in the markets currently served by the Bank.

         Whitney.  Whitney's  business strategy  includes  expansion through the
Gulf Coast region,  including the development of a significant  banking presence
in the Acadiana  region of Louisiana.  Whitney's  management  has identified the
Bank as an institution that  complements this strategy.  The Bank's nine banking
facilities  located in several  southern  Louisiana  communities  would  enhance
Whitney's presence in Terrebonne and St. Mary Parishes,  and would result in the
expansion of Whitney's  branch  structure  into  Lafourche,  St. Charles and St.
James Parishes.

         In deciding to pursue an acquisition of the Bank,  Whitney's management
and the Executive  Committee of Whitney's Board of Directors noted,  among other
things:  (i) the Bank's deposit base and branch network in southeast  Louisiana;
(ii) the Bank's headquarters in Thibodaux,  Louisiana, an economic center in the
Acadiana region of Louisiana;  (iii) the Bank's stable,  experienced  management
team and staff; and (iv) the Bank's capitalization and strong asset quality.

                                        3

<PAGE>


         Whitney believes that other opportunities for expansion in the Acadiana
region of Louisiana,  such as de-novo branching,  would be less desirable than a
merger  with the Bank  because  the Bank's  size and  location  will  further an
important  element  of  Whitney's   geographic  expansion  strategy  while  also
providing an  established  base from which Whitney can build on what it believes
to be the strength of the Whitney name throughout southern Louisiana.

         The Bank. The terms of the Plan of Merger, including the Exchange Ratio
(hereinafter  defined under " - Description  of the Plan of Merger -- Conversion
of Common  Stock"),  were the result of  arm's-length  negotiations  between the
representatives  of the Bank and Whitney.  Among the factors  considered  by the
Board of Directors of the Bank in deciding to approve and recommend the terms of
the Merger were (i) the value of the Whitney  Common Stock to be  exchanged  for
each share of Bank Common  Stock in relation  to the market  value,  book value,
earnings per share and dividend rates of the Bank Common Stock, (ii) information
concerning the financial condition, results of operations, capital levels, asset
quality and prospects of the Bank, (iii) industry and economic conditions,  (iv)
the general  structure of the  transaction,  (v) the likelihood of receiving the
requisite  regulatory  approvals  in a timely  manner,  (vi) the  opinion of the
Bank's  financial  advisor  as to the  fairness  of the  Exchange  Ratio  from a
financial  point of view to the  holders  of the Bank  Common  Stock,  (vii) the
impact of the Merger on the  depositors,  employees,  customers and  communities
served by the Bank through expanded consumer lending and retail banking products
and  services,  and (viii) the ability of the combined  enterprise to compete in
relevant banking and non-banking markets.

         The  discussion of the  information  and factors  considered  and given
weight by the Board of Directors  of the Bank is not intended to be  exhaustive.
In view of the variety of factors considered in connection with their evaluation
of the Plan of Merger,  the Board did not quantify or otherwise  assign relative
weights to the specific  factors  considered in reaching its  determination.  In
addition,  individual  members of the Board may have given different  weights to
different factors.

Recommendation of the Bank's Board of Directors

         THE BOARD OF DIRECTORS OF THE BANK HAS UNANIMOUSLY APPROVED THE PLAN OF
MERGER AND UNANIMOUSLY RECOMMENDS THAT THE BANK'S SHAREHOLDERS VOTE FOR
APPROVAL OF THE PLAN OF MERGER.

Fairness Opinion of Friedman, Billings, Ramsey & Co., Inc.

         Pursuant to a letter agreement dated as of September 30, 1997 (the "FBR
Agreement"),  FBR was  retained by the Bank to act as its  financial  advisor in
connection  with the  Merger.  At the meeting of the Bank Board held on November
20, 1997, FBR delivered its written opinion to the Bank Board to the effect that
as of such  date,  the  Exchange  Ratio  (as  defined  elsewhere  in this  Proxy
Statement-Prospectus  under the heading " - Description of the Plan of Merger --
Conversion of Common  Stock") was fair,  from a financial  point of view, to the
holders of the Bank Common  Stock.  FBR has  reconfirmed  its  November 20, 1997
opinion by delivery  of its  written  opinion  (the "FBR  Opinion")  to the Bank
Board, dated the date of this Proxy Statement-Prospectus, stating that as of the
date hereof,  based on the matters set forth in such opinion and pursuant to the
Plan of Merger,  the  Exchange  Ratio is fair to such  holders  from a financial
point of view.

         THE FULL TEXT OF THE FBR  OPINION,  WHICH  SETS  FORTH THE  ASSUMPTIONS
MADE,  PROCEDURES  FOLLOWED,   MATTERS  CONSIDERED  AND  LIMITS  ON  THE  REVIEW
UNDERTAKEN, IS ATTACHED AS APPENDIX B TO THIS PROXY  STATEMENT-PROSPECTUS AND IS
INCORPORATED  HEREIN BY REFERENCE.  THE DESCRIPTION OF THE FBR OPINION SET FORTH
HEREIN IS  QUALIFIED  IN ITS  ENTIRETY  BY  REFERENCE  TO APPENDIX B. THE BANK'S
SHAREHOLDERS ARE URGED TO READ THE FBR OPINION IN ITS ENTIRETY. FBR'S OPINION IS
ADDRESSED  ONLY TO THE  BANK'S  BOARD  OF  DIRECTORS  AND  DIRECTED  ONLY TO THE
EXCHANGE RATIO TO BE RECEIVED IN THE MERGER BY THE HOLDERS OF BANK COMMON STOCK,
AND DOES NOT  CONSTITUTE  A  RECOMMENDATION  TO ANY  SHAREHOLDER  AS TO HOW SUCH
SHAREHOLDER SHOULD VOTE AT THE MEETING.


                                        4

<PAGE>


         FBR is a nationally recognized investment banking firm and was selected
by the Bank based on the firm's reputation and experience in investment  banking
in general,  its recognized expertise in the valuation of banking businesses and
because of its familiarity with the Bank. FBR, as part of its investment banking
business,  is  frequently  engaged  in the  valuation  of  businesses  and their
securities   in   connection   with   mergers   and   acquisitions,   negotiated
underwritings,  competitive  biddings,  secondary  distributions  of listed  and
unlisted  securities,  private placements and valuations for corporate and other
purposes.

         In connection  with  rendering the opinions dated November 20, 1997 and
the date hereof,  FBR, among other things: (i) reviewed the Plan of Merger; (ii)
reviewed the Annual Report to Stockholders of the Bank for the fiscal year ended
December  31, 1996 and Annual  Report of the Bank on Form 10-KSB  filed with the
Office of Thrift  Supervision (the "OTS") for the fiscal year ended December 31,
1996, as well as Quarterly Reports of the Bank on Form 10-QSB filed with the OTS
for the three month  periods  ended March 31, 1997,  June 30, 1997 and September
30, 1997;  (iii) reviewed the Annual Report to  Stockholders  of Whitney for the
fiscal year ended  December 31, 1996 and Annual  Reports of Whitney on Form 10-K
filed with the Securities and Exchange  Commission  (the  "Commission")  for the
fiscal years ended December 31, 1994 through 1996, as well as Quarterly  Reports
of Whitney on Form 10-Q filed with the  Commission  for the three month  periods
ended March 31, 1997,  June 30, 1997 and September  30, 1997;  (iv) reviewed the
Bank's unaudited financial statements for the ten months ended October 31, 1997;
(v) reviewed the reported market prices and trading  activity for Whitney Common
Stock for the period  January  1994  through  November 19, 1997 and reviewed the
reported market prices and trading activity for Bank Common Stock for the period
January 1994 through November 19, 1997; (vi) discussed the financial  condition,
results of  operations,  business and prospects of the Bank and Whitney with the
managements  of the Bank and Whitney;  (vii)  compared the results of operations
and  financial  condition  of  the  Bank  and  Whitney  with  those  of  certain
publicly-traded  financial  institutions  (or their holding  companies) that FBR
deemed to be reasonably  comparable to the Bank or Whitney,  as the case may be;
(viii)  reviewed the  financial  terms,  to the extent  publicly  available,  of
certain acquisition  transactions that FBR deemed to be reasonably comparable to
the Merger; (ix) reviewed the financial terms, to the extent publicly available,
of certain acquisition  transactions previously entered into by Whitney; and (x)
performed such other  analyses and reviewed and analyzed such other  information
as FBR deemed appropriate.

         In connection with rendering the FBR Opinion,  as set forth herein, FBR
assumed and relied  upon,  without  independent  verification,  the accuracy and
completeness of all the financial  information,  analyses and other  information
reviewed by and discussed with it, and did not make an independent evaluation or
appraisal  of  the  specific  assets,  the  collateral  securing  assets  or the
liabilities of Whitney, the Bank or any of their respective subsidiaries, or the
collectibility of any such assets (relying,  where relevant, on the analyses and
estimates of Whitney and the Bank).  With respect to the  financial  projections
reviewed with each company's management,  FBR assumed that they reflect the best
currently available estimates and judgments of the respective managements of the
respective future financial  performances of each of Whitney and the Bank and of
the combined  company,  and that such  performances  will be achieved.  FBR also
assumed  that  there has been no  material  change in  Whitney's  or the  Bank's
assets, financial condition, results of operations,  business or prospects since
the date of the last  financial  statements  noted above.  Finally,  FBR assumed
without independent  verification that the aggregate consolidated allowances for
loan losses for the Bank and Whitney  were  adequate to cover such  losses,  and
that the conditions precedent in the Plan of Merger are not waived.

         The  forecasts  and  projections  furnished  to FBR for the  Bank  were
prepared by the management of the Bank. As a matter of policy, the Bank does not
publicly disclose internal management forecasts, projections or estimates of the
type  furnished to FBR in connection  with its analysis of the Merger,  and such
forecasts,  projections  and  estimates  were not  prepared  with a view towards
public  disclosure.  These  forecasts,  projections  and estimates were based on
numerous variables and assumptions which are inherently  uncertain and which may
not be within the control of management including,  without limitation,  general
economic,  regulatory and competitive  conditions.  Accordingly,  actual results
could vary materially  from those set forth in such  forecasts,  projections and
estimates.

         The Bank  Board  imposed  no  limitations  on FBR with  respect  to the
investigation  made or procedures  followed by FBR in rendering the FBR Opinion.
In  connection  with  rendering  such  fairness  opinion to the Bank Board,  FBR
performed a variety of  financial  analyses.  The  following is a summary of the
material  financial  analyses  performed  by FBR,  but does not  purport to be a
complete description of FBR's analyses or presentation at the November 13, 1997

                                        5

<PAGE>


and November 20, 1997 meetings of the Bank Board. FBR believes that its analyses
must be considered as a whole and that  selecting  portions of such analyses and
the factors considered  therein,  without  considering all factors and analyses,
could create an incomplete view of the analyses and the processes underlying the
FBR  Opinion.  The  preparation  of a  fairness  opinion  is a  complex  process
involving  subjective  judgments and is not  necessarily  susceptible to partial
analyses or summary description.  In its analyses, FBR made numerous assumptions
with  respect to industry  performance,  business and  economic  conditions  and
various  other  matters,  many of which are beyond  the  control of the Bank and
Whitney.   Any  estimates  contained  in  FBR's  analyses  are  not  necessarily
indicative of future results or values,  which may be significantly more or less
favorable than such  estimates.  Estimates of values of companies do not purport
to be  appraisals  or  necessarily  reflect the prices at which the companies or
their securities may actually be sold.

         Summary of Terms of Proposed Transaction. FBR reviewed the terms of the
proposed Merger,  including the Exchange Ratio, the form of  consideration,  and
the  percentage of premium to the Bank's market price at November 19, 1997.  The
Bank's  shareholders  will  receive a  floating  exchange  ratio if  during  the
specified  20-day  measurement  period,  the Average  Whitney  Market  Price (as
defined  elsewhere  in this  Proxy  Statement-Prospectus  under the  heading  "-
Description  of the Plan of Merger --  Conversion  of Common  Stock") is between
$54.00 and $46.00 per share,  which would  result in a $73.00 per share value to
the Bank's  shareholders  based on an Average  Whitney  Market Price within that
range.  If the Average  Whitney  Market Price rises above $54.00 per share,  the
Exchange  Ratio will become  fixed at 1.352  Whitney  shares for each Bank share
held; in addition,  if the Average  Whitney  Market Price drops below $46.00 per
share,  the Bank's  shareholders  will receive a fixed  Exchange  Ratio of 1.587
Whitney shares for each Bank share held.  Based on the price per share of $50.50
for Whitney  Common  Stock (the  closing  price for such stock on  November  19,
1997),  the amount of consideration on November 20, 1997 was $73.00 per share of
Bank Common Stock (the "Fixed Price").  As of November 19, 1997, the Fixed Price
represented  a 42.53%  premium  to the then  current  market  price per share of
$51.22 for Bank Common Stock (the  closing  price for such stock on November 19,
1997).

         Based on the closing share price of Whitney Common Stock as of November
19,  1997,  the Fixed  Price  represented  a  multiple  of (i) 22.87x the Bank's
earnings per share for the twelve months ended  September 30, 1997;  (ii) 21.73x
the Institutional Brokers Estimate System, Inc. analysts' estimate of the Bank's
1997  earnings  per share;  (iii)  3.14x the  Bank's  book value per share as of
September 30, 1997;  and (iv) 3.14x the Bank's  tangible book value per share as
of September 30, 1997. The Fixed Price also  represented a tangible book premium
to core deposits of 19.60% based on the Bank's  tangible book value at September
30, 1997.

         Comparable  Transaction  Analysis.  FBR  reviewed  certain  information
relating  to  transactions   announced  since  January  1,  1997  involving  the
acquisition  of  thrifts  nationwide  ("Nationwide  Transactions");  thrifts  in
Louisiana  ("Louisiana  Transactions");  thrifts in the  southern  region of the
United States  including  Alabama,  Arkansas,  Louisiana,  Mississippi and Texas
("Southern  Region  Transactions");  thrifts  nationwide  in which the  seller's
return on  average  equity  ("ROAE")  is  between  13% and 16%  ("Seller's  ROAE
Comparable  Transactions");  and thrifts  nationwide  with assets  between  $150
million and $300 million (the "Asset Comparable  Transactions" and collectively,
the  "Comparable  Groups").  In  conjunction  with its  analysis,  FBR  reviewed
valuation  multiples based on price to book value, price to tangible book value,
price to latest twelve  months  earnings per share and the premium over tangible
book value as a percentage  of core  deposits.  FBR compared  Whitney's  pending
acquisition of the Bank to transactions involving the Comparable Groups over the
period  from  January 1, 1997  through  November  10,  1997.  FBR  computed  the
foregoing  ratios for the Merger based on the Exchange  Ratio and Fixed Price of
$73.00 per share  based on the  closing  price of $50.50  per share for  Whitney
Common  Stock (the  closing  price for such stock on  November  19,  1997).  The
Comparable  Groups included the following  numbers of  transactions:  Nationwide
Transactions   (87);  the  Louisiana   Transactions  (2);  the  Southern  Region
Transactions  (6);   Seller's  ROAE  Comparable   Transactions  (6);  and  Asset
Comparable  Transactions  (8). FBR's  computations  yielded the following median
multiples  at  announcement  for  the  Nationwide  Transactions,  the  Louisiana
Transactions,  the Southern  Region  Transactions,  the Seller's ROAE Comparable
Transactions and the Asset Comparable  Transactions,  respectively,  as compared
with the  following  indicated  multiples  for the Bank at  announcement  of the
Merger:  (i) price to book value  multiples of 1.70x,  1.61x,  1.66x,  1.98x and
1.86x,  compared  with 3.14x for the Merger;  (ii) price to tangible  book value
multiples of 1.72x, 1.61x,  1.66x, 1.98x and 1.87x,  compared with 3.14x for the
Merger;  (iii)  price to latest  twelve  months  earnings  multiples  of 24.48x,
45.92x, 30.70x, 18.00x and 19.70x, compared with 22.87x for the Merger; and (iv)
core deposit premiums of 10.69%, 10.90%, 8.20%, 12.20% and 10.30%, compared with
an indicated deposit premium in the Merger of 19.60%.


                                        6

<PAGE>


         Discounted  Earnings  Stream  and  Terminal  Value  Analysis.  Using  a
discounted earnings stream and terminal value analysis, FBR estimated the future
stream of earnings flows that the Bank could be expected to produce  through the
year  2001,  under  various  circumstances,   assuming  the  Bank  performed  in
accordance with the earnings  forecasts of the Bank  management.  To approximate
the  terminal  value  of Bank  Common  Stock  at the end of a  four-year  period
(December 31, 2001), FBR applied price to earnings  multiples  ranging from 20.0
to 22.5,  applied  multiples of tangible  book value ranging from 300 percent to
325 percent and applied  premiums  over  tangible  book value as a percentage of
core deposits of 15.0 percent to 20.0 percent. The net income streams,  dividend
streams and  terminal  values were then  discounted  to present  values  using a
discount  rate of 12  percent.  When a 12 percent  discount  rate was applied to
median merger multiples based on the price to book value multiples of 300 to 325
percent,  the analysis  indicated a reference range between $74.57 to $80.58 per
share of Bank  Common  Stock.  When the same  discount  rate of 12  percent  was
applied  to  merger  market  multiples  based  on price to  earnings  per  share
multiples of 20.0 times to 22.5 times, the analysis  indicated a reference range
between $61.70 and $69.11 per share of Bank Common Stock. When the same discount
rate of 12 percent was applied to merger market multiples based on tangible book
premium to core deposits of 15.0 percent to 20.0 percent, the analysis indicated
a reference range between $61.87 and $73.65 per share of Bank Common Stock.

         Pro Forma Merger Analysis. FBR performed pro forma merger analyses that
combined the Bank's and Whitney's  current and projected  income  statements and
balance   sheets   based  on  earnings   forecasts  of  the  Bank  and  Whitney,
respectively.  Assumptions and analyses of the accounting treatment, acquisition
adjustments, operating efficiencies and other adjustments were made to arrive at
a base case pro forma analysis to determine the effect of the Merger on Whitney.
FBR noted that,  based on the  Exchange  Ratio and the Fixed Price of $73.00 per
share  for each  share of Bank  Common  Stock,  and net of the  impact of merger
related  charges  and other  one-time  expenses,  the  impact  of the  Merger on
Whitney's  earnings  per share and  tangible  book value per share based on such
earnings forecasts did not appear to be material. The actual results achieved by
the combined  company will vary from the projected  results and such  variations
may be material.

         Analysis  of Selected  Publicly  Traded  Companies.  In  preparing  its
presentation,  FBR used  publicly  available  information  to  compare  selected
financial and market trading  information,  including book value,  tangible book
value, earnings,  asset quality ratios, loan loss reserve levels,  profitability
and capital  adequacy,  for Whitney and selected other publicly  traded regional
commercial banks located in the southern region of the United States.  This peer
group  consisted  of 13  commercial  bank  holding  companies  with total assets
between $1 billion and $10 billion.  FBR reviewed the  historical  financial and
trading  information  for  Whitney  and each  member of the peer  group  between
December 31, 1993 and September 30, 1997.

         In  connection  with  rendering  the FBR  Opinion,  FBR  confirmed  the
appropriateness  of its reliance on the analyses used to render its November 20,
1997 opinion by performing  procedures to update certain of such analyses and by
reviewing  the  assumptions  upon which such analyses were based and the factors
considered  in connection  therewith.  The FBR Opinion is  necessarily  based on
economic,  market and other conditions as in effect on, and the information made
available to it as of, the date of such opinion. Events occurring after the date
of the FBR Opinion could  materially  affect the  assumptions  used in preparing
such opinion.

         Pursuant  to the FBR  Agreement,  the Bank  retained  FBR to act as its
independent financial advisor in connection with the Merger. For its services as
financial advisor to the Bank in connection with the Merger,  FBR will receive a
fee equal to  seventy-five  basis points (0.75%) of the fair market value of the
first $50 million of aggregate consideration received by the Bank's shareholders
as of the closing of the transaction; and two percent (2.00%) of the fair market
value of any aggregate  consideration  received by the Bank's shareholders as of
the closing of the transaction in excess of $50 million.  Based on this formula,
FBR will earn a fee of  approximately  $585,000  if the Average  Whitney  Market
Price on the effective date of the Merger is greater than or equal to $46.00 and
less than or equal to $54.00.  Twenty-five  percent (25%) of the anticipated fee
was paid to FBR in immediately  available funds upon the signing of a definitive
agreement  with  Whitney,  which  amount  shall be  returned  to the Bank if the
transaction is not  consummated for any reason other than the breach of the Plan
of  Merger  by the  Bank.  The  remainder  of such  fee  shall  be due to FBR in
immediately available funds at the closing of the transaction. The Bank also has
agreed to reimburse FBR up to $15,000 for its reasonable  out-of-pocket expenses
in connection with its engagement and to indemnify FBR and its

                                        7

<PAGE>


affiliates and their respective partners, directors, officers, employees, agents
and  controlling  persons against certain  expenses and  liabilities,  including
liabilities under applicable securities laws.

         FBR has advised the Bank that,  in the ordinary  course of its business
as a full-service  securities  firm, FBR may,  subject to certain  restrictions,
actively  trade the equity  securities  of the Bank  and/or  Whitney for its own
account or for the accounts of its customers, and, accordingly,  may at any time
hold a long or short position in such securities.

Description of the Plan of Merger

   
         Conversion  of Common  Stock.  Pursuant  to the Plan of Merger,  if all
conditions to the Merger are satisfied or waived,  on the effective  date of the
Merger,  the Bank will be merged with and into  Whitney  Bank,  and the separate
existence  of the Bank will cease.  By reason of the Merger,  and subject to the
adjustments described below, each outstanding share of Bank Common Stock will be
converted  into a number of shares of Whitney  Common Stock that is equal to (a)
if the Average  Whitney Market Price (defined below) is greater than or equal to
$46.00 and less than or equal to $54.00,  the  quotient  (rounded to the nearest
thousandth) determined by dividing (i) $73.00 by (ii) the Average Whitney Market
Price,  (b) if the  Average  Whitney  Market  Price is less than  $46.00,  1.587
shares,  (c) if the Average  Whitney Market Price is greater than $54.00,  1.352
shares, or (d) notwithstanding any of the foregoing,  if, prior to the effective
date of the Merger, (x) Whitney issues a  press  release  announcing  that it is
negotiating  or has  executed a letter of intent or  definitive  merger or other
acquisition  agreement  as a  result  of  which  Whitney  will  cease  to  be an
independent, publicly traded company and (y) Whitney has not thereafter issued a
press release announcing the termination of such negotiations,  letter of intent
or definitive agreement prior to the closing of the transactions contemplated by
the Plan of Merger,  1.352 shares.  The number of shares of Whitney Common Stock
into which one share of Bank Common  Stock would be  converted  by reason of the
merger  pursuant to the  foregoing  provisions  is referred to as the  "Exchange
Ratio."

         The Plan of  Merger  defines  "Average  Whitney  Market  Price"  as the
average  of the  closing  per share  trading  prices  of  Whitney  Common  Stock
(adjusted  appropriately for any stock split, stock dividend,  recapitalization,
reclassification or similar transaction which is effected, or for which a record
date occurs) on the 20 trading days preceding the fifth trading day  immediately
prior to the  effective  date of the  Merger,  as  reported  in the Wall  Street
Journal (corrected for typographical errors), and such period of 20 trading days
is referred to as the "Pricing Period."

         The Bank may  terminate  the Plan of Merger by giving notice to Whitney
at any time during the five-day period  following the Pricing Period if both (a)
the Average  Whitney  Market  Price is less than $40.00 and (b) (i) the quotient
obtained by dividing  the Average  Whitney  Market  Price by $50.00 is less than
(ii) the result  obtained  by  subtracting  0.15 from the  quotient  obtained by
dividing  the  average  of the Index  Prices  (hereinafter  defined)  during the
Pricing  Period by the Index Price on November 24, 1997 (the  "Starting  Date").
The "Index Price" for a particular  date is the weighted  average of the closing
sales prices on such date of an index of bank holding companies  specified in
the Plan of Merger.  That index is adjustable in accordance with the terms of
the Plan of Merger, and as adjusted as of the date hereof, the Index Price on 
the Starting Date was $36.26. If the Bank gives Whitney notice of its intent to
terminate the Plan of Merger pursuant to the conditions  described in this 
paragraph, Whitney may determine, in its sole discretion, to eliminate the 
Bank's right to terminate the Plan of Merger by increasing the Exchange Ratio to
equal the quotient (rounded to the nearest thousandth) obtained by dividing 
$63.48 by the Average Whitney Market Price.

         Conversely,  Whitney may  terminate the Plan of Merger by giving notice
to the Bank at any time during the five-day period  following the Pricing Period
if: (a) the Average  Whitney  Market Price is greater  than $60.00,  (b) (i) the
quotient  obtained by dividing  the Average  Whitney  Market  Price by $50.00 is
greater than (ii) the result obtained by adding 0.15 to the quotient obtained by
dividing the average of the Index Prices during the Pricing  Period by the Index
Price on the Starting Date (currently $36.26), and (c) none of the events 
described in clause (d) of the first paragraph under this subheading  shall have
occurred and be  continuing.  If Whitney gives the Bank notice of its intent to
terminate the Plan of Merger pursuant to the conditions set forth in the 
preceding  sentence, the Bank may determine, in its sole discretion,  to 
eliminate Whitney's right to terminate  the Plan of  Merger by  decreasing  the 
Exchange Ratio to equal the quotient (rounded to the nearest thousandth)
determined by dividing $81.12 by the Average Whitney Market Price.
    

                                        8

<PAGE>

   
          On March 2, 1998, the closing  trading  price for a  share of  Whitney
Common Stock was $61.00,  and if  such  date had  been the effective date of the
Merger, the Average Whitney Market Price would have been $54.725 and the
Exchange Ratio would have been  1.352.  Based on that closing trading price, the
market value of 1.352 shares of Whitney Common Stock on that date would have
been $82.47.  There can be no assurance as to the market value of Whitney Common
Stock on the effective date of the Merger.
    

         Inasmuch as the  consideration to be paid by Whitney in the Merger will
be based on the "Average Whitney Market Price" as defined in the Plan of Merger,
the  actual  value on the  effective  date of the  Merger  of the  shares  to be
received by holders of Bank Common  Stock in the Merger may be more or less than
the Average  Whitney  Market Price of those shares as  calculated  in accordance
with the Plan of Merger.

         In lieu of issuing any fractional  share of Whitney Common Stock,  each
shareholder of the Bank who would  otherwise be entitled  thereto will receive a
cash payment (without interest) equal to such fractional share multiplied by the
Average Whitney Market Price.

         The Plan of  Merger  also  provides  that  each  outstanding  option to
purchase  shares of Bank Common Stock (the "Bank Options")  granted  pursuant to
the Bank's 1993 Key  Employee  Stock  Compensation  Program and 1993  Directors'
Stock  Option  Plan  (the  "Bank  Option  Plans")  that are  outstanding  at the
effective time of the Merger, whether or not exercisable, will be converted into
and become a right to purchase shares of Whitney Common Stock in accordance with
the terms of the Bank Option Plans and the option  agreements by which such Bank
Options  are  evidenced,  except that from and after the  effective  time of the
Merger,  (a) the number of shares of Whitney  Common Stock  subject to each Bank
Option will equal the number of shares of Bank Common Stock subject to such Bank
Options  prior to the effective  time of the Merger,  multiplied by the Exchange
Ratio (with  fractional  shares  rounded down to the nearest  share) and (b) the
exercise price per share of Whitney Common Stock purchasable  thereunder will be
the  exercise  price  specified  in the  applicable  Bank Option  divided by the
Exchange Ratio (rounded up to the nearest cent).  Each such assumed stock option
existing  immediately after the effective time of the Merger is referred to as a
"Replacement Option."

         For  information  regarding  restrictions  on the  transfer  of Whitney
Common Stock  received  pursuant to the Plan of Merger  applicable to certain of
the Bank's  shareholders,  see "Status Under Federal  Securities  Laws;  Certain
Restrictions on Resales."

         Exchange of  Certificates.  On the effective  date of the Merger,  each
Bank  shareholder will cease to have any rights as a shareholder of the Bank and
his sole rights will  pertain to the shares of Whitney  Common  Stock into which
his shares of Bank Common Stock have been converted  pursuant to the Merger.  As
of the  effective  date of the Merger,  Whitney is required to deposit  with the
exchange agent selected by Whitney for the Merger certificates  representing the
shares of Whitney  Common Stock and the cash in lieu of fractional  shares to be
issued and paid in exchange for shares of Bank Common Stock.  Promptly after the
effective  date,  Whitney is required to send or cause to be sent to each person
who was a shareholder  of record of the Bank on the effective date of the Merger
a  letter  of  transmittal,  together  with  instructions  for the  exchange  of
certificates   representing   shares  of  Bank  Common  Stock  for  certificates
representing shares of Whitney Common Stock.

         Shareholders  are  requested  not to send in their  Bank  Common  Stock
certificates  until  they have  received  a letter of  transmittal  and  further
written instructions after the effective date of the Merger.  Please do NOT send
in your stock certificates with your proxy.

         After  the  effective  date  of  the  Merger  and  until   surrendered,
certificates  representing  Bank Common  Stock will be deemed for all  purposes,
other than the payment of dividends or other  distributions,  if any, in respect
of Whitney  Common  Stock,  to  represent  the number of whole shares of Whitney
Common Stock into which such shares have been converted. Whitney, at its option,
may decline to pay former shareholders of the Bank who become holders of Whitney
Common Stock  pursuant to the Merger any dividends or other  distributions  that
may have become payable to holders of record of Whitney  Common Stock  following
the effective date of the Merger until they have surrendered their  certificates
evidencing  ownership  of shares of Bank  Common  Stock,  at which time any such
dividends or other distributions will be paid, without interest.


                                        9

<PAGE>

         Shareholders of the Bank who cannot locate their stock certificates are
urged to contact promptly:

                   Michael D. Templet, Chief Financial Officer
                         Meritrust Federal Savings Bank
                             200 West Second Street
                           Thibodaux, Louisiana 70302
                                 (504) 446-5011

A new stock certificate will be issued to replace the lost  certificate(s)  only
upon  execution  by  the  shareholder  of  an  affidavit   certifying  that  his
certificate(s)  cannot be located and  containing  an agreement to indemnify the
Bank and Whitney  against any claim that may be made against the Bank or Whitney
by the owner of the certificate(s)  alleged to have been lost or destroyed.  The
Bank or Whitney may also require the  shareholder  to post a bond in such sum as
is sufficient to support the  shareholder's  agreement to indemnify the Bank and
Whitney.

         Transfer and Exchange Agents. Bank of New York serves as Transfer Agent
and Registrar for Whitney Common Stock and will act as Exchange Agent in
connection with the Merger.  The Transfer Agent and Registrar for the Bank
Common Stock is ChaseMellon Shareholder Services.

   
         Regulatory Approvals and Other Conditions of the Merger. In addition to
approval  by the  shareholders  of  the  Bank  and  satisfaction  of  the  other
conditions described below, consummation of the Merger will require the approval
of the Office of the  Comptroller  of the  Currency  of the United  States  (the
"Comptroller").  On February  4, 1998,  Whitney  filed  an  application with the
Comptroller  seeking the  approval  of  the Merger,  which was  acknowledged  on
February 9, 1998.  By letter dated February 25, 1998, the  Comptroller indicated
that its Washington, D.C. Bank Organization and Structure Division is conducting
a  review  of  the  competitive  analysis  relating  to  the Merger and that the
anticipated  decision  date  on  the  application  is April 5, 1998.  Whitney is
currently awaiting final approval of that application;  however, there can be no
assurance that it will be obtained by the time of the Meeting or at all.
    

         The  obligations  of the parties to the Plan of Merger are also subject
to other  conditions set forth in the Plan of Merger,  including,  among others:
(i) the accuracy on the date of closing of the  representations  and warranties,
and the compliance with covenants, made in the Plan of Merger by each party, and
the absence of any material adverse change in the financial  condition,  results
of  operations  or business of the other party's  consolidated  group,  (ii) the
receipt  of  required  regulatory  approvals,  (iii) the  receipt  by Whitney of
assurances that the Merger may be accounted for as a pooling-of-interests,  (iv)
the  receipt by Whitney  and the Bank of  opinions  as to  qualification  of the
Merger as a tax-free reorganization under applicable law, (v) the Bank's receipt
of a letter from FBR, dated as of the date of the Meeting, in form and substance
satisfactory  to the  Bank,  confirming  its  fairness  opinion  to the Board of
Directors  of  the  Bank,  and  (vi)  certain  other  conditions  customary  for
agreements of this sort.

         The  parties  intend to  consummate  the Merger as soon as  practicable
after all of the  conditions  to the Merger  have been met or  waived;  however,
there can be no assurance that the conditions to the Merger will be satisfied.

         Effective Date. As soon as practicable after shareholder and regulatory
approval is obtained and all other conditions to the consummation of the Plan of
Merger have been satisfied or waived, the Bank Merger Agreement will be executed
on  behalf of  Whitney  Bank and the Bank and filed  with the  Comptroller.  The
Merger will be effective at the time and date specified therein. Whitney and the
Bank are not able to predict the  effective  date of the Merger and no assurance
can be given that the  transactions  contemplated  by the Plan of Merger will be
effected at any time.  See "- Regulatory  Approvals and Other  Conditions of the
Merger." If the Merger is not consummated by August 31, 1998,  either Whitney or
the Bank may  terminate  the  Plan of  Merger.  See " -  Waiver,  Amendment  and
Termination."

         Conduct of Business  Prior to the Effective  Date.  The Bank has agreed
pursuant to the Plan of Merger that,  prior to the effective date of the Merger,
it will conduct its business only in the ordinary  course  consistent  with past
practices  and that,  without the prior written  consent of the chief  executive
officer of  Whitney or his duly  authorized  designee,  and except as  otherwise
provided in the Plan of Merger, it will not, among other things,  (a) declare or
pay any dividend,  declare or make any distribution on or directly or indirectly
combine, redeem, reclassify, purchase or otherwise acquire any shares of capital
stock or authorize the creation or issuance of or issue any additional shares of

                                       10

<PAGE>

capital stock or  securities or  obligations  convertible  into or  exchangeable
therefor except the Bank's payment of regular quarterly  dividends of $0.175 per
share and the issuance of shares of Bank Common Stock upon exercise of Bank
Options;  (b) amend its  charter or bylaws or adopt or amend any  resolution  or
agreement concerning indemnification of directors or officers; (c) enter into or
modify  any  agreement  requiring  the  payment  of  any  salary,  bonus,  extra
compensation,  pension  or  severance  payment  to any of its  current or former
directors, officers or employees or increase by more than 5% the compensation of
any such person whose annual compensation would, following such increase, exceed
$50,000,  in any manner  inconsistent  with its past practices,  except (i) such
agreements  as are  terminable  at will without  penalty or other payment by it,
(ii) an  increase in the Bank's  corporate  401(k)  contribution  for 1997 in an
amount not to exceed in the  aggregate  more than  $20,000  more than the Bank's
total  contribution  to such plan for 1996 and (iii) an increase of no more than
$50,000 in the  aggregate  bonus  payments to employees  having base salaries of
$50,000 or more; (d) except in the ordinary  course of business  consistent with
past practices,  place or suffer to exist on any of its assets or properties any
mortgage,  pledge,  lien, charge or other encumbrances  (except as allowed under
the Plan of  Merger)  or cancel  any  material  indebtedness  owing to it or any
claims  it may have  possessed,  or waive  any  right  of  substantial  value or
discharge or satisfy any material  non-current  liability;  (e) acquire  another
business or merge or  consolidate  with  another  entity,  or sell or  otherwise
dispose of a  material  part of its  assets,  except in the  ordinary  course of
business  consistent with past practices;  (f) commit or omit to do any act that
would  cause a breach of any Bank  covenant in the Plan of Merger or would cause
any  representation  or warranty of the Bank  contained in the Plan of Merger to
become  untrue;  (g)  commit  or fail to take any  action  that is  intended  or
reasonably  may be expected to result in a material  breach or  violation of any
applicable law,  statute,  rule,  governmental  regulation or order; (h) fail to
maintain  its  books,  accounts  and  records  in the  usual  manner  on a basis
consistent  with that previously  employed;  (i) fail to pay or to make adequate
provision  in all  material  respects  for the  payment of all  taxes,  interest
payments and  penalties  due and payable,  except those being  contested in good
faith by appropriate  proceedings  and for which  sufficient  reserves have been
established; (j) dispose of investment securities, except in a manner consistent
with past  practices and in no event more than 5% of the aggregate book value of
such securities,  or make investments in non-investment grade securities or that
are inconsistent with past investment practices;  (k) enter into any new line of
non-banking  business;  (l) charge off (except as required by law or  regulatory
authorities or generally accepted accounting principles consistently applied) or
sell (except for a price not materially  less than the value thereof) any of its
portfolio of loans,  discounts or  financing  leases,  or sell any asset held as
other real estate or other foreclosed  assets for an amount materially less than
its book value as of September 30, 1997;  (m) make any extension of credit that,
when added to all other  extensions of credit to a borrower and its  affiliates,
would exceed the Bank's applicable  regulatory lending limits; (n) take or cause
to  be   taken   any   action   that   would   disqualify   the   Merger   as  a
"pooling-of-interests"  for accounting purposes or as a "reorganization"  within
the meaning of Section  368(a) of the  Internal  Revenue  Code;  or (o) agree or
commit to do any of the foregoing.

         In  addition,  the Bank has agreed that it will not,  without the prior
approval of Whitney, solicit or initiate inquiries or proposals with respect to,
or,  except to the extent  determined  by the Bank's  Board of Directors in good
faith, after  consultation with its financial advisors and legal counsel,  to be
required to discharge  properly the  directors'  fiduciary  duties to the Bank's
shareholders,  furnish  any  information  relating  to,  or  participate  in any
negotiations or discussions concerning,  any acquisition or purchase of all or a
substantial portion of its assets, or of a substantial equity interest in it, or
any  business  combination  with it (other than as  contemplated  by the Plan of
Merger) or withdraw its recommendation of the Merger to the Bank's shareholders.
The Bank has also agreed that in no event will any such  information be supplied
except   pursuant  to  a   confidentiality   agreement  in  form  and  substance
substantially  the same as the  confidentiality  agreement  previously  executed
between the Bank and Whitney,  that it will  instruct its  respective  officers,
directors,  agents and affiliates to refrain from doing any of the foregoing and
that it will notify  Whitney  immediately if any such inquiries or proposals are
received  by, any such  information  is  requested  from or any  discussions  or
negotiations  are sought to be initiated  with, the Bank or any of its officers,
directors,  agents  or  affiliates.   Notwithstanding  the  foregoing,   nothing
contained  in the Plan of Merger  shall be deemed to  prohibit  any  officer  or
director of the Bank from taking any action that the Board  determines,  in good
faith after  consultation  with and receipt of written  advice from counsel,  is
required by law or is required to discharge his  fiduciary  duties to the Bank's
shareholders.

         Waiver, Amendment and Termination. The Plan of Merger provides that the
parties thereto may waive any of the conditions to their respective  obligations
to consummate  the Merger other than approval by the  shareholders  of the Bank,
the absence of a stop order  suspending the  effectiveness  of the  Registration
Statement of which this Proxy  

                                       11

<PAGE>

Statement-Prospectus  forms a part, the  receipt  of all  necessary  regulatory
approvals,  the  satisfaction   of  all  requirements  prescribed  by  law  for
consummation of the Merger, and the Bank's receipt of a letter from FBR dated as
of the  date of the  Meeting, in  form  and substance  satisfactory to the Bank,
confirming  FBR's  fairness  opinion to the Board of  Directors  of the Bank.  A
waiver must be in writing.

         The Plan of Merger, including all related agreements, may be amended or
modified at any time,  before or after approval by the shareholders of the Bank,
by the mutual  agreement  in writing of the Board of Directors of the parties to
the Plan of Merger. Additionally,  the Plan of Merger may be amended at any time
by the sole action of the chief executive  officers of the respective parties to
the Plan of  Merger to  correct  typographical  errors  or to  change  erroneous
references or  cross-references,  or in any other manner that is not material to
the substance of the transactions contemplated by the Plan of Merger.

         As described  under the  subheading " -- Conversion  of Common  Stock,"
Whitney and the Bank have  certain  rights to  terminate  the Plan of Merger if,
under  certain  circumstances,  the Average  Whitney  Market  Price is more than
$60.00 or less than  $40.00.  The Plan of Merger may also be  terminated  at any
time prior to the effective  date of the Merger by (i) the mutual consent of the
respective  Boards of  Directors  of  Whitney  and the  Bank;  (ii) the Board of
Directors  of either  Whitney or the Bank in the event of a breach by any member
of the consolidated group of the other of them of any  representation,  warranty
or covenant in the Plan of Merger that cannot be cured by the earlier of 15 days
after  written  notice of such  breach or August  31,  1998;  (iii) the Board of
Directors of either Whitney or the Bank if by August 31, 1998 all the conditions
to closing  required by the Plan of Merger have not been met or waived or cannot
be met, or the Merger has not occurred by such date; (iv) Whitney or the Bank if
the  Plan  of  Merger  fails  to  receive  the  requisite  vote  of  the  Bank's
shareholders;  (v)  Whitney  if the Bank's  Board of  Directors  (A)  withdraws,
modifies or changes its  recommendation  to its shareholders as contained herein
or resolves  to do so, (B)  recommends  to its  shareholders  any other  merger,
consolidation,   share   exchange,   business   combination   or  other  similar
transaction,   any  sale,  lease,  transfer  or  other  disposition  of  all  or
substantially all of the assets of the Bank or any acquisition of 15% or more of
any  class of the  Bank's  capital  stock or (C) makes  any  announcement  of an
agreement  to do any of the  foregoing;  (vi) the Bank,  if the Bank  receives a
written  offer with  respect to any  transaction  described in (v) above and the
Board of Directors of the Bank determines in good faith, after consultation with
its financial  advisors and counsel,  that such transaction is more favorable to
the  Bank's  shareholders  than  the  transactions  contemplated  by the Plan of
Merger;  or (vii)  Whitney or the Bank if any  applicable  regulatory  authority
formally  disapproves  the  Merger  or  approves  the  Merger  in a  manner  not
reasonably  acceptable to Whitney in good faith. The Plan of Merger provides for
a  termination  fee of  $3,000,000  payable  to Whitney if the Plan of Merger is
terminated  under  the  circumstances  described  in  clause  (v) or (vi) of the
preceding   sentence.   The   provisions   in  the  Plan  of  Merger   regarding
confidentiality,  payment  of the  termination  fee  and  certain  miscellaneous
matters will survive any termination of the Plan of Merger.

         Expenses.  The Plan of Merger  provides that  regardless of whether the
Merger is consummated,  expenses  incurred in connection with the Plan of Merger
and the transactions  contemplated  thereby shall be borne by the party that has
incurred them.

Interests of Certain Persons

         Employment  Status.  All employees of the Bank at the effective time of
the Merger shall become or remain employees of Whitney Bank. Whitney and Whitney
Bank reserve the right to  terminate  any such  employee,  and to modify the job
duties, compensation and authority of such employees.

         Employee  Benefits.  Whitney has agreed that, at the effective  time of
the Merger,  all persons  then  employed by the Bank shall be eligible  for such
employee benefits as are generally available to employees of Whitney Bank having
like  tenure,  officer  status  and  compensation  levels,  except  that (a) all
executive and senior level management bonuses,  stock options,  restricted stock
and similar  benefits will be at the discretion of Whitney  Bank's  Compensation
Committee,  and (b) all Bank employees who are employed at the effective time of
the Merger will be given full credit for all prior  service as  employees of the
Bank, provided, however, that all such employees shall be treated as newly hired
Whitney Bank's employees for all purposes of Whitney's or Whitney Bank's defined
benefit  pension  plan  (i.e.,  prior  service  credit with the Bank will not be
considered in  determining  future  benefits  under  Whitney's or Whitney Bank's
defined benefit pension plan).


                                       12

<PAGE>


         Management.  As of the effective time of the Merger, Whitney has agreed
to hire Lee J.  Guarisco,  Vice  Chairman  of the Bank,  as the  Thibodaux  City
President and Senior Vice President. Mr. Guarisco's base salary will be $125,000
per year.  Based  upon the review of Mr.  Guarisco's  performance  by  Whitney's
Compensation  Committee,  Mr. Guarisco will be eligible for annual bonuses up to
50% of his base salary and the granting of restricted  shares of Whitney  Common
stock and incentive  stock options.  Mr.  Guarisco will also receive a change in
control  agreement  entitling him to two times his average  annual  compensation
from Whitney if his  employment  is  terminated  within one year before or three
years  following  a change in  control of  Whitney.  Mr.  Guarisco  will also be
entitled to the continued use of his Bank-owned automobile following the Merger.
Mr.  Guarisco has agreed not to compete  directly or indirectly  with Whitney in
the  parishes  in which the Bank has  offices for a period of two years after he
ceases to be an employee of Whitney,  in exchange  for the payment by Whitney of
up to $60,000 (subject to certain conditions), with the exact amount to be based
upon an appraisal of the value of Mr. Guarisco's undertaking not to compete. Mr.
Guarisco's employment by Whitney will be on an "at will" basis.

         Change in Control Agreements.  The Bank has employment  agreements with
each of Messrs.  Guarisco and Berthelot and three other executive  officers (the
"Change  in  Control  Agreements").  Whitney  has  agreed to assume  the  Bank's
obligations  under these  agreements and has agreed that the consummation of the
Merger  will  trigger  the  payment of  severance  benefits  under the Change in
Control Agreements.  The benefits payable under each Change in Control Agreement
will be paid in monthly installments commencing on the first business day of the
month following the effective date of the Merger.

         The sum of (1) the present value of the cash  severance  benefits to be
paid pursuant to the Change in Control Agreements,  (2) the present value of the
fringe benefits to be provided pursuant to the Change in Control Agreements, and
(3) the deemed  parachute  payments that arise from the  accelerated  vesting of
stock options,  which will be treated as contingent on the change in control for
purposes of Section 280G of the Internal Revenue Code of 1986, as amended,  will
be  approximately  $407,000  and $277,000  for Messrs.  Guarisco and  Berthelot,
respectively.

         Bank Options.  The  directors  and executive  officers of the Bank have
been granted  currently  outstanding  stock  options to purchase an aggregate of
69,000  shares of Bank  Common  Stock  pursuant to the Bank  Option  Plans.  All
options  outstanding under the Bank Option Plans have an exercise price equal to
the fair market value of Bank Common Stock on the date the options were granted.
In accordance with the terms of the respective Bank Option Plans and the Plan of
Merger,  each  Bank  Option  outstanding  under  the  Bank  Option  Plans on the
effective  date  of  the  Merger  will  become  immediately  exercisable  and be
converted  into a  Replacement  Option as described  above under the heading " -
Description of the Plan of Merger -- Conversion of Common Stock."

         The  following   table  presents  the  number  and  exercise  price  of
Replacement  Options each  director and  executive  officer would receive on the
effective  date of the Merger,  based on the number of Bank Options held by such
person as of December 31, 1997.


                                       13

<PAGE>
<TABLE>
<CAPTION>
                                                       Bank Options                           Replacement Options(2)
                                            ------------------------------------      ---------------------------------
Director/Executive Officer                  No. of Shares(1)      Exercise Price      No. of Shares      Exercise Price
- --------------------------                  ----------------      --------------      -------------      --------------
<S>                                                 <C>                    <C>             <C>                   <C>
Stephen R. Berthelot                                10,000                $10.00           14,600                $6.85
Jack C. Caldwell                                     2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       205                 26.25              299                17.98
J. Parker Conrad                                     2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       204                 26.25              298                17.98
H. V. Fondren, Jr.                                   2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       205                 26.25              299                17.98
Rogers A. George                                     2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       205                 26.25              299                17.98
Lee J. Guarisco                                     10,000                 10.00           14,600                 6.85
                                                    10,000                 31.50           14,600                21.58
Victor Guarisco II                                     250                 18.25              365                12.50
                                                       204                 26.25              298                17.98
Bobby J. Hebert, Sr.                                 2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       205                 26.25              299                17.98
Art E. Magee                                         2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       204                 26.25              298                17.98
Curtis Mire                                          2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       205                 26.25              299                17.98
Edward J. Patterson, Jr.                             2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       205                 26.25              299                17.98
Marco J. Picciola II                                 2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       204                 26.25              298                17.98
Fallon J. Weldon                                     2,000                 10.00            2,920                 6.85
                                                       250                 18.25              365                12.50
                                                       204                 26.25              298                17.98
William J. Barbera                                   4,000                 31.50            5,840                21.58
JoAnne R. Bergeron                                   4,000                 10.00            5,840                 6.85
Michael D. Templet                                   6,000                 10.00            8,760                 6.85
Total Shares                                        69,000                 15.22          100,740                10.42
                                                                                          (Footnotes are on following page)
</TABLE>

                                       14

<PAGE>
- ------------------------
(1)  Represents the total number of shares subject to option. As of December 31,
     1997,  all of such options  were  vested;  the vesting of 13.3% of the Bank
     Options accelerated upon execution of the Plan of Merger in accordance with
     the terms of the Bank  Option  Plans.  See  "Information  about the Bank --
     Security Holdings of Principal Shareholders and Management."

(2)  Based on an  Average  Whitney  Market  Price on the  effective  date of the
     Merger of $50.00  per  share.  The  actual  number  of  shares  subject  to
     Replacement Options and the exercise price thereof will be determined based
     on, among other things,  the Average  Whitney Market Price on the effective
     date of the Merger. See " - Description of the Plan of Merger -- Conversion
     of Common Stock."
                              ---------------------

         Advisory  Board.  Whitney has indicated  that the directors of the Bank
will be invited to join Whitney Bank's  Thibodaux City Board, an advisory board,
following  the  effective  time of the Merger.  Advisory  directors  who are not
full-time employees of Whitney will be entitled to receive a per diem payment of
$100 for each city board meeting they attend.  The advisory  board  meetings are
anticipated to be held monthly.

         Indemnification  and  Insurance.  Whitney has agreed that all rights to
indemnification   and  all  limitations  of  liability   existing  in  favor  of
indemnified parties under the charter,  bylaws and  indemnification  plan of the
Bank as in effect on November 20, 1997 and under  applicable law with respect to
matters  occurring  prior to or on the effective date of the Merger will survive
for a period concurrent with the applicable statute of limitations.  Whitney has
also agreed to use its best efforts to cause those  persons  serving as officers
and directors of the Bank immediately  prior to the effective time of the Merger
to be covered for three years thereafter by the directors and officers liability
insurance policy maintained by the Bank (or a substitute policy) with respect to
acts or omissions  occurring  prior to or at the  effective  time of the Merger,
subject to certain  conditions.  In addition,  Whitney has agreed to  indemnify,
under certain conditions, the Bank's directors, officers and controlling persons
against certain expenses and liabilities,  including certain liabilities arising
under federal securities laws.

         No director or executive officer of the Bank owns any shares of Whitney
Common  Stock.  No director  or  executive  officer of Whitney has any  personal
interest in the Merger  other than by reason of his  holdings of Whitney  Common
Stock, nor do such directors or executive officers own any shares of Bank Common
Stock.

Status Under Federal Securities Laws; Certain Restrictions on Resales

         The shares of Whitney Common Stock to be issued to  shareholders of the
Bank pursuant to the Plan of Merger have been  registered  under the  Securities
Act of 1933, as amended (the "Securities Act"),  thereby allowing such shares to
be freely traded without restriction by persons who will not be "affiliates" (as
that  term is  defined  in the  Securities  Act and the  rules  and  regulations
thereunder) of Whitney or who were not "affiliates" of the Bank.

         Directors and certain  officers and principal  shareholders of the Bank
may be deemed to be  "affiliates"  of the Bank.  Such persons may resell Whitney
Common  Stock  received  by them  pursuant  to the Merger only if the shares are
registered  for  resale  under  the  Securities  Act or an  exemption  from  the
registration  requirements of the Securities Act is available.  All such persons
should  carefully  consider  the  limitations  imposed  by  Rules  144  and  145
promulgated  under the  Securities Act prior to effecting any resales of Whitney
Common  Stock.  Each such  affiliate  has entered into an agreement  not to sell
shares of Whitney  Common Stock  received by him in violation of the  Securities
Act. This Proxy  Statement-Prospectus  does not cover resales of Whitney  Common
Stock  offered  hereby  to  be  received  by  Bank  shareholders  deemed  to  be
"affiliates" of the Bank or of Whitney upon consummation of the Merger.

         Further,   in   accordance   with  the   requirements   for  using  the
pooling-of-interests  method of accounting,  shareholders of the Bank who may be
deemed  "affiliates"  of the Bank have  agreed not to sell the shares of Whitney
Common  Stock  received  by  them  in the  Merger  until  at  least  30  days of
post-closing  combined  earnings of Whitney and the Bank have been  published by
Whitney.  Whitney has agreed to publish such an earnings  release as promptly as
practicable following receipt of such financial results.

                                       15

<PAGE>

Accounting Treatment

         It is a condition to Whitney's obligation to consummate the Merger that
(i) it receive certain assurances from the Bank's independent public accountants
that  the  Merger  may be  accounted  for as a  pooling-of-interests  under  the
requirements  of  Opinion  No.  16 of the  Accounting  Principles  Board  of the
American  Institute of Certified Public  Accountants and the published rules and
regulations of the Commission  for accounting and financial  reporting  purposes
and (ii) neither  Whitney's  independent  public  accountants nor the Commission
shall have taken the position that the transactions  contemplated by the Plan of
Merger do not qualify for pooling-of-interests  accounting treatment.  Under the
pooling-of-interests  method of accounting,  after certain adjustments necessary
to conform the basis of  presentation  of the Whitney and the Bank  information,
the  recorded  assets and  liabilities  of Whitney  and the Bank will be carried
forward  to  Whitney's  consolidated  financial  statements  at  their  recorded
amounts,  the consolidated  earnings of Whitney will include earnings of Whitney
and the Bank for the  entire  fiscal  year in which the  Merger  occurs  and the
reported earnings of Whitney and the Bank for prior periods will be combined and
restated as consolidated earnings of Whitney. Similar treatment will be given to
any other  acquisitions that are accounted for as poolings of interests and that
are  consummated  during the fiscal year. See "- Regulatory  Approvals and Other
Conditions of the Merger" and "- Status Under Federal  Securities Laws;  Certain
Restrictions on Resales."

Pro Forma Data

   
         In light of the  respective  total assets and net income of Whitney and
the  Bank,  pro  forma  financial  statements  are not  included  in this  Proxy
Statement-Prospectus.   The Bank's  total  assets were less than 6% of Whitney's
total assets at both September 30, 1997 and December 31, 1996,  and  the Bank's
net income for both the nine months ended  September 30, 1997 and the year ended
December  31,  1996 were  less  than 6% of  Whitney's  net  income  for the same
periods.  As a result,  pro forma  financial  information  giving  effect to the
Merger was deemed to be immaterial.
    

                          ABSENCE OF DISSENTERS' RIGHTS

         A Bank shareholder who objects to the Merger does not have "dissenters'
rights" and,  therefore,  does not have the right to dissent from the Merger and
have paid to him in cash by  Whitney  the fair cash  value of his shares of Bank
Common Stock.

                     CERTAIN FEDERAL INCOME TAX CONSEQUENCES

         The  following is a summary of the opinion of Arthur  Andersen LLP that
Whitney and the Bank expect to receive  concerning  the material  federal income
tax  consequences  to holders of Bank Common  Stock  resulting  from the Plan of
Merger.  Consummation  of the Merger is conditioned  upon receipt by Whitney and
the Bank of such  opinion  dated  the date set for  consummation  of the Plan of
Merger.  The  following  is based upon  applicable  federal law and judicial and
administrative  interpretations  on the date hereof,  any of which is subject to
change at any time,  and  representations  of  management  of Whitney and of the
Bank.

         (a) The Merger will qualify as a  reorganization  under  Section 368 of
the  Internal  Revenue  Code of 1986,  as amended  (the  "Code"),  and the Bank,
Whitney and Whitney Bank each will be a "party to a  reorganization"  within the
meaning of Section 368(b) of the Code.

         (b) No gain or loss will be recognized by the Bank,  Whitney or Whitney
Bank as a result of the Merger.

         (c) No gain or loss will be recognized by a shareholder  of the Bank on
the receipt  solely of Whitney  Common  Stock in exchange for his shares of Bank
Common Stock.

         (d) The tax basis of the shares of Whitney  Common Stock to be received
by shareholders of the Bank pursuant to the Merger will be the same as the basis
of the shares of Bank Common Stock surrendered in exchange  therefor,  decreased
by the amount of basis  allocated  to any cash  received  in lieu of  fractional
shares that are  hypothetically  received by the  shareholder  and  redeemed for
cash.

                                       16

<PAGE>


         (e) The  holding  period of the  shares of Whitney  Common  Stock to be
received by  shareholders  of the Bank  pursuant to the Merger will  include the
holding period of the shares of Bank Common Stock exchanged  therefor,  provided
that the shares of Bank Common Stock are held as capital assets on the effective
date of the Merger.

         (f)  The  payment  of  cash  to  shareholders  of the  Bank  in lieu of
fractional  share  interests  of Whitney  Common Stock will be treated as if the
fractional  shares were distributed as part of the exchange and then redeemed by
Whitney.  These  cash  payments  will be treated as having  been  received  as a
distribution  in redemption of that  fractional  share  interest  subject to the
conditions and limitations of Section 302 of the Code. If a fractional  share of
Whitney  Common  Stock  would  constitute  a  capital  asset  in the  hands of a
redeeming  shareholder,  any  resulting  gain or loss will be  characterized  as
capital  gain or loss in  accordance  with the  provisions  and  limitations  of
Subchapter P of Chapter 1 of the Code.

         The  opinion of Arthur  Andersen  LLP is not  binding  on the  Internal
Revenue Service,  which could take positions contrary to the conclusions in such
opinion.

         As a result of the  complexity  of the tax laws,  and  because  the tax
consequences  to any  particular  shareholder  may be  affected  by matters  not
discussed  herein,  it is recommended  that each shareholder of the Bank consult
his personal tax advisor  concerning  the  applicable  federal,  state and local
income tax consequences of the Merger.

                  ADJOURNMENT OF SPECIAL MEETING, IF NECESSARY

         Each  proxy  solicited  hereby  requests   authority  to  vote  for  an
adjournment of the Meeting,  if an  adjournment  is deemed to be necessary.  The
Bank may seek an  adjournment  of the Meeting for not more than 29 days in order
to enable the Bank to solicit additional votes in favor of the proposal to adopt
the Plan of Merger if such  proposal  has not  received  the  requisite  vote of
shareholders  at the Meeting and such  proposal  has not  received  the negative
votes of the holders of one-third of the  outstanding  Bank Common Stock. If the
Bank  desires to adjourn  the Meeting  with  respect to such  proposal,  it will
request a motion that the Meeting be adjourned for up to 29 days with respect to
such  proposal,  and no vote will be taken on such  proposal  at the  originally
scheduled Meeting.  Each proxy solicited hereby, if properly signed and returned
to the Bank and not  revoked  prior to its use,  will be voted on any motion for
adjournment  in  accordance  with  the  instructions  contained  therein.  If no
contrary  instructions are given,  each proxy received will be voted in favor of
any motion to adjourn the Meeting.  Unless  revoked  prior to its use, any proxy
solicited for the Meeting will continue to be valid for any  adjournment  of the
Meeting,  and will be voted in accordance with instructions  contained  therein,
and if no contrary instructions are given, for the proposal in question.

         Any adjournment will permit the Bank to solicit  additional proxies and
will permit a greater expression of the shareholders'  views with respect to the
Merger proposal.  Such an adjournment would be  disadvantageous  to shareholders
who are against the Merger  proposal,  because an adjournment will give the Bank
additional  time to solicit  favorable  votes and thus  increase  the chances of
passing the Merger proposal.

         If a quorum is not present at the  Meeting,  no proposal  will be acted
upon and the Board of  Directors of the Bank will adjourn the Meeting to a later
date in order to  solicit  additional  proxies  on each of the  proposals  being
submitted to shareholders.

         An adjournment for up to 29 days will not require either the setting of
a new  record  date or  notice  of the  adjourned  meeting  as in the case of an
original  meeting.  The Bank has no reason to believe that an adjournment of the
Meeting will be necessary at this time.

         Because the Board of Directors  recommends that  shareholders  vote FOR
the  proposal  to adopt the Plan of Merger,  as  discussed  above,  the Board of
Directors  recommends that shareholders vote FOR the possible adjournment of the
Meeting.  The holders of a majority of the Bank Common Stock present,  in person
or by proxy,  at the Meeting will be required to approve a motion to adjourn the
Meeting.

                                       17

<PAGE>


                           INFORMATION ABOUT THE BANK

General

         The Bank is a federally chartered,  stock savings bank headquartered in
Thibodaux,  Louisiana.  On September 30, 1993,  First  Federal  Savings and Loan
Association of Thibodaux ("First  Federal")  converted from mutual to stock form
and  simultaneously  merged  with  and into  Atchafalaya  Federal  Savings  Bank
("Atchafalaya"),  with Atchafalaya being the surviving  institution (the "Merger
Conversion").  Atchafalaya  then changed its name to Meritrust  Federal  Savings
Bank and  changed  its home  office  to the home  office of First  Federal.  The
274,176 shares of common stock of Atchafalaya  outstanding  immediately prior to
the Merger  Conversion  were  converted  into shares of Bank  Common  Stock on a
one-for-one  basis,  and the Bank issued an  additional  500,000  shares of Bank
Common Stock in the Merger Conversion at a price of $10.00 per share. The Merger
Conversion   was  accounted  for  under  the   pooling-of-interests   method  of
accounting,  and  accordingly  all historical  data included or  incorporated by
reference herein for the Bank includes both First Federal and Atchafalaya.

         The business of the Bank consists primarily of attracting deposits from
the  general  public  and using  those and other  available  sources of funds to
originate  consumer loans and loans secured by single-family  residences located
primarily  in  Thibodaux,   Houma,  Luling,  Raceland,  Vacherie  and  Galliano,
Louisiana and in St. Mary Parish.  To a lesser extent,  the Bank also originates
construction loans and loans secured by multi-family  residential and commercial
real  estate.  In  addition,  the Bank  invests  in U.S.  Government  and agency
securities and mortgage-backed  securities.  At September 30, 1997, the Bank had
total  assets  of  $233.3   million,   deposits  of  $210.4  million  and  total
shareholders' equity of $19.3 million.

         Deposits in the Bank are insured by the Savings  Association  Insurance
Fund  ("SAIF"),   which  is  administered  by  the  Federal  Deposit   Insurance
Corporation ("FDIC"), to the maximum extent provided by law. The Bank is subject
to examination and comprehensive regulation by the OTS and the FDIC. The Bank is
a member of the Federal Home Loan Bank  ("FHLB") of Dallas,  which is one of the
12  regional  banks  comprising  the FHLB  System.  The Bank is also  subject to
regulations of the Board of Governors of the Federal  Reserve  System  governing
reserves required to be maintained against deposits and certain other matters.

         The  Bank's  executive  office is located  at 200 West  Second  Street,
Thibodaux, Louisiana 70302, and its telephone number is (504) 446-5011.

Market Prices of and Dividends Declared on Bank Common Stock

         The Bank Common Stock is included for quotation on the Nasdaq  SmallCap
Market under the symbol  "MERI." The following  table sets forth for the periods
indicated the high and low reported closing sale prices per share of Bank Common
Stock as  reported on the Nasdaq  SmallCap  Market and the  quarterly  dividends
declared for each such period.

               Price Range of Common Stock and Quarterly Dividends

                                              High          Low         Dividend
1996

  First Quarter.............................. $34          $29 1/2        $0.150
  Second Quarter.............................  34           29 1/2         0.150
  Third Quarter..............................  31 1/2       30 3/4         0.150
  Fourth Quarter.............................  31 5/8       30 3/4         0.175

1997
  First Quarter ............................  $36 3/8      $31 1/2        $0.175
  Second Quarter............................   41 1/2       34             0.175
  Third Quarter.............................   47           39             0.175
  Fourth Quarter............................   69           46             0.175

                                       18

<PAGE>


Security Holdings of Principal Shareholders and Management

         The  following  table sets forth,  as of  February  19,  1998,  certain
information as to the Bank Common Stock beneficially owned by (i) each person or
entity,  including  any "group" as that term is used in Section  13(d)(3) of the
Securities  Exchange Act of 1934, as amended (the "Exchange  Act"), who or which
was known to the Bank to be the  beneficial  owner of more than 5% of the issued
and outstanding Bank Common Stock, (ii) each director of the Bank, and (iii) all
directors and executive officers of the Bank as a group.


                                                      Bank Common Stock
                                                    Beneficially Owned(1)(2)
                                                    ------------------------
Name of Beneficial Owner                       Number                    Percent
- ------------------------                     ----------                  -------

Lee J. Guarisco, Director                    57,490(3)(4)                   7.2%
1005 Poplar Street
Morgan City, Louisiana  70380

Curtis Mire, Director                        45,080(5)                      5.8%
910 Marshall Street
Morgan City, Louisiana  70380

Other Directors:
  Stephen R. Berthelot                       16,000(6)                      2.0%
  Jack C. Caldwell                           13,155(7)                      1.7%
  J. Parker Conrad                           22,216(4)                      2.9%
  H. V. Fondren, Jr.                         22,455                         2.9%
  Rogers A. George                            5,955                           *
  Victor Guarisco II                          5,954(4)                        *
  Bobby J. Hebert, Sr.                        5,955                           *
  Art E. Magee                                3,704                           *
  Edward J. Patterson, Jr.                   19,530(4)                      2.5%
  Marco J. Piccola II                         5,954                           *
  Fallon J. Weldon                            5,954(4)                        *

All directors and executive officers of the
  Bank as a group (16 persons)              245,616                        29.1%

- --------------------

*        Represents less than 1% of the outstanding Bank Common Stock.

(1)      For  purposes of this table,  pursuant to rules  promulgated  under the
         Exchange Act, an individual is considered to beneficially own shares of
         Bank Common Stock if he or she directly or indirectly has or shares (1)
         voting power,  which includes the power to vote or to direct the voting
         of the shares;  or (2)  investment  power,  which includes the power to
         dispose or direct  the  disposition  of the  shares.  Unless  otherwise
         indicated,  an  individual  has sole voting  power and sole  investment
         power with respect to the indicated shares.

(2)      Under  applicable  regulations,  a person is deemed to have  beneficial
         ownership  of any shares of Bank  Common  Stock  which may be  acquired
         within 60 days pursuant to the exercise of  outstanding  stock options.
         Shares of Bank  Common  Stock  which are  subject to stock  options are
         deemed to be outstanding for the purpose of computing the percentage of
         outstanding  Bank  Common  Stock  owned by such person or group but not
         deemed  outstanding for the purpose of computing the percentage of Bank
         Common Stock owned by any other person

                                         (Footnotes continued on following page)

                                       19

<PAGE>

         or group.  The above  table  includes  stock  options in the  following
         amounts:  Mr.  Lee  Guarisco,  20,000  shares;  each of  Messrs.  Mire,
         Caldwell,  Fondren,  George,  Hebert and Patterson,  2,455 shares;  Mr.
         Berthelot,  10,000 shares; each of Messrs.  Conrad,  Magee, Piccola and
         Weldon,  2,454  shares;  Mr.  Victor  Guarisco,  454  shares;  and  all
         directors and executive officers as a group, 69,000 shares.

(3)      Includes 27,490 shares held jointly with Mr. Guarisco's spouse and 
         3,000 shares held by his spouse.

(4)      Excludes  shares  held by other  family  members not living in the same
         household,  as to  which  shares  the  specified  individual  disclaims
         beneficial ownership.

(5)      Includes 625 shares held by Mr. Mire's spouse.

(6)      Shares held jointly with spouse.

(7)      Includes 2,500 shares held by Mr. Caldwell's spouse.


                            INFORMATION ABOUT WHITNEY

General

         Whitney  is a  Louisiana  corporation  and a  registered  bank  holding
company under the Bank Holding  Company Act of 1956, as amended.  Whitney became
an  operating  entity  in  1962  with  Whitney  Bank  as  its  only  significant
subsidiary.  Whitney  Bank,  a national  banking  association  headquartered  in
Orleans Parish,  Louisiana,  has been engaged in the general banking business in
southern Louisiana continuously since 1883. As a result of consolidating mergers
of Whitney's other banking  subsidiaries  into Whitney Bank effective  January 1
and 2, 1998, Whitney Bank currently  operates through  approximately 100 banking
offices in south  Louisiana,  southern  Mississippi and Alabama and northwestern
Florida.  Whitney  Bank also  maintains a foreign  branch on Grand Cayman in the
British West Indies.

         Whitney Bank is a  full-service  commercial  bank engaged in commercial
and retail banking and in the trust business,  including the taking of deposits,
the  making  of  secured  and  unsecured  loans,  the  financing  of  commercial
transactions,  the  delivery  of  corporate,  pension  and  personal  trust  and
investment  services and safe deposit  rentals.  Whitney Bank also issues credit
cards and is active as a correspondent for other banks.

         During  1995,  Whitney   established   Whitney  Community   Development
Corporation   ("WCDC"),   a   for-profit   community   development   corporation
incorporated  under the laws of the State of  Louisiana.  WCDC is  authorized to
make equity and debt investments in corporations or projects designed  primarily
to  promote  community  welfare,   including  the  economic  rehabilitation  and
development of low to moderate  income areas by providing  housing,  services or
jobs for residents,  or promoting small  businesses that service low to moderate
income areas.

         At  September  30,  1997,  Whitney  had  consolidated  total  assets of
approximately  $4.2 billion,  consolidated  total deposits of approximately $3.3
billion and consolidated  shareholders'  equity of  approximately  $468 million.
Whitney's and Whitney Bank's principal  executive offices are located at 228 St.
Charles Avenue, New Orleans,  Louisiana 70130, and its telephone number is (504)
586-7117.

Recent Developments

         Whitney has entered into a definitive  agreement dated December 5, 1997
with Louisiana  National  Security Bank  ("LNSB"),  pursuant to which LNSB would
merge with and into  Whitney Bank (the "LNSB  Acquisition").  LNSB is a national
banking   association   headquartered   in   Donaldsonville,   Louisiana,   with
approximately  $110  million in assets and three  branches  located in Ascension
Parish, Louisiana.

         Under  the  terms of the LNSB  Agreement,  shareholders  of LNSB  would
receive,  in the  aggregate,  shares of Whitney  Common  Stock having a value of
approximately $32 million (plus the amount of LNSB's retained net income

                                       20

<PAGE>

after taxes from July 1, 1997  through the month  preceding  the closing of that
transaction).  As in the Merger,  the actual value on the effective  date of the
LNSB  Acquisition of the shares of Whitney Common Stock to be received by LNSB's
shareholders  may be more or less than the amount  described  above  inasmuch as
such  consideration will be determined in reference to a defined "average market
price"  of  Whitney  Common  Stock.  The  LNSB  Acquisition  is  expected  to be
consummated in the second quarter of 1998, but is subject to regulatory and LNSB
shareholder approval and other customary  conditions.  There can be no assurance
that the LNSB Acquisition will be consummated at such time or at all.

         Whitney  continues  to  explore  opportunities  to  acquire  additional
financial  institutions  as  part  of an  expansion  strategy  that  focuses  on
developing a  significant  banking  presence  along the United States Gulf Coast
from southeast Texas through the Florida panhandle.  Discussions are continually
being carried on relating to such potential acquisitions. Whitney may, after the
date of this  Proxy  Statement-Prospectus,  enter  into one or more  acquisition
agreements with one or more of such institutions;  however,  it is not currently
known whether  Whitney's  discussions will result in further  acquisitions or on
what terms any such acquisitions would be made.

         On January 15, 1998,  Whitney  announced 1997 annual  earnings of $52.2
million, or $2.52 per share, with fourth quarter 1997 earnings of $13.6 million,
or $0.66  per  share,  in each  case  after  the  recognition  of  non-recurring
merger-related  expenses  (net  of  tax)  of  $2.4  million  and  $0.6  million,
respectively.

Market Prices of and Dividends Declared on Whitney Common Stock

         Whitney  Common Stock is included for quotation on the Nasdaq  National
Market  System  (the  "Nasdaq  National  Market")  under the symbol  "WTNY." The
following  table sets forth for the periods  indicated the high and low reported
closing sale prices per share of Whitney  Common Stock as reported on the Nasdaq
National Market and the quarterly dividends declared for each such period.

               Price Range of Common Stock and Quarterly Dividends

                                         High              Low          Dividend
                                        ------            -----         --------
1996

  First Quarter....................     $31 3/4           $29 3/4          $0.22
  Second Quarter...................      31 3/4            29 3/4           0.25
  Third Quarter....................      32 3/4            29 1/2           0.25
  Fourth Quarter...................      35 7/8            31 3/4           0.25

1997
  First Quarter ...................     $40 1/2            34 3/4           0.28
  Second Quarter...................      43 1/8            35               0.28
  Third Quarter....................      47 3/8            30 3/4           0.28
  Fourth Quarter...................      61 3/4            45 3/4           0.28


                       COMPARATIVE RIGHTS OF SHAREHOLDERS

         If the  shareholders  of the Bank  approve  the Plan of Merger  and the
Merger is  subsequently  consummated,  all  shareholders of the Bank will become
shareholders of Whitney,  and their rights will be governed by and be subject to
the Articles of Incorporation and By-laws of Whitney rather than the Charter and
Bylaws of the Bank.  The following is a description  of the Whitney Common Stock
and a brief summary of certain of the principal  differences  between the rights
of shareholders of Whitney and the Bank not described elsewhere herein.

Description of Whitney Common Stock

         The authorized  capital stock of Whitney consists of 40,000,000  shares
of Common Stock, no par value, of which  20,804,175 were outstanding on December
31, 1997. The following description of Whitney's capital stock is

                                       21

<PAGE>

qualified in its entirety by  reference to Whitney's  Articles of  Incorporation
and  By-laws  and  to  the  applicable  provisions  of  the  Louisiana  Business
Corporation Law (the "LBCL").

         Common Stock

         Voting Rights - Non-cumulative  Voting. Holders of Whitney Common Stock
are  entitled  to one  vote  per  share  on all  matters  to be  voted on by the
shareholders.  Holders of Whitney  Common  Stock do not have  cumulative  voting
rights.  As a result,  the holders of more than 50% of the Whitney  Common Stock
may elect all of the directors.

         Dividend  Rights.  Holders  of  outstanding  Whitney  Common  Stock are
entitled to receive such  dividends,  if any, as may be declared by the Board of
Directors, in its discretion, out of funds legally available therefor.

         Liquidation  Rights.  In the event of the  liquidation of Whitney,  the
holders of Whitney  Common  Stock are  entitled  to receive  pro rata any assets
distributable to shareholders in respect of their shares.

         Preemptive Rights.  Holders of Whitney Common Stock have no preemptive
rights to subscribe for additional shares of capital stock.

         Directors

         The Board of Directors of Whitney is divided  into five  classes,  with
members of each class to serve for five years and one class being  elected  each
year. Directors of Whitney must also be shareholders of Whitney. Any director of
Whitney may be removed from office with or without cause only by the affirmative
vote of at least 90% of the voting power of Whitney present at a special meeting
of the shareholders  called for that purpose.  The quorum requirement for such a
meeting  is 90% of the total  voting  power of  Whitney  present in person or by
proxy.

         The  LBCL  permits  corporations  to (i)  include  provisions  in their
articles of  incorporation  that limit the personal  liability of directors  and
officers  for  monetary  damages  resulting  from  breaches of the duty of care,
subject to certain exceptions,  and (ii) indemnify directors and officers, among
others, in certain  circumstances for their expenses and liabilities incurred in
connection with defending  pending or threatened  suits.  Whitney's  Articles of
Incorporation  include a provision  that  eliminates  the personal  liability of
directors  and officers to Whitney and its  shareholders  for  monetary  damages
resulting  from  breaches  of the  duty  of care to the  full  extent  currently
permitted by the LBCL and further  provides that any amendment or repeal of that
provision  will not affect the  elimination  or  limitation  of  liability of an
officer or director with respect to conduct  occurring prior to the time of such
amendment or repeal.

         The  Articles of  Incorporation  also provide for  indemnification  and
advancement of expenses of any officer,  director,  employee or agent of Whitney
for any action taken in good faith by that officer, director, employee or agent.
Indemnification  in the case of actions  by or in the right of Whitney  shall be
limited to expenses actually and reasonably incurred in defense or settlement of
the action.  The Board of Directors,  in its  discretion,  may choose to provide
further indemnification to officers, directors, employees and agents of Whitney.

         The Articles of Incorporation and By-laws authorize Whitney to maintain
insurance covering the actions of its officers, directors, employees and agents,
and its By-laws provide for  indemnification to the fullest extent allowed under
the LBCL.

         No  amendment to  Whitney's  Articles may change any of the  provisions
thereof  relating to the Board of Directors  unless such amendment  receives the
affirmative  vote of 90% of the voting power present at a  shareholders  meeting
for which there is a quorum as described above; provided, however, that such 90%
vote  is  not  required  for  any  amendment  unanimously   recommended  to  the
shareholders by the Board of Directors at a time when there is no Related Person
(as defined below).


                                       22

<PAGE>

         Supermajority and Fair Price Provisions

         Supermajority Provisions. The Articles of Incorporation contain certain
provisions designed to provide safeguards for shareholders when a Related Person
attempts to effect a Business  Combination  (as defined below) with Whitney.  In
general,  a Business  Combination  between  Whitney and a Related Person must be
approved by the affirmative  vote of at least 90% of the voting power of Whitney
present at a  shareholders  meeting,  at which meeting at least 90% of the total
voting  power of Whitney  must be present in person or by proxy to  constitute a
quorum,  unless certain minimum price and procedural  requirements are satisfied
and the  Board  of  Directors  of  Whitney  has the  opportunity  to  state  its
recommendations to the shareholders in a proxy statement.  If these requirements
are  satisfied,  only the  affirmative  vote of  two-thirds  of the voting power
present or  represented  at a  shareholders  meeting of Whitney  (the quorum for
which  would be the  presence  in person or by proxy of a majority  of the total
voting power of Whitney) would be required.

         A "Related Person" is defined as any person who,  together with certain
persons  related  to him or it,  is the  beneficial  owner of 10% or more of the
outstanding  shares of Whitney stock entitled to vote in elections of directors.
The term "beneficial  owner" includes  persons directly or indirectly  owning or
having the right to acquire or vote the stock of Whitney.

         A "Business Combination" includes the following  transactions:  (1) any
merger or consolidation  involving Whitney or its principal subsidiary;  (2) any
sale or lease by Whitney or its  principal  subsidiary  of all or a  substantial
part  of its  assets;  or  (3)  any  sale  or  lease  to  Whitney  or any of its
subsidiaries  of any assets of any Related  Person in exchange for securities of
Whitney or its principal subsidiary.

         Fair Price  Provisions.  There is no requirement that 90% of the voting
power present of Whitney approve a Business Combination between a Related Person
and Whitney if all of the requirements described below are satisfied:

         (1) Minimum Price Requirement.  The cash, or fair market value of other
consideration, to be received per share by shareholders of Whitney in connection
with  the  Business  Combination  must  bear the  same or a  greater  percentage
relationship  to the market price of Whitney Common Stock  immediately  prior to
the  announcement  of such Business  Combination  as the highest per share price
(including brokerage  commissions and soliciting dealers' fees) that the Related
Person  has  theretofore  paid for any of the  shares of  Whitney  Common  Stock
already  owned by it bears to the  market  price  of the  Whitney  Common  Stock
immediately prior to the commencement of the acquisition of Whitney Common Stock
by the Related  Person.  In  addition,  the cash,  or fair market value of other
consideration,  to be  received  per share by  shareholders  of  Whitney in such
Business  Combination  must not be less than (i) the  highest  per  share  price
(including  brokerage  commissions  and  soliciting  dealers'  fees) paid by the
Related Person in acquiring any of its holdings of Whitney Common Stock and (ii)
the  earnings per share of Whitney  Common  Stock for the four full  consecutive
fiscal quarters immediately  preceding the record date for solicitation of votes
on such Business Combination, multiplied by the then price/earnings multiple (if
any) of the Related Person as customarily computed and reported in the financial
community.

         (2) Procedural Requirements. The following procedural requirements must
be satisfied at all times after the Related Person becomes a Related Person: (i)
the Related  Person  shall have taken steps to ensure  that  Whitney's  Board of
Directors  included at all times  representation  by  Continuing  Directors  (as
defined below) proportionate to the stockholdings of Whitney's  shareholders not
affiliated with the Related  Person;  (ii) there shall have been no reduction in
the  rate of  dividends  paid on the  shares  of  Whitney  Common  Stock  unless
otherwise approved by unanimous vote of the directors;  (iii) the Related Person
shall  not have  acquired  any newly  issued  shares of  Whitney  Common  Stock,
directly  or  indirectly,  except  upon  conversion  of  convertible  securities
acquired  by it prior to  becoming a Related  Person or as a result of a prorata
stock  dividend  or stock  split;  and (iv) the  Related  Person  shall not have
acquired any additional shares of Whitney Common Stock or securities convertible
into  Whitney  Common  Stock  except as part of the  transaction  by which  such
Related Person became a Related Person.

         A "Continuing Director" includes a person who was a member of the Board
of Directors  of Whitney  elected by the  shareholders  prior to the time that a
Related  Person  acquired in excess of 10% of the stock of Whitney,  or a person
recommended  to  succeed a  Continuing  Director  by a  majority  of  Continuing
Directors.

                                       23

<PAGE>

         (3) Actions  Prior to  Becoming a Related  Person.  The Related  Person
shall  not have  (i)  received  the  benefit,  directly  or  indirectly  (except
proportionately as a shareholder), of any loans, advances,  guarantees,  pledges
or other financial  assistance or tax credits provided by Whitney;  or (ii) made
any major change in Whitney's  business or equity capital  structure without the
unanimous  approval  of the  Board of  Directors,  in either  case  prior to the
consummation of the Business Combination.

         (4) Proxy Statement.  A proxy statement  responsive to the requirements
of the  Exchange  Act shall be mailed to all  shareholders  of  Whitney  for the
purpose of soliciting shareholder approval of the Business Combination and shall
contain at the front thereof,  in a prominent place, any  recommendations  as to
the  advisability  (or  inadvisability)  of the  Business  Combination  that the
Continuing  Directors,  or any of them,  may  choose  to  state,  and if  deemed
advisable by a majority of the Continuing  Directors,  an opinion of a reputable
investment  banking  firm  as to the  fairness  (or  not) of the  terms  of such
Business  Combination  from the  point of view of  shareholders  other  than the
Related Person.

         (5) Vote Necessary to Amend Articles of Incorporation.  The Articles of
Incorporation provide that the affirmative vote of the holders of 90% or more of
the voting power present at a  shareholders  meeting for which there is a quorum
as  described  above is  required  in order to amend the fair price  provisions,
provided that only a vote of the holders of a majority of the total voting power
of Whitney is  required  if the action to amend is  unanimously  recommended  to
shareholders  by the Board of  Directors if all such  directors  are persons who
would be eligible to serve as Continuing Directors.

         Purposes and Effect of  Supermajority  and Fair Price  Provisions.  The
fair price  provisions  are  designed  to  prevent a  purchaser  from  utilizing
two-tier  pricing and similar  inequitable  tactics in the event of an attempted
takeover  of  Whitney.  In the  absence  of the  supermajority  and  fair  price
provisions,  a purchaser who acquired control of Whitney would be in a position,
by virtue of such control,  to compel  minority  shareholders  to accept a lower
price  or a less  desirable  form of  consideration  than  that  given  to other
shareholders.

         The effect of the  provisions  is to  encourage  any Related  Person or
potential Related Person  interested in a Business  Combination to negotiate the
terms of such  transaction  with the Board of Directors of Whitney  prior to its
acquisition  of a  substantial  amount of the capital  stock of Whitney and in a
context that would provide  adequate time and  information  so that all relevant
considerations   would  receive  the  requisite  attention  and,  if  necessary,
publicity.  The Board of  Directors  of  Whitney  believes  that the  Continuing
Directors  of  Whitney  are  likely  to be more  knowledgeable  than  individual
shareholders  in  assessing  the  business  and  prospects  of  Whitney  and are
accordingly better able to negotiate  effectively with the Related Person. Also,
the provisions  should help to protect those  shareholders  who by choice or for
lack of  adequate  opportunity  did  not  sell  shares  in the  first  step of a
two-tiered offer, by ensuring that a fair price will be paid to the shareholders
in the second step of the  two-tiered  transaction  if, but only if, the Related
Person elects to initiate a second step.

         It should be noted,  however,  that tender  offers are usually  made at
premium  prices  above the  prevailing  market  price of a company's  stock.  In
addition, acquisitions of stock by persons attempting to acquire control through
market  purchases may cause the market price of the stock  temporarily  to reach
levels that are higher than would  otherwise be the case.  Because of the higher
percentage  requirements  for  shareholder  approval of any subsequent  Business
Combination,  and the  possibility  of  having  to pay a  higher  price to other
shareholders  in such a Business  Combination,  it may become  more costly for a
purchaser  to acquire  control of Whitney.  The  Articles of  Incorporation  may
discourage such purchases, particularly those for less than all of the shares of
Whitney,  and may therefore  deprive  holders of the Whitney  Common Stock of an
opportunity  to sell  their  stock  at a  temporarily  higher  market  price.  A
potential  purchaser of stock seeking to obtain  control may also be discouraged
from purchasing stock because a supermajority shareholder vote would be required
in order to change or  eliminate  the fair price  protection  provisions  in the
Articles of Incorporation.

         Although the  supermajority  and fair price  provisions are designed to
assure  fair  treatment  of all  shareholders  in the event of a  takeover,  the
provisions may also adversely affect the ability of shareholders to benefit from
certain transactions that are opposed by the Board of Directors of Whitney.


                                       24

<PAGE>

         In  certain  instances,  the fair  price  provisions,  while  providing
objective pricing  criteria,  could be arbitrary and not indicative of value. In
addition,  a Related Person may be unable, as a practical matter, to comply with
all of the procedural  requirements of the Articles of  Incorporation.  In these
circumstances,  a potential  purchaser  would be forced either to negotiate with
the  Continuing  Directors and offer terms  acceptable to them or to abandon the
proposed Business Combination.

   
         Under the fair price provisions,  in certain circumstances,  a Business
Combination  that  might  be  attractive  to some  shareholders  might  never be
proposed to the shareholders by a Related Person,  or if proposed,  might not be
consummated.  Further,  the provisions  may, under certain  circumstances,  give
holders  of a  minority  of the  voting  power  a  veto  power  over a  Business
Combination  that  the  majority  of  shareholders  may  believe  desirable  and
beneficial.  To  Whitney's  knowledge,  on  December  31,  1997,  directors  and
executive officers of Whitney beneficially owned 2,429,566 shares (approximately
11.7%) of the Whitney Common Stock. Therefore, it may be difficult or impossible
for  a  Related   Person  to  secure  the  necessary supermajority vote without 
management's approval.
    

         Since only the  Continuing  Directors  will have the authority to avoid
the  requirement  of  a  supermajority  shareholder  vote  to  approve  Business
Combinations if otherwise  applicable,  the provisions also may tend to insulate
management  against the  possibility  of removal in the event of a takeover bid.
Further,  if the Related Person were to replace all of the directors who were in
office on the date it became a Related  Person (which it could not be assured of
accomplishing  for at least four years  because of the Board's  classification),
there would be no Continuing  Directors and,  consequently,  the 90% shareholder
vote  requirement  would apply to any Business  Combination,  unless the minimum
price and procedural requirements were satisfied.

         Federal   securities  laws  and  regulations   applicable  to  Business
Combinations govern the disclosure required to be made to minority  shareholders
in order to consummate  certain  Business  Combinations.  However,  the laws and
regulations do not assure that the terms of a Business  Combination will be fair
from  a  financial   standpoint.   The  LBCL   provides   that,   under  certain
circumstances, the affirmative vote of the holders of at least 80% of the voting
power of a Louisiana  corporation is necessary in order to approve certain types
of business  combinations with a related party unless the shareholders receive a
price for their shares as set forth in the LBCL and certain other conditions are
met. While the fair price  protection  provisions of the LBCL would apply to any
Business  Combination  involving  Whitney  and a  Related  Party,  the  Board of
Directors of Whitney  believes that the fair price provisions in the Articles of
Incorporation provide additional assurance that the shareholders of Whitney will
receive  an  equitable  price for  their  shares if a  Business  Combination  is
consummated.

         Considerations in Change of Control

         The LBCL authorizes the Board of Directors of Whitney, when considering
any proposal to acquire  control of Whitney,  to take into account,  among other
enumerated factors and any other factors the Board deems relevant, the interests
of Whitney's employees,  creditors and the communities in which Whitney conducts
its business, as well as purely financial interests of Whitney's shareholders.

         Amendment of Articles of Incorporation

         Except for the 90% vote required to amend any provision of the Articles
of  Incorporation  relating  to  the  Board  of  Directors  of  Whitney  or  the
supermajority and fair price provisions  contained therein, the affirmative vote
of at least a majority of the total voting power of Whitney (i.e., a majority of
the  outstanding  shares of Whitney Common  Stock),  at a meeting the quorum for
which is the  presence in person or by proxy of a majority  of the total  voting
power, is required to amend the Articles of  Incorporation.  See " -- Directors"
and " -- Supermajority and Fair Price Provisions," above.

         Amendment of By-laws

         Whitney's By-laws may be amended or repealed by the affirmative vote of
a majority of the Board of Directors of Whitney or by the affirmative vote of at
least a majority of the votes cast at a meeting of the shareholders of Whitney.


                                       25

<PAGE>

         Shareholders Meetings

         Shareholders  holding  not  less  than 20% of the  outstanding  Whitney
Common Stock may require Whitney to call a meeting of its shareholders.

         Louisiana Control Share Acquisition Statute

         The LBCL Control  Share  Acquisition  Statute  provides that any shares
acquired by a person or group (an "Acquiror") in an acquisition that causes such
person or group to have the power to direct the  exercise of voting power in the
election of directors  in excess of 20%,  33-1/3% or 50%  thresholds  shall have
only such voting  power as shall be accorded by the holders of all shares  other
than Interested Shares (as defined below) at a meeting called for the purpose of
considering  the voting  power to be accorded  to shares  held by the  Acquiror.
"Interested Shares" include all shares as to which the Acquiror,  any officer of
Whitney  and any  director  of Whitney  who is also an  employee  of Whitney may
exercise or direct the exercise of voting power. If a meeting of shareholders is
held to  consider  the  voting  rights to be  accorded  to an  Acquiror  and the
shareholders  do not vote to accord  voting  rights to such shares,  Whitney may
have the right to redeem the shares held by the  Acquiror  for their fair market
value.

Comparison of Whitney Common Stock and Bank Common Stock

         The  following  comparison  of the rights of holders of Whitney  Common
Stock and Bank Common Stock is based on current terms of the governing documents
of the  respective  companies  and on the  current  provisions  of the  LBCL and
federal law  applicable to Bank Common Stock.  Although  Whitney Common Stock is
governed by applicable  provisions of the LBCL and Bank Common Stock is governed
by OTS  regulations,  the rights of holders of Bank Common  Stock and holders of
Whitney  Common  Stock are similar in many  respects:  (i) each  shareholder  is
entitled to one vote for each share held on all matters  submitted  to a vote of
shareholders  and neither is entitled to cumulative  voting rights in connection
with the election of directors; (ii) each shareholder is entitled to receive pro
rata any assets distributed to the shareholders upon liquidation, dissolution or
a winding up of the affairs of their  respective  companies;  and (iii)  neither
Whitney's nor the Bank's  shareholders  have preemptive rights to acquire shares
of stock issued by their respective  companies.  Although it is impracticable to
note all the differences  between the applicable  governing documents of Whitney
and the Bank,  the following is intended to be a summary of certain  significant
differences between the rights of holders of Whitney Common Stock and the rights
of holders of Bank Common Stock.

         Boards of Directors.  Whitney's Articles of Incorporation provide for a
board of directors  consisting  of not less than five nor more than  twenty-five
members divided into five classes,  with directors serving  five-year  staggered
terms  expiring  for each class of directors at  successive  annual  meetings of
shareholders.  The Bank's  Board  consists  of not less than seven nor more than
fifteen  members,  and the number of directors is currently  fixed in the Bank's
Bylaws at thirteen.  The Bank's  Board is divided  into three  classes as nearly
equal in number as  possible,  with the members of each class  being  elected by
ballot at  successive  annual  meetings for terms  expiring in three years.  The
directors of Whitney must also be shareholders of Whitney;  the Bank's directors
do not have to be shareholders of the Bank.

         Removal of Directors.  Whitney's Articles of Incorporation provide that
a director  may be removed  from  office,  with or  without  cause,  only by the
affirmative  vote of 90% of the voting  power  present  at a special  meeting of
shareholders  called for that purpose at which a "quorum" is present. A "quorum"
for these purposes means the presence,  in person or by proxy, of the holders of
90% of the total voting power of Whitney.

         The Bank's  Bylaws state that its directors may be removed for cause by
the  affirmative  vote of a  majority  of shares  then  entitled  to vote in the
election  of  directors  at a special  meeting of  shareholders  called for that
purpose.

         Issuance of Shares to Directors,  Officers or Controlling Shareholders.
The Bank's Charter provides that,  except for shares issuable in connection with
the  conversion  of the Bank from  mutual to stock  form of  capitalization,  no
shares of common stock (including  shares issuable upon conversion,  exchange or
exercise  of other  securities)  shall be issued,  directly  or  indirectly,  to
officers,  directors or controlling  persons of the Bank other than as part of a
general

                                       26

<PAGE>

public  offering or as qualifying  shares to a director,  unless the issuance or
the plan under which they would be issued has been approved by a majority of the
total votes eligible to be cast at a legal meeting.

         Whitney's Articles of Incorporation do not contain a similar provision,
and issuances of shares of Whitney Common Stock to its  directors,  officers and
controlling persons is not restricted in this manner.

         Nomination  of Directors.  The Bank's Bylaws  provide that its Board of
Directors shall act as a nominating  committee for selecting management nominees
for  election  as  directors.  The  management  nominees  must  be  posted  in a
conspicuous  place in each office of the Bank at least 20 days prior to the date
of the annual meeting,  and no nominations for director except those made by the
nominating  committee  shall be voted upon at the annual  meeting  unless  other
nominations by  shareholders  are made in writing and delivered to the secretary
of the Bank at least  five days prior to the date of the  annual  meeting.  Upon
delivery,  such shareholder nominations must be posted in a conspicuous place in
each office of the Bank. If the nominating committee shall fail or refuse to act
at least 20 days prior to the annual  meeting,  nominations  for director may be
made at the annual  meeting  by any  shareholder  entitled  to vote and shall be
voted upon.

         Whitney's   Articles  of  Incorporation  and  By-laws  do  not  contain
provisions  restricting a shareholder's right to nominate directors for election
at an annual meeting.

         Preferred  Stock.  The Board of  Directors  of the Bank is  authorized,
without action of its  shareholders,  to issue Bank  preferred  stock (the "Bank
Preferred Stock") from time to time and to fix the preferences,  limitations and
relative  rights  thereof,  as well as to establish  and fix  variations  in the
relative  rights  as  between  holders  of any one or more  series  of such Bank
Preferred  Stock.  Shares of Bank Preferred  Stock that are authorized  would be
available for issuance in connection with the  acquisition of other  businesses,
infusion of capital, or for other lawful corporate  purposes,  at the discretion
of the Board of  Directors.  The Board of Directors  could issue Bank  Preferred
Stock to a person or persons who would support  management in connection  with a
proxy  contest  to  replace  an  incumbent  director  or  in  opposition  to  an
unsolicited tender offer. As a result,  such proposals or tender offers could be
defeated  even  though  favored by the  holders of a majority of the Bank Common
Stock.  The Bank's Charter  authorizes the issuance of 1,000,000  shares of Bank
Preferred Stock, none of which are currently outstanding.

         Whitney's  Articles of  Incorporation  do not authorize the issuance of
preferred stock.

         Special Meetings of Shareholders.  Under the LBCL,  special meetings of
Whitney's shareholders may be called by the President or the Board of Directors,
or upon the written request of any  shareholder or  shareholders  holding in the
aggregate  one-fifth  of the total voting  power of Whitney.  The Bank's  Bylaws
provide that,  unless  otherwise  prescribed  by regulation of the OTS,  special
meetings of its shareholders may be called by the President, the Chairman of the
Board or the Board of Directors,  or upon the written request of any shareholder
or shareholders holding in the aggregate one-tenth of the total voting power.

         Business  Conducted  at Annual  Meetings  of  Shareholders.  The Bank's
Bylaws  provide  that  any  business  to be taken up at the  annual  meeting  of
shareholders shall be stated in writing and filed with the Secretary of the Bank
at least five days before the date of the annual  meeting,  and all  business so
stated,  proposed and filed shall be  considered at the annual  meeting;  but no
other proposal shall be acted upon at the annual  meeting.  Any  shareholder may
make any other  proposal at the annual meeting and the same may be discussed and
considered,  but unless  stated in writing and filed with the Secretary at least
five days before the meeting,  such proposal shall be laid over for action at an
adjourned,  special or annual  meeting of  shareholders  taking place 30 days or
more thereafter.

         Whitney's  Articles  of  Incorporation  and  By-laws  do not  contain a
similar provision,  and all matters properly brought before an annual meeting in
accordance with the LBCL may be considered and voted upon at such meeting.

         Amendment to Charter and Bylaws. Except in connection with the Board of
Directors'  creation of classes of Bank Preferred  Stock, no amendment or repeal
of the Bank's  Charter may be made  unless such action is first  proposed by the
Board of Directors of the Bank,  then  preliminarily  approved by the OTS, which
preliminary approval may be granted by the OTS pursuant to regulations specified
in pre-approved charter amendments, and thereafter approved by

                                       27

<PAGE>


the shareholders by a majority of the total votes eligible to be cast at a legal
meeting.  The  Bank's  Bylaws  may  be  amended  in  a  manner  consistent  with
regulations  of the OTS at any  time by a  majority  vote of the  full  Board of
Directors  or by a majority  vote of the votes cast by the  shareholders  of the
Bank at any legal meeting.

         Whitney's  Articles  of  Incorporation  and  By-laws  may be amended as
described  above  under the heading "  Description  of Whitney  Common  Stock --
Amendment of Articles of  Incorporation"  and " - Description  of Whitney Common
Stock -- Amendment of By-laws."

         Supermajority  Vote  Requirements.  Whitney's Articles of Incorporation
contain  supermajority  shareholder  voting  provisions  for  certain  "business
combinations." Whitney's provisions are triggered if any shareholder or group of
shareholders  acquires  10% of the  total  voting  power  of  Whitney,  and  the
supermajority vote that may be required to approve such a "business combination"
or to amend these  provisions in Whitney's  Articles of  Incorporation is 90% of
the total voting power of Whitney.

         Neither  the  Bank's  Charter  nor   applicable   federal  law  contain
supermajority   vote  requirements  for  business   combinations,   except  that
applicable  OTS  regulations  impose  a  two-thirds  vote  requirement  for most
mergers.

         Indemnification  Rights.  Whitney's  Articles of Incorporation  provide
that, in addition to any rights to  indemnification  that a person might have by
law or otherwise, Whitney shall indemnify any person who was or is a party or is
threatened to be made a party to any action,  suit or proceeding,  including any
action by or in the right of Whitney,  by reason of the fact that he is or was a
director,  officer,  employee or agent of  Whitney,  or is or was serving at the
request of Whitney as a director, officer, employee or agent of another business
or enterprise, against expenses, including attorneys' fees, judgments, fines and
amounts  paid  in  settlement,  actually  and  reasonably  incurred  by  him  in
connection with such action,  suit or proceeding,  if he acted in good faith and
in a manner  he  reasonably  believed  to be in,  or not  opposed  to,  the best
interests of Whitney and, with respect to any criminal action or proceeding, had
no reasonable cause to believe his conduct was unlawful.  In the case of actions
by or in the right of Whitney,  the  indemnification  provided to  employees  or
agents is limited to expenses  not  exceeding,  in the  judgment of the Board of
Directors, the estimated expense of litigating the action to conclusion, but the
Board of Directors is authorized in its discretion to pay or provide  additional
indemnity in particular  cases and, as to directors and officers,  the indemnity
in such cases is  similarly  limited if it would  permit  indemnification  of an
individual  for (i) the results of his willful or intentional  misconduct,  (ii)
breach of duty of  loyalty to  Whitney  or the  entity  otherwise  served by the
individual or (iii) engaging in a transaction in which the individual derived an
improper personal benefit.  No indemnification may be made in respect of a claim
in which the person  seeking  indemnity  shall have been  adjudged by a court of
competent jurisdiction to be liable for willful or intentional misconduct in the
performance  of its  duties to Whitney  unless  and only to the extent  that the
court  shall  determine  upon  application  that,  despite the  adjudication  of
liability but in view of all of the  circumstances of the case, he is fairly and
reasonably  entitled to indemnity  for such  expenses  that the court shall deem
proper.

         The Bank's  Charter  and Bylaws do not provide  indemnification  to its
directors and officers;  however,  under  applicable  federal law and the Bank's
indemnification plan, the Bank is required to indemnify its directors,  officers
and employees  against whom any judicial or administrative  proceeding,  whether
civil, criminal or otherwise, is brought or threatened because that person is or
was  a  director,   officer  or  employee  of  the  Bank,   subject  to  certain
requirements.  Prior to making  any such  indemnification,  the Bank must  first
provide the OTS with at least 60 days' advance  notice,  and no  indemnification
may be made if the OTS objects  thereto  during the notice  period.  The Bank is
permitted  to obtain,  and has  obtained,  insurance to protect the Bank and its
directors,  officers  and  employees  from  potential  claims  (other than those
involving willful or criminal misconduct). The Bank is also permitted to advance
the payment of reasonable costs and expenses, subject to certain conditions.

   
         Liquidation  Accounts. In  connection  with the  conversions  from  the
mutual to the stock form of ownership of its predecessor companies, the Bank was
required  to  establish  "liquidation  accounts"  for  the  benefit  of  certain
depositors at the time of such conversions.  The liquidation accounts grant such
depositors who have continued to maintain their savings accounts at the Bank the
right to a  priority  distribution  from the  liquidation  accounts  before  any
distribution can be made with respect to the Bank Common Stock in the event of a
complete  liquidation of the Bank (and only in such event).  The Merger does not
constitute a complete liquidation and will not trigger a distribution from the
    

                                       28

<PAGE>

   
liquidation accounts. Upon consummation of the  Merger, the liquidation accounts
will  be  maintained  by  Whitney Bank. For  further  information  regarding the
liquidation  accounts, see  Note  10  to  the  Bank's  consolidated  financial
statements set forth in the Bank's 1996 Annual Report  to Shareholders, which is
incorporated  herein   by  reference  and   accompanies  this  Proxy  Statement-
Prospectus.  See "Documents Incorporated by Reference."
    

                                  LEGAL MATTERS

         Milling,  Benson,  Woodward,  Hillyer,  Pierson & Miller,  L.L.P.,  New
Orleans,  Louisiana,  has rendered its opinion that the shares of Whitney Common
Stock to be issued in connection  with the Merger have been duly authorized and,
if and when issued pursuant to the terms of the Plan of Merger,  will be validly
issued,  fully paid and non-assessable.  Such firm will also opine as to certain
other legal matters relating to the Merger.

         Elias,  Matz,  Tiernan  & Herrick  L.L.P.,  Washington,  D.C.,  special
counsel to the Bank,  will render an opinion on behalf of the Bank as to certain
legal matters relating to the Merger.

                                     EXPERTS

         The consolidated  financial statements of the Bank and its subsidiaries
at  December  31,  1996 and 1995,  and for each of the three years in the period
ended  December  31,  1996,  have been  incorporated  in this  Proxy  Statement-
Prospectus  by  reference  in reliance on the report of KPMG Peat  Marwick  LLP,
independent certified public accountants,  incorporated herein by reference, and
upon the authority of such firm as experts in accounting and auditing.

         The consolidated  financial  statements of Whitney and its subsidiaries
as of  December  31, 1996 and 1995 and for each of the three years in the period
ended  December 31, 1996  incorporated  by  reference  in this Proxy  Statement-
Prospectus  have  been  audited  by  Arthur  Andersen  LLP,  independent  public
accountants,  as indicated in their report with respect thereto and have been so
incorporated by reference in reliance upon the authority of such firm as experts
in accounting and auditing in giving such report.

         Arthur  Andersen LLP will also render a tax opinion with respect to the
Merger, a form of which is filed as an exhibit to the Registration  Statement of
which this Proxy Statement-Prospectus forms a part.

                              SHAREHOLDER PROPOSALS

         To be eligible for inclusion in the Bank's proxy materials  relating to
the Bank's Annual Meeting of  Shareholders to be held in 1998 (unless the Merger
is consummated prior to the Annual Meeting), a shareholder proposal was required
to be received by the Bank by no later than  November 25, 1997.  No  shareholder
proposal was received by such date.

                                  OTHER MATTERS

         At the time of the preparation of this Proxy Statement-Prospectus,  the
Bank had not been informed of any matters to be presented by or on behalf of the
Bank or its  management for action at the Meeting other than those listed in the
Notice of Special Meeting of Shareholders  and referred to herein.  If any other
matters  properly come before the Meeting or any  adjournments or  postponements
thereof,  the  persons  named in the  enclosed  proxy will vote on such  matters
according to their best judgment.

         Shareholders  are urged to sign the enclosed proxy,  which is solicited
on behalf of the Board of  Directors  of the Bank,  and return it at once in the
enclosed envelope.

                                  BY ORDER OF THE BOARD OF DIRECTORS OF THE BANK

   
                                  Edward J. Patterson, Jr., Secretary

March 10, 1998
    


                                       29

<PAGE>

                                   APPENDIX A
                          Agreement and Plan of Merger



<PAGE>

                          AGREEMENT AND PLAN OF MERGER

         THIS  AGREEMENT AND PLAN OF MERGER  ("Agreement")  is made November 20,
1997, between Whitney Holding Corporation ("Whitney"),  a Louisiana corporation,
and Whitney National Bank ("WNB"),  a national banking  association,  on the one
hand, and Meritrust Federal Savings Bank ("Bank"),  a federally  chartered stock
savings  bank,  on the other hand.  Whitney,  WNB and Bank shall be  hereinafter
collectively referred to as the "Constituent Corporations".

                                    Preamble

         WHEREAS,  the boards of  directors  of Whitney,  WNB and Bank have each
determined  that it is desirable and in the best  interests of their  respective
corporations and their  shareholders  that Bank merge into WNB (the "Merger") on
the terms and  subject to the  conditions  set forth in this  Agreement  and the
Merger Agreement (as hereinafter defined).

         NOW THEREFORE,  in  consideration of the  representations,  warranties,
covenants and agreements herein contained, the parties hereto agree as follows:

         Section 1.        The Merger and Closing

         1.01.  Merger.  (a) Promptly  after  execution of this  Agreement,  the
Boards of Directors of WNB and Bank will  execute the merger  agreement  annexed
hereto as Exhibit  1.01(a) (the "Merger  Agreement"),  pursuant to which, on the
terms set forth  herein  and  subject to the  conditions  set forth in Section 6
hereof (including without limitation the satisfaction of all notice requirements
of 12 C.F.R.  563.22(b)),  Bank will merge with and into WNB, which shall be the
surviving bank.

                  (b) Effects of Merger.  The Merger  shall have the effects set
forth in the national  banking laws and  regulations  and the regulations of the
Office of Thrift Supervision (the "OTS"). Without limiting the generality of the
foregoing,  and subject  thereto,  at the effective time of the Merger,  all the
property  and  assets,  rights,   privileges  and  all  debts,  liabilities  and
obligations of Bank will become the property and assets, rights,  privileges and
debts, liabilities and obligations of WNB as the surviving bank in the Merger.

         1.02.  The  Closing.  The  "Closing" of the  transactions  contemplated
hereby will take place in the Board Room of Whitney, 228 St. Charles Avenue, New
Orleans,  Louisiana  70130,  at 9:00  a.m.,  New  Orleans  time,  on a  mutually
agreeable date as soon as practicable  following  satisfaction of the conditions
set forth in  subparagraphs  (a), (b) and (d) of Section  6.01 hereof,  or if no
date has been agreed to, on any date  specified  by any party to the others upon
10 days notice following satisfaction of such conditions.  The date on which the
Closing occurs is herein called the "Closing  Date". If all conditions set forth
in Section 6 hereof are satisfied or waived by the party  entitled to grant such
waiver,  at the Closing (a) the Constituent  Corporations  shall each provide to
the other such proof of satisfaction of the conditions set forth in Section 6 as
the  party  whose   obligations  are  conditioned  upon  such  satisfaction  may
reasonably  request,  (b) the  certificates,  letters,  opinions and other items
required by Section 6 shall be delivered,  (c) the  appropriate  officers of the
parties shall execute,  deliver and acknowledge the Merger Agreement and (d) the
parties  shall  take  such  further  action as is  required  to  consummate  the
transactions  contemplated by this Agreement and the Merger Agreement. If on any
date  established  for the Closing all  conditions  in Section 6 hereof have not
been satisfied or waived by the party  entitled to grant such waiver,  then such
party,  on one or more  occasions,  may  declare a delay of the  Closing of such
duration,  not exceeding 10 business days, as the declaring  party shall select,
but no such delay shall extend beyond the date set forth in subparagraph  (c) of
Section 7.01,  and no such delay shall  interfere with the right of any party to
terminate this Agreement pursuant to Section 7.

         1.03.   The  Effective  Date  and  Time.   Immediately   following  (or
concurrently with) the Closing, the Merger Agreement shall be filed and recorded
with the Office of the  Comptroller  of the  Currency  and the  Merger  shall be
effective at the date and time  specified in the Merger  Agreement.  The date on
which and the time at which the Merger becomes  effective are herein referred to
as the "Effective Date" and the "Effective Time," respectively.


                                       A-1

<PAGE>

         1.04. Surviving Corporation.  The Articles of Association and Bylaws of
WNB as in effect  immediately prior to the Effective Time shall remain unchanged
by reason of the Merger and shall be the Articles of  Association  and Bylaws of
WNB as the  surviving  entity in the Merger.  The  directors and officers of WNB
immediately  prior to the Effective  Time shall be the directors and officers of
WNB as the surviving entity in the Merger until the earlier of their resignation
or removal or until their respective  successors are duly elected and qualified,
as the case may be.  Each share of capital  stock of WNB issued and  outstanding
immediately prior to the Effective Time shall remain issued and outstanding from
and  after  the  Effective  Time and  shall be the  capital  stock of WNB as the
surviving entity in the Merger.  At the Effective Time the shares of Bank Common
Stock (as hereinafter defined) shall be converted as set forth in Section 2.

         1.05. Tax Consequences.  It is the intention of the parties hereto that
the Merger  shall  constitute  a  reorganization  within the  meaning of Section
368(a) of the Internal  Revenue Code of 1986, as amended (the "Code"),  and that
this  Agreement  shall  constitute  a "plan of  reorganization"  for purposes of
Section 368 of the Code.

         Section 2.        Conversion of Stock of Bank

         2.01.  Conversion.  Subject to the provisions of this Section 2, at the
Effective  Time,  by virtue of the Merger and  without any action on the part of
the holders thereof,  the shares of Bank common stock, par value $1.00 per share
("Bank Common Stock") shall be converted as follows:

                  (a) Exchange Ratio. (i) Except for shares of Bank Common Stock
held by Bank as treasury  shares (other than in a fiduciary  capacity),  if any,
which shall by reason of the Merger be canceled ("Treasury Shares"), and subject
to the  provisions of subsection  2.01(b)  relating to fractional  shares,  each
issued and  outstanding  share of Bank Common Stock shall be converted  into and
become that number of shares of Whitney  common  stock,  no par value  ("Whitney
Common  Stock"),  that is equal to (A) if the Average  Whitney  Market Price (as
hereinafter  defined) is greater  than or equal to $46.00 and less than or equal
to $54.00,  the  quotient  (rounded to the  nearest  thousandth)  determined  by
dividing (x) $73.00 by (y) the Average Whitney Market Price,  (B) if the Average
Whitney  Market  Price is less than  $46.00,  1.587  shares,  (C) if the Average
Whitney   Market   Price  is  greater  than  $54.00,   1.352   shares,   or  (D)
notwithstanding any of the foregoing, if prior to the Effective Date (x) Whitney
issues a press  release  announcing  that it is  negotiating  or has  executed a
letter of intent or definitive merger or other acquisition agreement as a result
of which Whitney will cease to be an  independent,  publicly  traded company and
(y) Whitney has not thereafter issued a press release announcing the termination
of such  negotiations,  letter of intent or  definitive  agreement  prior to the
Closing, 1.352 shares (the "Exchange Ratio").

                        (ii)  Average Whitney Market Price. The "Average Whitney
Market Price" shall be the average of the closing per share  trading  prices  of
Whitney Common Stock(adjusted appropriately for any stock split, stock dividend,
recapitalization, reclassification or similar transaction which is effected, or
for which a record date  occurs) on the twenty (20) trading days  preceding  the
fifth trading day immediately prior to the Effective Date, as reported in the 
Wall Street Journal (corrected for typographical errors) (the "Pricing Period").

                  (b) Fractional  Shares.  In lieu of the issuance of fractional
shares of Whitney Common Stock,  each shareholder of Bank, upon surrender of his
or her certificate that immediately prior to the Effective Time represented Bank
Common Stock, other than Treasury Shares,  shall receive a cash payment (without
interest)  equal to the fair market value at the Effective  Time of any fraction
of a share of Whitney  Common  Stock to which such holder  would be entitled but
for this provision.  For purposes of calculating  such payment,  the fair market
value of a fraction of a share of Whitney  Common  Stock at the  Effective  Time
shall be such fraction multiplied by the Average Whitney Market Price.

                  (c) Exchange of  Certificates.  After the Effective Time, each
holder of an outstanding certificate or certificates  theretofore representing a
share or shares of Bank Common Stock, other than Treasury Shares, upon surrender
thereof to the  exchange  agent  selected  by Whitney  (the  "Exchange  Agent"),
together  with  duly  executed   transmittal   materials  provided  pursuant  to
subsection  2.01(e) or upon compliance by the holder or holders thereof with the
procedures  of the  Exchange  Agent with  respect to lost,  stolen or  destroyed
certificates,  shall be entitled to receive in exchange therefor any payment due
in lieu of fractional shares and a certificate or certificates  representing the
number

                                       A-2

<PAGE>

of whole shares of Whitney Common Stock into which such holder's  shares of Bank
Common Stock were converted.  Until so surrendered,  each outstanding Bank stock
certificate shall be deemed for all purposes,  other than as provided below with
respect to the payment of dividends or other  distributions  (if any) in respect
of Whitney  Common  Stock,  to  represent  the number of whole shares of Whitney
Common  Stock into which such  holder's  shares of Bank Common  Stock shall have
been converted.  Whitney may, at its option, refuse to pay any dividend or other
distribution  to  holders  of  unsurrendered   Bank  stock   certificates  until
surrendered; provided, however, that upon the surrender and exchange of any Bank
stock  certificates  there shall be paid, to the extent not previously  paid, to
the record holders of the Whitney stock certificates issued in exchange therefor
the amount,  without interest,  of accumulated  dividends and distributions,  if
any,  which have become  payable  with  respect to the number of whole shares of
Whitney  Common  Stock into which the shares of Bank  Common  Stock  theretofore
represented by such  certificates  shall have been exchanged.  The provisions of
this subsection 2.01(c) are intended for the benefit of the holders of shares of
Bank  Common  Stock  and  shall be  enforceable  by such  holders  and each such
holder's heirs, representatives and successors.

                  (d) Deposit.  As of the Effective Time,  Whitney shall deposit
or cause to be deposited with the Exchange Agent (i)  certificates  representing
the  shares of  Whitney  Common  Stock  and (ii) the cash in lieu of  fractional
shares to be issued and paid,  as the case may be, in exchange  for  outstanding
shares of Bank Common Stock pursuant to this Section 2.

                  (e) Transmittal Materials.  Promptly after the Effective Time,
Whitney shall send or cause to be sent to each former  shareholder  of record of
Bank  at  the  Effective  Time  transmittal  materials  for  use  in  exchanging
certificates of Bank Common Stock for certificates of Whitney Common Stock.

                  (f) Bank Options. Each Bank Option under the Bank Option Plans
(as such terms are  hereinafter  defined) that is  outstanding  at the Effective
Time shall be converted into an option to acquire shares of Whitney Common Stock
in the manner set forth in Section 5.21 of this Agreement.

         2.02. Closing Transfer Books. At the Effective Time, the stock transfer
books of Bank shall be closed and no  transfer  of shares of Bank  Common  Stock
shall be made  thereafter.  All shares of Whitney  Common Stock issued,  and any
fractional  share  payments  paid upon  surrender  for exchange of  certificates
representing shares of Bank Common Stock in accordance with this Section 2 shall
be deemed to have been issued in full  satisfaction of all rights  pertaining to
the shares of Bank Common Stock theretofore represented by such certificates.

         Section 3.        Representations and Warranties of Bank

         Bank represents and warrants to Whitney and WNB that, as of the date of
this  Agreement  and  as of  the  Closing  Date,  except  as  set  forth  in the
corresponding  subsection of the Schedule of Exceptions (as hereinafter  defined
in subsection 5.01(b)):

         3.01.  Organization and  Qualification.  Bank is a federally  chartered
stock savings bank, duly organized,  validly existing and in good standing under
the laws of the  United  States and has all of its  offices  within the State of
Louisiana. Bank has all requisite corporate power and authority to own and lease
its property and to carry on its business as it is currently being conducted and
to  execute  this  Agreement  and the Merger  Agreement  and to  consummate  the
transactions  contemplated  hereby and  thereby,  and is  qualified  and in good
standing as a foreign  corporation in all  jurisdictions in which the failure to
so qualify  would have a Material  Adverse  Effect (as  hereinafter  defined) on
Bank's financial condition,  results of operations or business. For the purposes
of this  Agreement,  "Material  Adverse Effect" shall mean, with respect to Bank
and the Subsidiaries (as hereinafter defined), any effect or effects which taken
individually  or in the  aggregate  are  material  and adverse to its  financial
condition,  results of operations or business,  provided, however, that Material
Adverse Effect shall not be deemed to include (a) any change occurring after the
date hereof in any federal or state law,  rule,  or  regulation  or in generally
accepted  accounting   principles  ("GAAP"),   which  change  affects  federally
chartered savings  institutions  generally,  (b) expenses incurred in connection
with this  Agreement  and the  transactions  contemplated  hereby (not to exceed
$800,000  in the  aggregate),  (c)  payments  to  executive  officers  or  other
employees of Bank pursuant to agreements between the Bank and such persons, true
and complete  copies of which have been  delivered to Whitney prior to execution
of  this  Agreement,  (d)  actions  or  omissions  of Bank  either  specifically
permitted  under  this  Agreement  or taken  with the prior  written  consent of
Whitney in

                                       A-3

                                     <PAGE>

contemplation of the transactions  contemplated  hereby, and (f) any effect with
respect to Bank caused, in whole or in part, by Whitney or WNB.

         3.02. Capital Stock;  Other Interests.  The authorized capital stock of
Bank consists of 5,000,000  shares of Bank Common Stock, of which 774,176 shares
are issued and  outstanding  and no shares are held in its treasury.  All issued
and  outstanding  shares of capital stock of Bank have been duly  authorized and
are  validly  issued,  fully paid and  non-assessable.  Other  than  outstanding
options to acquire up to an  aggregate  of 69,000  shares of Bank  Common  Stock
("Bank  Options")  granted  pursuant  to the  Bank's  1993  Key  Employee  Stock
Compensation  Program  and 1993  Directors'  Stock  Option  Plan  ("Bank  Option
Plans"),  Bank does not have any  outstanding  stock  options or other rights to
acquire any shares of its capital  stock or any security  convertible  into such
shares,  nor does it have any obligation or commitment to issue, sell or deliver
any of the  foregoing or any shares of its capital stock (other than pursuant to
such options).  There are no agreements among Bank and Bank's shareholders or by
which Bank is bound,  or to Bank's  knowledge  among  shareholders of Bank, with
respect to the voting or transfer of Bank Common Stock or granting  registration
rights to any holder thereof.  The outstanding capital stock of Bank and each of
its  Subsidiaries  (hereinafter  defined) has been issued in compliance with all
legal requirements and in compliance with any preemptive or similar rights. Bank
does not have any  subsidiaries  or any direct or  indirect  ownership  interest
exceeding 5% in any firm, corporation,  partnership or other entity, except that
Bank owns 100% of the issued and  outstanding  stock of First Federal  Services,
Inc.  and  Atchafalaya  Services,   Inc.  (the  "Subsidiaries").   Both  of  the
Subsidiaries are inactive,  have no employees and have no assets or liabilities,
contingent  or  otherwise.  Each  of  Subsidiaries  is duly  organized,  validly
existing and in good standing under the laws of the State of Louisiana.

         3.03. Corporate Authorization; No Conflicts. Subject to the approval of
this  Agreement  and  the  Merger  Agreement  by the  shareholders  of  Bank  in
accordance with applicable federal law, all corporate acts and other proceedings
required of Bank for the due and valid  authorization,  execution,  delivery and
performance of this Agreement and the Merger  Agreement and  consummation of the
Merger have been validly and appropriately  taken.  Subject to their approval by
the  shareholders  of Bank and to such  regulatory  approvals as are required by
law,  this  Agreement  and the Merger  Agreement  are legal,  valid and  binding
obligations  of Bank and are  enforceable  against Bank in  accordance  with the
respective  terms hereof and thereof,  except that enforcement may be limited by
(i)   bankruptcy,   insolvency,   reorganization,    moratorium,   receivership,
conservatorship,  and  other  laws now or  hereafter  in effect  relating  to or
affecting  the  enforcement  of  creditors'  rights  generally  or the rights of
creditors of insured depository institutions, (ii) general equitable principles,
and (iii)  laws  relating  to the  safety and  soundness  of insured  depository
institutions,  and  except  that no  representation  is made as to the effect or
availability of equitable  remedies or injunctive relief  (regardless of whether
such  enforceability is considered in a proceeding in equity or at law). Neither
the  execution,  delivery  or  performance  of  this  Agreement  or  the  Merger
Agreement,  nor the  consummation  of the  transactions  contemplated  hereby or
thereby will (i) violate,  conflict with, or result in a breach of any provision
of, (ii)  constitute a default (or an event which,  with notice or lapse of time
or both, would  constitute a default) under,  (iii) result in the termination of
or accelerate the performance required by, or (iv) result in the creation of any
lien, security interest,  charge or encumbrance upon any of Bank's properties or
assets under,  any of the terms,  conditions or provisions of Bank's  charter or
bylaws or any material note, bond,  mortgage,  indenture,  deed of trust, lease,
license,  agreement or other instrument or obligation to or by which Bank or any
of Bank's  assets is bound;  or violate  any order,  writ,  injunction,  decree,
statute,  rule or regulation of any governmental  body applicable to Bank or any
of Bank's assets.

         3.04. Financial  Statements,  Reports and Proxy Statements.(a) Bank has
delivered to Whitney true and complete copies of (i) the consolidated statements
of financial condition as of December 31, 1995 and December 31, 1996 of Bank and
its  consolidated   subsidiaries,   the  related   consolidated   statements  of
operations,  stockholders'  equity and cash flows for the respective  years then
ended,  the related  notes  thereto,  and the report of its  independent  public
accountants with respect  thereto,  as presented in Bank's Annual Report on Form
10-KSB for the fiscal year ended  December 31, 1996 filed with the OTS under the
Securities Exchange Act of 1934, as amended (the "Exchange Act"), (collectively,
the  "Financial  Statements"),   (ii)  the  unaudited  statements  of  financial
condition  as of  September  30,  1997 and  September  30,  1996 of Bank and its
consolidated  subsidiaries,  and the related unaudited  statements of operations
and cash flows for the  nine-month  periods  then ended,  as presented in Bank's
Quarterly  Reports  on Form  10-QSB  filed with the OTS under the  Exchange  Act
(collectively,  the "Interim Financial Statements"),  (iii) all thrift financial
reports,  including all amendments  thereto,  made to the OTS since December 31,
1993 by Bank,  (iv) Bank's Annual Report to  Shareholders  for 1995 and 1996 and
all subsequent  Quarterly Reports to Shareholders,  (vi) all offering  circulars
filed

                                       A-4

<PAGE>

with the OTS and all reports filed by Bank with the OTS since  December 31, 1993
pursuant  to  Section  13 or 15(d) of the  Exchange  Act,  and  (vii)  all Proxy
Statements and other  communications  disseminated to Bank's shareholders or the
shareholders of any of its subsidiaries at any time since December 31, 1993.

                  (b) The Financial  Statements  and, except as indicated in the
notes thereto or, as permitted by Form 10-QSB and the rules and  regulations  of
the OTS,  the  Interim  Financial  Statements,  have  been  (and  all  financial
statements  delivered to Whitney as required by this Agreement will be) prepared
in conformity with GAAP applied on a basis  consistent  with prior periods,  and
present fairly,  in conformity with GAAP the consolidated  results of operations
of Bank for the respective  periods covered thereby and the financial  condition
of Bank as of the  respective  dates  thereof.  All thrift  financial  and other
regulatory reports referred to above have been filed on the appropriate form and
prepared in all material  respects in accordance  with such forms'  instructions
and the applicable rules and regulations of the regulating federal agency. As of
the date of the latest  statement  of  financial  condition  forming part of the
Interim  Financial  Statements (the "Latest Balance Sheet"),  Bank did not have,
nor were any of its assets  subject  to,  any  material  liability,  commitment,
indebtedness or obligation (of any kind whatsoever,  whether absolute,  accrued,
contingent, matured or unmatured) which is not reflected and adequately reserved
against in  accordance  with  GAAP.  No report,  proxy  statement,  registration
statement or offering  circular  filed by Bank with the OTS or other  regulatory
agency since January 1, 1994 through the date of this  Agreement,  and no report
made to  shareholders  of Bank since  January 1, 1994  through  the date of this
Agreement, as of the respective dates thereof, contained any untrue statement of
a  material  fact or  omitted to state a  material  fact  required  to be stated
therein  or  necessary  to  make  the  statements   therein,  in  light  of  the
circumstances under which they were made, not misleading.  No such report, proxy
statement,   registration   statement  or  report  to   shareholders   filed  or
disseminated  after the date of this Agreement will contain any untrue statement
of a  material  fact or omit to state a  material  fact  required  to be  stated
therein  or  necessary  to  make  the  statements   therein,  in  light  of  the
circumstances  under  which  they were  made,  not  misleading,  except  for any
information  concerning Whitney's consolidated group provided by or on behalf of
Whitney specifically for inclusion therein. The Financial Statements and Interim
Financial  Statements are supported by and consistent  with a general ledger and
detailed  trial  balances  of  investment  securities,  loans  and  commitments,
depositors'  accounts  and cash  balances  on deposit  with other  institutions,
copies of which have been made available to Whitney.

         3.05.  Loan  and  Investment  Portfolios.   All  loans,  discounts  and
financing leases (in which Bank is lessor) reflected on the Latest Balance Sheet
(a) were, at the time and under the  circumstances in which made, made for good,
valuable and adequate  consideration  in the ordinary course of business of Bank
(b)  are  evidenced  by  genuine  notes,   agreements  or  other   evidences  of
indebtedness and (c) to the extent secured, have been secured by valid liens and
security interests which have been perfected.  Accurate lists of all such loans,
discounts and financing  leases as of the date of the Latest Balance Sheet (or a
more recent  date),  and of the  investment  portfolios of Bank as of such date,
will be  delivered  to Whitney  concurrently  with the  Schedule of  Exceptions.
Except as  specifically  noted on the loan schedule  attached to the Schedule of
Exceptions,  Bank is not a party to any written or oral loan agreement,  note or
borrowing  arrangement,  including any loan  guaranty,  that was, as of the most
recent month-end (i) delinquent by more than 30 days in the payment of principal
or interest,  (ii) known by Bank to be  otherwise  in material  default for more
than 30 days,  (iii)  classified as  "substandard,"  "doubtful,"  "loss," "other
assets especially  mentioned" or any comparable  classification by Bank, the OTS
or the Federal Deposit Insurance Corporation (the "FDIC"), (iv) an obligation of
any director,  executive  officer or 10%  shareholder  of Bank who is subject to
Regulation  O of the Board of  Governors  of the  Federal  Reserve  System  (the
"Federal  Reserve  Board")  (12  C.F.R.  Part  215)  or any  similar  regulation
applicable  to Bank,  or any  person,  corporation  or  enterprise  controlling,
controlled  by or under  common  control  with any of the  foregoing,  or (v) in
violation of any law,  regulation or rule of any governmental  authority,  other
than those that are immaterial in amount.

         3.06.  Adequacy of Allowances  for Losses.  Each of the  allowances for
losses on loans,  financing  leases  and other real  estate  shown on the Latest
Balance Sheet is adequate in accordance  with applicable  regulatory  guidelines
and GAAP in all material respects, and there are no facts or circumstances known
to Bank which are likely to require in  accordance  with  applicable  regulatory
guidelines or GAAP a future material  increase in any such provisions for losses
or a material decrease in any of the allowances therefor reflected in the Latest
Balance Sheet. Each of the allowances for losses on loans,  financing leases and
other real estate reflected on the books of Bank at all times from and after the
date of the Latest  Balance  Sheet is adequate  in  accordance  with  applicable
regulatory guidelines and GAAP in all material respects,  and there are no facts
or circumstances known to Bank which are likely to require in accordance with

                                       A-5

<PAGE>

applicable  regulatory  guidelines or GAAP a future material  increase in any of
such  provisions for losses or a material  decrease in the  allowances  therefor
reflected in the Latest Balance Sheet.

         3.07.  Examination  Reports. To the extent permitted by applicable law,
Bank has provided to Whitney true and correct copies of all examination  reports
with  respect to Bank made by any federal or state  regulatory  authority  since
December 31, 1992.

         3.08.  Absence  of Certain  Changes  or  Events.  Since the date of the
Latest Balance Sheet,  Bank has not declared,  set aside for payment or paid any
dividend to holders of, or declared or made any  distribution  on, any shares of
Bank's  capital stock except  regular  quarterly  dividends from the date of the
Latest  Balance Sheet until the Closing Date in amounts not to exceed $0.175 per
share  payable  quarterly.  Whitney and Bank shall  cooperate in  selecting  the
record date of Bank's dividend for the quarter in which the Effective Time is to
occur to ensure that, with respect to such quarterly period, the holders of Bank
Common  Stock do not receive  both a dividend in respect of their shares of Bank
Common  Stock and  Whitney  Common  Stock or fail to receive any  dividend,  and
Whitney  and Bank will use their best  efforts to select the  Closing  Date such
that  holders of Bank Common  Stock  qualify for the  dividend in respect of the
Whitney  Common  Stock  (rather  than the dividend in respect of the Bank Common
Stock)  declared in the quarter in which the Effective  Time is to occur.  Since
the date of the Latest  Balance  Sheet,  there has been no event or condition of
any character  (whether actual or threatened) that has had, or can reasonably be
anticipated to have, a Material  Adverse  Effect.  Except as may result from the
transactions contemplated by this Agreement, Bank has not, since the date of the
Latest Balance Sheet:

                  (a) borrowed  any money or entered  into any capital  lease or
leases  or,  except in the  ordinary  course of  business  consistent  with past
practices,  (i) lent any money or pledged any of its credit in  connection  with
any aspect of its business whether as a guarantor,  surety, issuer f a letter of
credit  or  otherwise,  (ii)  mortgaged  or  otherwise  subjected  to any  lien,
encumbrance  or other  liability  any of its  assets,  (iii)  sold,  assigned or
transferred  any of its assets in excess of $100,000 in the  aggregate,  or (iv)
incurred any material liability, commitment,  indebtedness or obligation (of any
kind whatsoever, whether absolute or contingent);

                  (b)  suffered  any  material  damage,  destruction  or loss to
immovable or movable property, whether or not covered by insurance;

                  (c) experienced any material change in asset concentrations as
to customers or industries or in the nature and source of its  liabilities or in
the mix of interest-bearing versus non-interest bearing deposits;

                  (d) received notice or had knowledge or reason to believe that
any material  labor unrest  exists among any of its employees or that any group,
organization or union has attempted to organize any of its employees;

                  (e) received notice or had knowledge or reason to believe that
any of its  substantial  customers has  terminated or intends to terminate  such
customers' relationship with it;

                  (f) failed to operate  its  business  in the  ordinary  course
consistent with past practices,  or failed to preserve its business organization
intact or to preserve the goodwill of its  customers and others with whom it has
business relations;

                  (g) incurred any  material  loss or expense  except for losses
adequately  reserved against on the Latest Balance Sheet and expenses associated
with the transactions  contemplated by this Agreement and the Merger  Agreement,
or waived any  material  right in  connection  with any aspect of its  business,
whether or not in the ordinary course of business;

                  (h)  forgiven  any debt  owed to it,  or  canceled  any of its
claims or paid any of its noncurrent obligations or liabilities;

                  (i)  made any  capital  expenditure  or  capital  addition  or
betterment in excess of $50,000;

                                       A-6

<PAGE>

                  (j)  entered  into  any   agreement   requiring  the  payment,
conditionally or otherwise, of any salary, bonus, extra compensation, pension or
severance  payment  to any of its  present  or  former  directors,  officers  or
employees,  except such agreements as are terminable at will without any penalty
or other  payment by it or increased  (except for  increases of not more than 5%
consistent  with past practices) the  compensation  (including  salaries,  fees,
bonuses,  profit  sharing,  incentive,  pension,  retirement  or  other  similar
payments) of any such person whose annual  compensation  would,  following  such
increase, exceed $50,000;

                  (k) except as required in  accordance  with GAAP,  changed any
accounting  practice followed or employed in preparing the Financial  Statements
or Interim Financial Statements;

                  (l) made any loan,  given any  discount  or  entered  into any
financing  lease  which  has not  been (i)  made,  at the  time  and  under  the
circumstances  in which made, for good,  valuable and adequate  consideration in
the ordinary course of business,  (ii) evidenced by genuine notes, agreements or
other  evidences of indebtedness  and (iii) fully reserved  against in an amount
sufficient in accordance  with applicable  regulatory  guidelines to provide for
all charge-offs  reasonably anticipated in the ordinary course of business after
taking into account all recoveries reasonably anticipated in the ordinary course
of business; or

                  (m) entered into any  agreement,  contract or commitment to do
any of the foregoing.

         3.09.  Taxes.  Bank (i) has timely filed all  federal,  state and local
income, franchise, excise, sales and use, real and personal property, employment
and other tax returns, tax information returns and reports required to be filed,
(ii) has paid all taxes,  interest  payments and penalties as reflected  therein
which have become due, other than taxes which are being  contested in good faith
and for which adequate reserves are set forth on the Latest Balance Sheet, (iii)
has made adequate  provision for the payment of all such taxes accruable for all
periods  ending  on or  before  the date of this  Agreement  (and will make such
accruals through the Closing Date) to any city, parish, state, the United States
or any other taxing authority,  and (iv) is not delinquent in the payment of any
material tax or  governmental  charge of any nature.  The  consolidated  federal
income  tax  returns  of Bank  have not been  audited  by the  Internal  Revenue
Service. No audit,  examination or investigation is presently being conducted or
is, to the actual  knowledge of Bank,  presently being  threatened by any taxing
authority,  no material unpaid tax deficiencies or additional liabilities of any
sort have  been  proposed  to Bank by any  governmental  representative,  and no
agreements for extension of time for the assessment of any tax have been entered
into by or on behalf of Bank.  Bank has withheld from its employees  (and timely
paid to the appropriate governmental entity) proper and accurate amounts for all
periods in compliance with all tax withholding provisions of applicable federal,
state and local laws (including, without limitation, income, social security and
employment tax withholding for all forms of compensation).

         3.10.  Title to Assets.  (a) On the date of the Latest  Balance  Sheet,
Bank  had,  and,  except  with  respect  to  assets  disposed  of  for  adequate
consideration  in the ordinary course of business since such date, now has, good
and merchantable  title to all real property and good and merchantable  title to
all other material  properties and assets reflected on the Latest Balance Sheet,
and  has  good  and  merchantable  title  to all  real  property  and  good  and
merchantable  title to all other material  properties and assets  acquired since
the date of the  Latest  Balance  Sheet,  in each  case  free  and  clear of all
mortgages,  liens,  pledges,  restrictions,   security  interests,  charges  and
encumbrances  of any nature  except for (i)  mortgages  and  encumbrances  which
secure  indebtedness  which is properly reflected in the Latest Balance Sheet or
which secure  deposits of public funds as required by law;  (ii) liens for taxes
accrued  but not yet  payable;  (iii)  liens  arising  as a matter of law in the
ordinary course of business with respect to obligations  incurred after the date
of the Latest Balance Sheet, provided that the obligations secured by such liens
are not delinquent or are being contested in good faith; (iv) such imperfections
of title and encumbrances,  if any, as do not materially  detract from the value
or materially interfere with the present use of any of such properties or assets
or the potential sale of any of such owned properties or assets; and (v) capital
leases and leases, if any, to third parties for fair and adequate consideration.
Bank owns,  or has valid  leasehold  interests in, all material  properties  and
assets used in the conduct of its business. Any real property and other material
assets held under lease by Bank are held under valid, subsisting and enforceable
leases with such  exceptions as are not material and do not  interfere  with the
use made of and proposed to be made of such property by Bank.

                                       A-7

<PAGE>


                  (b) With  respect  to each  lease of any  real  property  or a
material amount of personal property to which Bank is a party (whether as lessee
or lessor),  except for financing leases in which Bank is lessor, (i) such lease
is in full force and  effect in  accordance  with its terms;  (ii) all rents and
other  monetary  amounts that have become due and payable  thereunder  have been
paid;  (iii) there exists no default,  or event,  occurrence,  condition or act,
which  with the  giving of  notice,  the lapse of time or the  happening  of any
further  event,  occurrence,  condition or act would become a default under such
lease;  and (iv) the  Merger  will  not  constitute  a  default  or a cause  for
termination or modification of such lease.

                  (c)  Bank  does not have any  legal  obligation,  absolute  or
contingent,  to any other person to sell or otherwise dispose of any substantial
part of its  assets,  or to sell or dispose  of any of its assets  except in the
ordinary course of business consistent with past practices.

         3.11.  Legal  Matters.  (a)  Except  for  the  actions  listed  on  the
subsection of the Schedule of Exceptions  that  corresponds to this  subsection,
there are no material  claims,  actions,  suits,  proceedings,  arbitrations  or
investigations  pending or, to Bank's actual knowledge,  threatened against Bank
or the Subsidiaries nor do any facts or circumstances exist that would be likely
to form the  basis  for any  material  claim,  in any  court or before or by any
governmental  agency  or  instrumentality  or  arbitration  panel or  otherwise,
against Bank.

                  (b) Bank and the  Subsidiaries  have complied with and are not
in  default  in any  material  respect  under  (and  have  not been  charged  or
threatened with or, to Bank's actual knowledge,  come under  investigation  with
respect to any charge concerning any material violation of any provision of) any
federal,  state or local  law,  regulation,  ordinance,  rule or order  (whether
executive,   judicial,  legislative  or  administrative)  or  any  order,  writ,
injunction or decree of any court, agency or instrumentality.

                  (c) There are no material  uncured  violations,  or violations
with respect to which material refunds or restitution may be required,  cited in
any  compliance  report to Bank as a result of examination by any bank or thrift
regulatory authority.

                  (d) There is no claim, action, suit, proceeding,  arbitration,
or investigation,  pending or, to Bank's actual knowledge,  threatened, in which
any material  claim or demand is made or  threatened  to be made against Bank or
the Subsidiaries or any officer,  director,  advisory  director or employee,  in
each case by reason of any person  being or having  been an  officer,  director,
advisory director or employee of Bank or the Subsidiaries.

         3.12.  Employee  Benefit Plans.  (a) Except for the plans listed on the
subsection of the Schedule of Exceptions  that  corresponds  to this  subsection
(the "ERISA Plans"), Bank does not sponsor,  maintain or contribute to, and Bank
has not at any time  sponsored,  maintained  or  contributed  to,  any  employee
benefit plan that is subject to any of the provisions of the Employee Retirement
Income Security Act of 1974, as amended  ("ERISA").  Each of the ERISA Plans has
been maintained and administered in all material respects in compliance with its
terms,  the  provisions  of ERISA  and all other  applicable  laws,  and,  where
applicable,  the provisions of the Code. No ERISA Plan,  including any "party in
interest"  or  "disqualified  person"  with  respect  thereto  has  engaged in a
nonexempt  prohibited  transaction  under  Section  4975 of the Code or  Section
502(i) of ERISA;  there is no matter  relating to any of the ERISA Plans pending
or, to Bank's actual knowledge,  threatened, nor to Bank's actual knowledge, are
there any facts or  circumstances  existing that could reasonably be expected to
lead  to  (other  than  routine  filings  such  as  qualification  determination
filings),  proceedings  before, or  administrative  actions by, any governmental
agency;  there are no  actions,  suits or claims  pending  or, to Bank's  actual
knowledge,  threatened (including,  without limitation, breach of fiduciary duty
actions,  but excluding routine  uncontested claims for benefits) against any of
the  ERISA  Plans or the  assets  thereof.  Bank has  complied  in all  material
respects with the reporting and disclosure  requirements  of ERISA and the Code.
None of the ERISA Plans is a  multi-employer  plan within the meaning of Section
3(37) of ERISA. A favorable determination letter has been issued by the Internal
Revenue Service with respect to each ERISA Plan that is intended to be qualified
under Section 401(a) of the Code and, to Bank's actual  knowledge,  the Internal
Revenue  Service  has taken no action to revoke any such  letter and nothing has
occurred,  whether by action or failure to act,  which  would  cause the loss of
such qualification.  Bank has not sponsored, maintained or made contributions to
any plan, fund or arrangement  subject to Title IV of ERISA or the  requirements
of Section 412 of the Code or providing for medical benefits, insurance coverage
or other similar

                                       A-8

<PAGE>


benefits for any period extending  beyond the termination of employment,  except
as may be required under the "COBRA" provisions of ERISA and the Code.

                  (b) Set forth on the  subsection of the Schedule of Exceptions
corresponding  to this subsection is a true and complete list and description of
each and every benefit plan and benefit arrangement of Bank other than the ERISA
Plans. True and complete copies of all plan (including ERISA Plan) documents and
written  agreements  (including  all  amendments  and  modifications   thereof),
together with copies of any tax determination letters, trust agreements, summary
plan descriptions, insurance contracts, investment management agreements and the
three most recent  annual  reports on form series 5500 with respect to such plan
or arrangement  will be delivered to Whitney  concurrently  with the Schedule of
Exceptions.  No such  ERISA  Plan or other plan  constitutes  a defined  benefit
pension plan or has any "accumulated  funding  deficiency" within the meaning of
the Code.

                  (c) All group health plans of Bank to which  Section  4980B(f)
of the Code or Section 601 of ERISA  applies are in  compliance  in all material
respects with continuation coverage requirements of Section 4980B(f) of the Code
and Section 601 of ERISA and any prior  violations  of such  sections  have been
cured prior to the date hereof.

                  (d) Each plan,  fund or  arrangement  previously  sponsored or
maintained by Bank, or to which Bank  previously  made  contributions  which has
been  terminated by Bank was terminated in accordance  with ERISA,  the Code and
the terms of such plan,  fund or  arrangement  and no event has  occurred and no
condition  exists that would subject Bank,  Whitney or WNB to any tax,  penalty,
fine or other liability as a result of, directly or indirectly,  the termination
of such plan, fund or arrangement.

                  (e) The current  fair market value of the assets of each ERISA
Plan  subject  to the  provisions  of Title IV of ERISA  equals or  exceeds  the
present  value of the  accrued  benefits  of each such plan as of the end of the
most recent plan year, calculated on a termination and on-going basis, and there
has been no  material  change  likely to change the  funding  status of any such
plan. No funding deficiency within the meaning of Section 412 of the Code exists
with respect to any ERISA Plan. All contributions  required or accrued under the
terms of any plan  (including  any ERISA Plan) have been made and all  insurance
premiums  required or accrued under the terms of any plan  (including  any ERISA
plan) have been paid as of the date hereof.

         3.13.  Insurance  Policies.  Bank maintains in force insurance policies
and bonds in such  amounts  and  against  such  liabilities  and  hazards as are
considered by it to be adequate. An accurate list of all such insurance policies
is attached to the Schedule of Exceptions.  Bank is not liable for, nor has Bank
received  any  notice of,  any  material  retroactive  premium  adjustment.  All
policies are valid and  enforceable  and in full force and effect,  and Bank has
not  received any notice of a material  premium  increase or  cancellation  with
respect to any of its insurance policies or bonds.  Within the last three years,
Bank has not been  refused any basic  insurance  coverage  sought or applied for
(other than certain  exclusions for coverage of certain events or  circumstances
as stated in such  polices),  and Bank does not have any reason to believe  that
its  existing  insurance  coverage  cannot be renewed as and when the same shall
expire,  upon terms and conditions standard in the market at the time renewal is
sought.

         3.14.    Agreements.  (a)  Bank is not a party to:

                           (i)  any collective bargaining agreement;

                           (ii)  other  than the  employee  benefits  and  plans
referred to in the section of the Schedule of
Exceptions that corresponds to Section 3.12 of this Agreement, any employment or
other  agreement  or contract  with or  commitment  to any  employee  except the
agreements,  arrangements,  policies and practices referred to in the section of
the Schedule of Exceptions that  corresponds to subparagraph (j) of Section 3.08
of this Agreement and such agreements as are terminable without penalty upon not
more than 30 days notice by the employer;

                           (iii) any  obligation of guaranty or  indemnification
except such indemnification of officers,
directors,  employees and agents of Bank as on the date of this Agreement may be
provided in its charter, bylaws,  indemnification plan (true and complete copies
of which have been provided to Whitney) or pursuant to 12 C.F.R. ss.545.121 (and
no  indemnification  of any such officer,  director,  employee or agent has been
proposed, authorized,

                                       A-9

<PAGE>


granted or awarded  except as set forth in the  subsection  of the  Schedule  of
Exceptions that corresponds with this  subsection),  and except, if entered into
in the ordinary course of business with respect to customers of Bank, letters of
credit, guaranties of endorsements and guaranties of signatures;

                           (iv) any agreement,  contract or commitment  which is
or if performed will result in a Material
Adverse Effect on Bank;

                           (v) any agreement,  contract or commitment containing
any  covenant limiting  the  freedom of  Bank  (x)  to  engage  in any  line  of
business  permitted  by  regulatory authorities,  (y) to compete with any person
in  a line  of business  permitted  by  applicable  regulatory guidelines  to be
engaged in by Louisiana state or  national banks  or federally chartered savings
institutions,  as applicable to Bank, or (z) to  fulfill any of its requirements
or  needs  for  services or  products  (including, for  example, contracts  with
vendors to supply customers with credit insurance); or

                           (vi) any written agreement, memorandum, letter, order
or decree, formal or informal, with any federal or state regulatory agency.

                  (b)  The  subsection  of  the  Schedule  of  Exceptions   that
corresponds  to this  subsection  contains  a list of each  material  agreement,
contract or  commitment  (except  those  entered into in the ordinary  course of
business with respect to loans,  lines of credit,  letters of credit,  depositor
agreements, certificates of deposit and similar banking activities and equipment
maintenance agreements which are not material) to which Bank is a party or which
affects Bank. Bank has not in any material  respect  breached,  nor is there any
pending or, to Bank's actual knowledge,  threatened claim that it has materially
breached, any of the terms or conditions of any of such agreements, contracts or
commitments or of any material agreement,  contract or commitment that it enters
into after the date of this Agreement.  Bank is not in material violation of any
written agreement, memorandum, letter, order or decree, formal or informal, with
any federal or state regulatory agency.

         3.15.  Licenses,  Franchises  and  Governmental  Authorizations.   Bank
possesses   all   licenses,   franchises,   permits   and   other   governmental
authorizations  necessary  for the  continued  conduct of its  business  without
interference  or  interruption.  The deposits of Bank are insured by the Savings
Association  Insurance  Fund,  which is  administered by the FDIC, to the extent
provided  by  applicable  law,  and there are no  pending  or, to Bank's  actual
knowledge,  threatened  proceedings  to revoke or modify that  insurance  or for
relief under 12 U.S.C. Section 1818.

         3.16.  Corporate  Documents.  Bank has  delivered  to Whitney  true and
correct  copies  of its  charter  and its  bylaws,  all as  amended.  All of the
foregoing and all of the corporate  minutes and stock  transfer  records of Bank
are current, complete and correct in all material respects.

         3.17.  Certain  Transactions.  No past or present  director,  executive
officer or five percent  shareholder of Bank has, since January 1, 1994, engaged
in any transaction or series of transactions  required to be disclosed  pursuant
to Item 404 of Regulation S-K of the Rules and Regulations of the Securities and
Exchange Commission (the "SEC"), other than transactions that were so disclosed.

         3.18. Broker's or Finder's Fees. Except for Friedman,  Billings, Ramsey
& Co., Inc.,  whose fees and right to reimbursement of expenses are as disclosed
pursuant  to a  contract  dated  September  30,  1997 (a copy of which  has been
provided  to  Whitney),  no agent,  broker,  investment  banker,  investment  or
financial  advisor or other  person  acting on behalf of Bank is entitled to any
commission,  broker's  or  finder's  fee  from  any of  the  parties  hereto  in
connection with any of the transactions contemplated by this Agreement.

         3.19.  Environmental  Matters.  (a) (i) Bank has  obtained all material
permits,  licenses and other  authorizations that are required to be obtained by
it under any applicable  Environmental Law Requirements (as hereinafter defined)
in  connection  with  the  operation  of its  businesses  and  ownership  of its
properties   (collectively,   the  "Subject   Properties"),   including  without
limitation, properties acquired by foreclosure or in settlement of loans;


                                      A-10

<PAGE>


                           (ii)  Except  as  disclosed  in the subsection of the
Schedule  of  Exceptions  that  corresponds  to  this  subsection,  Bank  is  in
compliance in  all  material  respects  with  all  terms and  conditions of such
permits, licenses and authorizations  and  with all applicable Environmental Law
Requirements;

                           (iii) Except as disclosed  in the  subsection  of the
Schedule of Exceptions that corresponds to  this  subsection,  there are no past
or  present  events,  conditions,  circumstances,  activities or  plans by  Bank
related in any manner to Bank or the Subject Properties that did or would in any
material respect, violate or prevent compliance  or  continued  compliance  with
any  of  the Environmental Law Requirements, or give  rise to any  Environmental
Liability,  as  hereinafter defined;

                           (iv)   Except  as  set  forth  in  the   Schedule  of
Exceptions  pursuant  to  clause  (iii)  above, there  is no civil,  criminal or
administrative  action,  suit, demand,  claim,  order, judgment, hearing, notice
or demand letter, notice of violation,  investigation or proceeding  pending or,
to Bank's actual knowledge, threatened by any person against Bank, or, to Bank's
actual  knowledge, any  prior  owner of  any of  the  Subject  Properties, which
relates to  the Subject  Properties and relates  in any way to any Environmental
Law Requirement or seeks to impose any  Environmental Liability; and

                           (v) To Bank's actual  knowledge,  Bank is not subject
to  or  responsible  for any material  Environmental  Liability which is not set
forth and adequately  reserved against on the Latest Balance Sheet.

                  (b)  "Environmental  Law  Requirement"  means  all  applicable
present statutes,  regulations,  rules,  ordinances,  codes, licenses,  permits,
orders, approvals, plans,  authorizations,  concessions,  franchises and similar
items, of all governmental agencies, departments,  commissions, boards, bureaus,
or  instrumentalities  of the United States,  states and political  subdivisions
thereof and all applicable  judicial,  administrative,  and regulatory  decrees,
judgments  and  orders  relating  to  the  protection  of  human  health  or the
environment,  including without limitation: (A) all requirements,  including but
not  limited  to  those   pertaining   to  reporting,   licensing,   permitting,
investigation, and remediation of emissions, discharges, releases, or threatened
releases  of  Hazardous  Materials  (as such term is  defined  below),  chemical
substances,   pollutants,   contaminants,  or  hazardous  or  toxic  substances,
materials or wastes whether solid,  liquid, or gaseous in nature,  into the air,
surface water, groundwater, or land, or relating to the manufacture, processing,
distribution,  use,  treatment,  storage,  disposal,  transport,  or handling of
Hazardous Materials, chemical substances, pollutants, contaminants, or hazardous
or toxic substances,  materials or wastes,  whether solid, liquid, or gaseous in
nature;  (B) all requirements  pertaining to protection of the health and safety
of  employees  or the public;  and (C) all  requirements  pertaining  to the (i)
drilling,   production,   and  abandonment  of  oil  and  gas  wells,  (ii)  the
transportation  of  produced  oil and gas,  and (iii) the  remediation  of sites
related to that drilling, production or transportation.

                  (c)  "Hazardous  Materials"  shall  mean:  (A) Any  "hazardous
substance"  as  defined  by either  the  Comprehensive  Environmental  Response,
Compensation  and  Liability  Act of 1980  (42  U.S.C.  Section  9601,  et seq.)
("CERCLA") as amended from time to time, or regulations  promulgated thereunder;
(B) asbestos;  (C) polychlorinated  biphenyls;  (D) any "regulated substance" as
defined by 40 C.F.R.  Section 280.12, or the Louisiana  Administrative Code; (E)
any naturally occurring  radioactive material ("NORM"), as defined by applicable
federal or state laws or regulations as amended from time to time,  irrespective
of whether the NORM is located in  Louisiana  or another  jurisdiction;  (F) any
non-hazardous  oilfield wastes ("NOW") defined under applicable federal or state
laws or  regulations,  irrespective  of  whether  those  wastes  are  located in
Louisiana or another  jurisdiction;  (G) any  substance the presence of which on
the Subject  Properties  is prohibited  by any lawful rules and  regulations  of
legally  constituted  authorities  in force and effect  relating  to the Subject
Properties;  and (H) any other  substance  which by any such rule or  regulation
requires special handling in its collection, storage, treatment or disposal.

                  (d) "Environmental  Liability" shall mean (i) any liability or
obligation  arising  under  any  Environmental  Law  Requirement,  or  (ii)  any
liability  or  obligation  under  any other  theory of law or equity  (including
without  limitation  any  liability  for  personal  injury,  property  damage or
remediation) that results from, or is based upon or related to, the manufacture,
processing,  distribution,  use,  treatment,  storage,  disposal,  transport  or
handling,  or the emission,  discharge,  release or threatened  release into the
environment,  of any Hazardous Material,  pollutant,  contaminant,  chemical, or
industrial, toxic or hazardous substance or waste.

                                      A-11

<PAGE>


         3.20.  Compliance  with Laws. Bank is in compliance with all applicable
laws, rules, regulations, orders, writs, judgments and decrees the noncompliance
with  which  could  cause a  Material  Adverse  Effect  on  Bank.  There  are no
governmental  investigations pending or, to Bank's actual knowledge,  threatened
against Bank or the Subsidiaries.

         3.21.  Intellectual Property.  Bank owns or holds valid licenses to use
all trademarks,  tradenames,  service marks and other intellectual property that
are material to the conduct of its business.

         3.22.  Community  Reinvestment  Act.  Bank has complied in all material
respects with the provisions of the Community  Reinvestment  Act ("CRA") and the
rules  and   regulations   thereunder,   has  CRA   ratings  of  not  less  than
"satisfactory,"  and has received no material  criticism  from  regulators  with
respect  to  discriminatory  lending  practices,  and  has no  knowledge  of any
conditions  or  circumstances  that are likely to result in CRA  ratings of less
than  "satisfactory"  or material  criticism  from  regulators  with  respect to
discriminatory lending practices.

         3.23. Accuracy of Statements.  No warranty or representation made or to
be  made  by  Bank  in this  Agreement  or in any  document  furnished  or to be
furnished by Bank pursuant to this Agreement and no information relating to Bank
or any of its affiliates furnished by Bank pursuant to this Agreement,  contains
or will contain,  as of the date of this  Agreement,  the effective  date of the
Registration Statement (as defined in Section 5.14 hereof) and the Closing Date,
an untrue  statement  of a  material  fact or an  omission  of a  material  fact
necessary to make the statements  contained herein and therein,  in light of the
circumstances in which they are made, not misleading.

         Section 4.        Representations and Warranties of Whitney and WNB

                  Whitney and WNB  represent and warrant to Bank that, as of the
date of this Agreement and as of the Closing Date:

         4.01.  Consolidated  Group;  Organization;   Qualification.  "Whitney's
consolidated group," as such term is used in this Agreement, consists of Whitney
and all of its  consolidated  subsidiaries  for  financial  reporting  purposes.
Whitney is a corporation  duly organized and validly  existing under the laws of
the State of Louisiana and is a bank holding  company  within the meaning of the
Bank  Holding  Company  Act of  1956,  as  amended.  WNB is a  national  banking
association,  duly organized and validly existing and in good standing under the
laws of the United States of America. Each of Whitney and WNB have all requisite
corporate  power and authority to own and lease its property and to carry on its
business as it is  currently  being  conducted  and to execute and deliver  this
Agreement and the Merger  Agreement to which it is a party and to consummate the
transactions  contemplated  hereby and  thereby,  and is  qualified  and in good
standing as a foreign  corporation in all  jurisdictions in which the failure to
so qualify  would have a material  adverse  effect on the  financial  condition,
results of operations or business of Whitney's  consolidated  group,  taken as a
whole.

         4.02.  Capital Stock. As of the date of this Agreement,  the authorized
capital stock of Whitney consists of 40,000,000  shares of Whitney Common Stock.
As of September 30, 1997,  20,750,110 shares of Whitney Common Stock were issued
and  outstanding  and 364,491  shares were held in its treasury.  All issued and
outstanding shares of capital stock of Whitney and WNB have been duly authorized
and are validly issued,  fully paid and (except as provided in 12 U.S.C. Section
55)  non-assessable.  The outstanding  capital stock of Whitney and WNB has been
issued in compliance with all legal  requirements  and any preemptive or similar
rights.  Whitney owns all of the issued and outstanding  shares of capital stock
of WNB free and clear of all  liens,  charges,  security  interests,  mortgages,
pledges and other encumbrances.

         4.03. Corporate Authorization; No Conflicts. Subject to approval of the
Merger  Agreement by Whitney as the sole  shareholder of WNB, all corporate acts
and  other  proceedings  required  of  Whitney  and WNB  for  the due and  valid
authorization,  execution,  delivery and  performance  of this Agreement and the
Merger   Agreement  and  consummation  of  the  Merger  have  been  validly  and
appropriately  taken.  Subject to such  regulatory  approvals as are required by
law,  this  Agreement  and the Merger  Agreement  are legal,  valid and  binding
obligations of Whitney and WNB, as the case may be, and are enforceable  against
them in accordance  with the respective  terms of such  agreements,  except that
enforcement  may be  limited  by  (i)  bankruptcy,  insolvency,  reorganization,
moratorium,  receivership,  conservatorship,  and other laws now or hereafter in
effect relating to or affecting the enforcement of creditors' rights

                                      A-12

<PAGE>


generally or the rights of creditors of insured  depository  institutions,  (ii)
general  equitable  principles,  and  (iii)  laws  relating  to the  safety  and
soundness of insured depository institutions,  and except that no representation
is made as to the effect or  availability  of equitable  remedies or  injunctive
relief (regardless of whether such  enforceability is considered in a proceeding
in equity or at law).  With  respect to each of  Whitney  and WNB,  neither  the
execution,  delivery or performance  of this Agreement or the Merger  Agreement,
nor the consummation of the transactions contemplated hereby or thereby will (i)
violate,  conflict  with,  or  result  in a breach  of any  provision  of,  (ii)
constitute a default (or an event  which,  with notice or lapse of time or both,
would  constitute  a  default)  under,  (iii)  result in the  termination  of or
accelerate  the  performance  required by, or (iv) result in the creation of any
lien,  security  interest,  charge or encumbrance  upon any of its properties or
assets  under,  any of the terms,  conditions  or  provisions of its articles of
incorporation  or  association,  as the case may be, or by-laws  (or  comparable
documents)  or any material  note,  bond,  mortgage,  indenture,  deed of trust,
lease, license, agreement or other instrument or obligation to or by which it or
any of its assets is bound;  or violate  any order,  writ,  injunction,  decree,
statute,  rule or regulation of any governmental body applicable to it or any of
its assets.

         4.04. Financial Statements,  Reports and Proxy Statements.  (a) Whitney
has delivered to Bank true and complete copies of (i) the  consolidated  balance
sheets  as of  December  31,  1995 and  December  31,  1996 of  Whitney  and its
consolidated  subsidiaries,  the related consolidated  statements of operations,
changes in  shareholders'  equity and cash flows for the  respective  years then
ended,  the related  notes  thereto,  and the report of its  independent  public
accountants  with respect  thereto,  as presented in Whitney's  Annual Report on
Form 10-K for the  fiscal  year  ended  December  31,  1996  filed  with the SEC
(collectively,  the  "Whitney  Financial  Statements")  and (ii)  the  unaudited
consolidated  balance  sheet  as of  September  30,  1997  of  Whitney  and  its
consolidated subsidiaries and the related unaudited statements of operations and
cash flows for the  nine-month  period then ended,  as  presented  in  Whitney's
quarterly  report on Form 10- Q for the  quarter  then ended  filed with the SEC
(collectively, the "Whitney Interim Financial Statements").

                  (b) The Whitney  Financial  Statements and the Whitney Interim
Financial  Statements  have been prepared in  conformity  with GAAP applied on a
basis  consistent  with prior periods,  and present  fairly,  in conformity with
GAAP, the consolidated results of operations of Whitney's consolidated group for
the respective periods covered thereby and the consolidated  financial condition
of its consolidated group as of the respective dates thereof. All call and other
regulatory  reports have been filed on the appropriate  form and prepared in all
material respects in accordance with such form's instructions and the applicable
rules and regulations of the regulating  federal  agency.  As of the date of the
latest balance sheet forming part of the Whitney  Interim  Financial  Statements
(the "Whitney Latest Balance Sheet"), no member of Whitney's  consolidated group
had,  nor were any of any of such  member's  assets  subject  to,  any  material
liability,  commitment,  indebtedness or obligation,  which is not reflected and
adequately  reserved  against in the Whitney  Latest Balance Sheet in accordance
with GAAP.

         4.05.  Legality  of Whitney  Securities.  All shares of Whitney  Common
Stock to be issued  pursuant to the Merger have been duly  authorized  and, when
issued  pursuant to the Merger  Agreement,  will be validly and legally  issued,
fully paid and non-assessable,  and will be, at the time of their delivery, free
and clear of all liens,  charges,  security  interests,  mortgages,  pledges and
other encumbrances and any preemptive or similar rights.

         4.06. SEC Reports. Whitney has previously delivered to Bank an accurate
and complete copy of the following  Whitney  reports filed with the SEC pursuant
to the  Exchange  Act:  (a)  annual  reports  on Form 10-K for the  years  ended
December 31, 1994,  1995 and 1996;  (b)  quarterly  reports on Form 10-Q for the
quarters  ended  March  31,  June 30,  and  September  30,  1997;  and (c) proxy
statements for the years 1995, 1996 and 1997; as of their  respective  dates, no
such report or  communication  contained any untrue statement of a material fact
or omitted to state any material fact required to be stated therein or necessary
in order to make the statements  therein,  in light of the  circumstances  under
which they were made, not  misleading.  Whitney has timely filed all reports and
other documents  required to be filed by it under the Securities Act of 1933, as
amended (the "Securities Act") and the Exchange Act.

         4.07.  Absence  of Certain  Changes  or  Events.  Since the date of the
Whitney  Latest  Balance  Sheet,  there  has been no event or  condition  of any
character  (whether  actual or  threatened)  that has had, or can  reasonably be
anticipated  to have,  a material  adverse  effect on the  financial  condition,
results of  operations  or business of Whitney's  consolidated  group taken as a
whole.


                                      A-13

<PAGE>


         4.08.  Legal  Matters.  (a)  There  are  no  material  actions,  suits,
proceedings,  arbitrations or investigations  pending or, to Whitney's knowledge
threatened,  against any member of Whitney's  consolidated  group which would be
required to be disclosed in a Form 10-K,  Form 10-Q or Form 8-K pursuant to Item
103 of  Regulation  S-K of the  SEC's  Rules  and  Regulations  that  are not so
disclosed.

                  (b) There are no material  uncured  violations,  or violations
with respect to which material refunds or restitution may be required,  cited in
any compliance report to any member of Whitney's  consolidated group as a result
of examination by any bank or bank holding company regulatory authority.

                  (c) No member of  Whitney's  consolidated  group is subject to
any written agreement,  memorandum or order or decree, formal or informal,  with
or by any bank or bank holding company regulatory authority.

         4.09.  Community  Reinvestment  Act.  WNB has  complied in all material
respects  with  the  provisions  of  the  CRA  and  the  rules  and  regulations
thereunder, has CRA ratings of not less than "satisfactory," and has received no
material  criticism  from  regulators  with  respect to  discriminatory  lending
practices,  and has no knowledge of any  conditions  or  circumstances  that are
likely  to  result  in CRA  ratings  of less  than  "satisfactory"  or  material
criticism from regulators with respect to discriminatory lending practices.

         4.10. Share Ownership.  As of the date of this Agreement,  no member of
Whitney's consolidated group owns (except in a fiduciary capacity) any shares of
Bank Common Stock.

         4.11. Accuracy of Statements.  No warranty or representation made or to
be made by any member of Whitney's  consolidated  group in this  Agreement or in
any  document   furnished  or  to  be  furnished  by  any  member  of  Whitney's
consolidated  group pursuant to this Agreement  contains or will contain,  as of
the date of this Agreement, the effective date of the Registration Statement (as
defined in Section 5.14 hereof) and the Closing Date,  an untrue  statement of a
material fact or an omission of a material fact necessary to make the statements
contained  herein and therein,  in light of the  circumstances in which they are
made, not misleading.

         Section 5. Covenants and Conduct of Parties Prior to the Effective Date

         The parties further covenant and agree as follows:

         5.01. (a) Investigations;  Planning.  Bank shall continue to provide to
Whitney and WNB and to their authorized  representatives  full access during all
reasonable  times to its  premises,  properties,  books and records  (including,
without  limitation,  all corporate minutes and stock transfer records),  and to
furnish  Whitney  and WNB and  such  representatives  with  such  financial  and
operating  data and other  information  of any kind  respecting its business and
properties as Whitney and WNB shall from time to time  reasonably  request.  Any
investigation  shall be  conducted  in a  manner  which  does  not  unreasonably
interfere  with the operation of the business of Bank.  Bank agrees to cooperate
with Whitney and WNB in  connection  with planning for the efficient and orderly
combination  of  the  parties  and  the  operation  of  Whitney  and  WNB  after
consummation of the Merger.  In the event of termination of this Agreement prior
to the Effective Date, Whitney and WNB shall,  except to any extent necessary to
assert any rights under this Agreement or the Merger Agreement,  return, without
retaining  copies  thereof,  or destroy  (and  certify to same under  penalty of
perjury)  all  confidential  or  non-public  documents,  work  papers  and other
materials  obtained from Bank in connection with the  transactions  contemplated
hereby  and  shall  keep  such  information  confidential,   not  disclose  such
information  to any other  person or entity  except as may be  required by legal
process, and not use such information in connection with its business, and shall
cause all of its employees,  agents and representatives to keep such information
confidential  and not to disclose  such  information  or to use it in connection
with its  business,  in each case unless and until such  information  shall come
into the public domain through no fault of Whitney or WNB. Whitney and WNB shall
continue to provide Bank's  executive  officers with access to their  respective
executive officers,  during normal business hours and upon reasonable notice, to
discuss the business  and affairs of Whitney and WNB to the extent  customary in
transactions of the nature contemplated by this Agreement.

                  (b)  Delivery  of  Schedules  of  Exceptions;  Due  Diligence.
Whitney, WNB and Bank stipulate that they have entered into this Agreement prior
to Bank's delivery of its schedule of exceptions to this Agreement (the

                                      A-14


<PAGE>


"Schedule  of  Exceptions")  and  prior to  Whitney's  completion  of  Whitney's
customary due diligence investigation of Bank. Bank shall deliver to Whitney, on
or before the 7th  business  day  following  the date  hereof,  its  Schedule of
Exceptions.  Upon such delivery,  such Schedules shall be initialed on behalf of
Whitney and Bank,  shall be appended hereto and shall form a part hereof for all
purposes.  If Bank fails to deliver its Schedule of  Exceptions on or before the
7th business day following the date hereof, Whitney may terminate this Agreement
without liability by giving written notice of termination to Bank. Whitney shall
have no less than ten business  days during  which to conduct its due  diligence
review,  which review may commence at any time  following  the execution of this
Agreement;  provided,  however,  that at least seven of the said  business  days
shall follow delivery of the Schedule of Exceptions (the "Review Period"). In no
event shall the Review Period exceed ten business days following Bank's delivery
of the Schedule of  Exceptions.  At or prior to expiration of the Review Period,
Whitney  shall elect,  by written  notice to Bank,  to either (a) proceed to the
Closing  (subject  to the  satisfaction  or waiver of all  other  conditions  to
Closing) or (b) terminate the Agreement (without liability to Bank except as set
forth in the last  sentence  of this  subsection  5.01(b)) if the results of the
review  conducted in accordance with the provisions of this  subsection  5.01(b)
hereof or any of the disclosures  contained in the Schedule of Exceptions causes
Whitney  to  determine,  in its good faith  judgment,  that one or more facts or
circumstances  exist  or is  likely  to  exist  which,  individually  or in  the
aggregate,  materially  and  adversely  impacts  one or more of the  benefits to
Whitney  of the  transactions  contemplated  by this  Agreement  so as to render
inadvisable the  consummation  of the Merger.  Absent timely delivery of written
notice  electing to terminate  this  Agreement,  Whitney shall be deemed to have
elected to proceed to the Closing,  subject to all other terms and conditions of
this  Agreement.  If, after  receiving  Bank's  Schedule of Exceptions,  Whitney
elects to  terminate  this  Agreement  pursuant to the seventh  sentence of this
Section 5.01(b), then notwithstanding any other provision hereof,  Whitney shall
reimburse Bank for the reasonable out-of-pocket expenses actually incurred by it
in connection with the transactions  contemplated by this Agreement  through the
date of termination up to a maximum of $150,000.

         5.02.  Cooperation  and Best Efforts.  Each of the parties  hereto will
cooperate  with the other  parties  and use its best  efforts to (a) procure all
necessary  consents and approvals of third  parties,  (b) complete all necessary
filings,  registrations,  applications,  schedules and certificates, (c) satisfy
all  requirements  prescribed by law for, and all  conditions  set forth in this
Agreement to, the consummation of the Merger and the  transactions  contemplated
hereby and by the Merger Agreement, and (d) effect the transactions contemplated
by this Agreement and the Merger Agreement at the earliest practicable date.

         5.03.  Information for, and Preparation of, Registration  Statement and
Proxy Statement. Each of the parties hereto will cooperate in the preparation of
the Registration  Statement referred to in Section 5.14 and a proxy statement of
Bank  (the  "Proxy  Statement")  which  complies  with the  requirements  of the
Securities  Act,  the  Exchange  Act,  the  rules  and  regulations  promulgated
thereunder  and other  applicable  federal  and state  laws,  for the purpose of
submitting  this   Agreement,   the  Merger   Agreement  and  the   transactions
contemplated hereby and thereby,  to Bank's  shareholders for approval.  Each of
the parties will as promptly as  practicable  after the date hereof  furnish all
such data and  information  relating  to it and its  subsidiaries  as any of the
other parties may reasonably  request for the purpose of including such data and
information in the Registration Statement and the Proxy Statement.

         5.04. Approval of Merger Agreement. Whitney, as the sole shareholder of
WNB,  shall take all action  necessary  to effect  shareholder  approval  of the
Merger Agreement.

         5.05.  Press Releases.  Whitney and Bank will cooperate with each other
in the  preparation  of any press  releases  announcing  the  execution  of this
Agreement or the consummation of the transactions  contemplated hereby.  Without
the prior  written  consent of the chief  executive  officer of the other party,
which consent will not be unreasonably  withheld,  neither Bank nor Whitney will
issue any press  release or other  written  statement  for  general  circulation
relating to the  transactions  contemplated  hereby,  except as may otherwise be
required by law and, if  practical,  prior notice of such release is provided to
the other parties. Whitney agrees that it will make a press release with respect
to the results of operations of Whitney and its  consolidated  group as promptly
as practicable  following  receipt of financial results covering at least thirty
(30)  days  of  post-Merger   combined  operations  of  Whitney  to  permit  the
termination of certain of the  restrictions on transfers of Whitney Common Stock
set forth in the Shareholder's Commitments referred to in Section 5.10.


                                      A-15

<PAGE>


         5.06.  Preservation  of  Business.  Bank will use its best  efforts  to
preserve  the  possession  and  control  of all of its  assets  other than those
consumed  or  disposed  of for  value in the  ordinary  course of  business,  to
preserve the goodwill of customers and others having business  relations with it
and to do nothing  knowingly  to impair its  ability  to keep and  preserve  its
business as it exists on the date of this Agreement.

         5.07.  Conduct of Business in the Ordinary  Course.  Bank shall conduct
its business only in the ordinary course consistent with past practices,  and it
shall not,  without the prior written consent of the chief executive  officer of
Whitney or his duly authorized designee:

                  (a)  declare,  set aside,  increase  or pay any  dividend,  or
declare or make any distribution on, or directly or indirectly combine,  redeem,
reclassify,  purchase,  or otherwise acquire, any shares of its capital stock or
authorize  the  creation or issuance  of or issue any  additional  shares of its
capital stock or any securities or obligations  convertible into or exchangeable
for its  capital  stock,  provided  that  this  subparagraph  shall not apply to
prevent (i) Bank from paying its regular  quarterly  cash dividend of $0.175 per
share or (ii) the  issuance  of  shares of Bank  Common  Stock  pursuant  to the
exercise  of Bank  Options  outstanding  as of the  date of  this  Agreement  to
purchase Bank Common Stock;

                  (b)  amend  its  charter  or  bylaws  or adopt  or  amend  any
resolution or agreement concerning indemnification of its directors or officers;

                  (c) enter into or modify any  agreement  so as to require  the
payment,  conditionally or otherwise,  of any salary, bonus, extra compensation,
pension or severance payment to any of its present or former directors, officers
or  employees  except such  agreements  as are  terminable  at will  without any
penalty or other  payment by it, or  increase  by more than 5% the  compensation
(including  salaries,  fees,  bonuses,  profit  sharing,   incentive,   pension,
retirement  or other  similar  benefits  and  payments) of any such person whose
annual  compensation would,  following such increase,  exceed $50,000 (provided,
however,  that Bank may, in a manner  consistent  with past  practices  and with
pooling of  interests  accounting  treatment  for the Merger,  (i)  increase its
corporate  401(k)  contribution  for  1997 in an  amount  not to  exceed  in the
aggregate more than $20,000 more than the Bank's total contribution to such plan
for 1996 and (ii) may  increase by no more than $50,000 in the  aggregate  bonus
payments to employees  having base salaries of $50,000 or more), or increase any
such compensation in any manner inconsistent with its past practices;

                  (d) except as  described  in the  Schedule  of  Exceptions  or
except in the ordinary course of business consistent with past practices,  place
or suffer to exist on any of its  assets or  properties  any  mortgage,  pledge,
lien, charge or other  encumbrance,  except those of the character  described in
Section  3.10  hereof,  or cancel any  material  indebtedness  owed to it or any
claims which it may have possessed,  or waive any right of substantial  value or
discharge or satisfy any material noncurrent liability;

                  (e)  acquire  another  business or merge or  consolidate  with
another entity,  or sell or otherwise  dispose of a material part of its assets,
except in the ordinary  course of business  consistent with past practices or as
described in the Schedule of Exceptions;

                  (f) commit or omit to do any act which act or  omission  would
cause a breach of any  covenant of Bank  contained  in this  Agreement  or would
cause any  representation  or warranty of Bank  contained  in this  Agreement to
become untrue,  as if each such  representation  and warranty were  continuously
made from and after the date hereof;

                  (g)  commit or fail to take any act which act or  omission  is
intended  or  reasonably  may be  expected  to  result in a  material  breach or
violation of any  applicable  law,  statute,  rule,  governmental  regulation or
order;

                  (h) fail to maintain  its books,  accounts  and records in the
usual manner on a basis consistent with that heretofore employed;

                  (i) fail to pay, or to make adequate provision in all material
respects for the payment of, all taxes,  interest payments and penalties due and
payable (for all periods up to the Effective Date, including that portion of its
fiscal year to and including the Effective Date) to any city, parish, state, the
United States or any other taxing authority,

                                      A-16

<PAGE>


except those being  contested in good faith by appropriate  proceedings  and for
which sufficient reserves have been established;

                  (j)  dispose  of  investment  securities,  except  in a manner
consistent with past practice,  but in no event having an aggregate market value
greater  than  5% of the  aggregate  book  value  of its  investment  securities
portfolio  on the  date of the  Latest  Balance  Sheet  or make  investments  in
non-investment  grade securities or which are inconsistent  with past investment
practices;

                  (k)  enter into any new line of non-banking business;

                  (l) (i) except as  described  in the  Schedule of  Exceptions,
charge  off  (except  as may  otherwise  be  required  by  law or by  regulatory
authorities  or by GAAP  consistently  applied) or sell  (except for a price not
materially less than the value thereof) any of its portfolio of loans, discounts
or financing  leases, or (ii) except as set forth on the Schedule of Exceptions,
sell any asset  held as other  real  estate or other  foreclosed  assets  for an
amount  materially  less than its book value at the date of the  Latest  Balance
Sheet;

                  (m) make any  extension  of credit  which,  when  added to all
other extensions of credit to a borrower and its affiliates, would exceed Bank's
applicable regulatory lending limits;

                  (n)  take  or  cause  to  be  taken  any  action  which  would
disqualify the Merger as a "pooling of interests" for accounting  purposes or as
a "reorganization" within the meaning of Section 368(a) of the Code; or

                  (o) agree or commit to do any of the foregoing.

         5.08.  Additional  Information.  Bank will provide  Whitney with prompt
written  notice of the  occurrence of any event which would have, or which could
reasonably be expected to result in, a Material  Adverse  Effect on Bank, or any
material  action  taken or  proposed to be taken by any  regulatory  agency with
respect to Bank.  Bank will  provide  Whitney  and WNB and  Whitney and WNB will
provide Bank with (a) prompt written notice of any material breach by such party
of any of its warranties, representations or covenants in this Agreement, (b) as
soon as they become available,  copies of any financial statements,  reports and
other documents of the type referred to in Sections 3.04 and 3.07 as to Bank and
subsection  4.04(a) and Section 4.06 as to Whitney,  and (c)  promptly  upon its
dissemination, any report disseminated to their respective shareholders.

         5.09. Bank Shareholder Approval. Bank's Board of Directors shall submit
this  Agreement  and the Merger  Agreement to its  shareholders  for approval in
accordance  with  applicable  law,  together with its  recommendation  that such
approval be given, at a special or regular  meeting of the  shareholders of Bank
duly  called and  convened  for that  purpose as soon as  practicable  after the
effective  date  of the  Registration  Statement  and  clearance  of  the  Proxy
Statement.  The  foregoing  obligations  of Bank  and  its  Board  of  Directors
specified in this  Section 5.09 are subject to the proviso in the last  sentence
of Section 5.12.

         5.10.  Restricted  Whitney Common Stock. Bank will use its best efforts
to obtain no later than twenty (20) days after the  execution of this  Agreement
an agreement from each person who is a director or executive  officer of Bank or
10%  beneficial  owner of securities of Bank who will receive  shares of Whitney
Common Stock by virtue of the Merger to the effect that such person (i) will not
dispose of any Whitney Common Stock received pursuant to the Merger in violation
of Rule  145 of the  Securities  Act or the  rules  and  regulations  of the SEC
thereunder or in a manner that would  disqualify the  transactions  contemplated
hereby  from  pooling  of  interests   accounting  or  tax-free   reorganization
treatment, (ii) will agree to escrow all shares of Whitney Common Stock received
pursuant  to the Merger  until  Whitney  has made a public  announcement  of the
financial  results  of at  least  30 days  of  post-Merger  combined  operations
following  the  Effective  Date and (iii) in the case of directors and executive
officers  (subject only to any fiduciary  obligation  that such  individuals may
have to persons other than Bank or their respective shareholders), will agree to
vote all  shares as to which  they have or share  voting  power in favor of this
Agreement and the Merger (the "Shareholder's Commitment").

                                      A-17

<PAGE>


         5.11.  Loan  Policy.  Bank will not make any  loans,  or enter into any
commitments to make loans, which vary materially from its written loan policies,
a true and  correct  copy of which loan  policies  will be  provided  to Whitney
concurrently  with Bank's  Schedule of  Exceptions,  provided that this covenant
shall  not  prohibit  Bank from  extending  or  renewing  credit or loans in the
ordinary  course of  business  consistent  with  past  lending  practices  or in
connection with the workout or renegotiation of loans in its loan portfolio.

         5.12.  No  Solicitations.  Prior to the  Effective  Time or  until  the
termination  of this  Agreement,  Bank shall not,  without the prior approval of
Whitney, directly or indirectly, solicit or initiate inquiries or proposals with
respect to, or,  except to the extent  determined  by the Board of  Directors of
Bank in good faith, after consultation with its financial advisors and its legal
counsel, to be required to discharge properly the directors' fiduciary duties to
Bank's shareholders,  furnish any information relating to, or participate in any
negotiations or discussions concerning,  any Acquisition Transaction (as defined
in Section  7.01) or any other  acquisition  or purchase of all or a substantial
portion of its assets, or of a substantial equity interest in it or withdraw its
recommendation   to  the   shareholders   of  Bank  of  the  Merger  or  make  a
recommendation of any Acquisition Transaction, or any other business combination
with it, other than as  contemplated by this Agreement (and in no event will any
such information be supplied except pursuant to a  confidentiality  agreement in
form  and  substance  as  to  confidentiality  substantially  the  same  as  the
confidentiality agreement between Bank and Whitney); and Bank shall instruct its
officers,  directors,  agents and  affiliates  to refrain  from doing any of the
above,  and will notify  Whitney  immediately if any such inquiries or proposals
are  received  by it, any such  information  is  requested  from it, or any such
negotiations  or  discussions  are sought to be initiated  with it or any of its
officers,  directors,  agents and affiliates;  provided,  however,  that nothing
contained  herein  shall be deemed to  prohibit  any officer or director of Bank
from taking any action that the Board of Directors of Bank  determines,  in good
faith after  consultation  with and receipt of written  advice from counsel,  is
required by law or is  required  to  discharge  his  fiduciary  duties to Bank's
shareholders.

         5.13.   Operating   Functions.   Bank  agrees  to   cooperate   in  the
consolidation of appropriate operating functions with Whitney to be effective on
the Effective  Date,  provided that the foregoing shall not be deemed to require
any action that,  in the opinion of Bank's Board of Directors,  would  adversely
affect its operations if the Merger was not consummated.

         5.14. Whitney Registration Statement. (a) Whitney will prepare and file
on Form S-4 a registration  statement (the  "Registration  Statement") under the
Securities Act (which will include the Proxy  Statement)  complying with all the
requirements of the Securities Act applicable  thereto,  for the purpose,  among
other things,  of  registering  the Whitney Common Stock which will be issued to
the holders of Bank Common Stock  pursuant to the Merger.  Whitney shall use its
best efforts to cause the Registration  Statement to become effective as soon as
practicable,  to qualify the Whitney  Common Stock under the  securities or blue
sky laws of such  jurisdictions  as may be required and to keep the Registration
Statement  and  such  qualifications  current  and in  effect  for so long as is
necessary to consummate the transactions  contemplated  hereby.  Bank shall file
the Proxy  Statement  with the OTS  concurrently  with  Whitney's  filing of the
Registration  Statement  and shall use its best efforts to obtain OTS  clearance
thereof as soon as practicable.  As a result of the  registration of the Whitney
Common Stock pursuant to the Registration Statement,  such stock shall be freely
tradeable by the  shareholders of Bank except to the extent that the transfer of
any shares of Whitney Common Stock received by  shareholders  of Bank is subject
to the  provisions  of Rule 145 under the  Securities  Act or  restricted  under
applicable tax or pooling of interests rules.

                  (b) Whitney  will  indemnify  and hold  harmless  Bank and its
directors,  officers  and other  persons,  if any,  who control  Bank within the
meaning of the  Securities  Act from and against any  losses,  claims,  damages,
liabilities  or  judgments,  joint or several,  to which they or any of them may
become  subject,  insofar  as such  losses,  claims,  damages,  liabilities,  or
judgments  (or  actions  in respect  thereof)  arise out of or are based upon an
untrue statement or alleged untrue statement of a material fact contained in the
Registration Statement or the Proxy Statement, or in any amendment or supplement
thereto,  or in any state application for  qualification,  permit,  exemption or
registration as a broker/dealer,  or in any amendment or supplement  thereto, or
arise out of or are based upon the omission or alleged omission to state therein
a  material  fact  required  to be  stated  therein  or  necessary  to make  the
statements  therein not misleading,  and will reimburse each such person for any
legal or other expenses  reasonably  incurred by such person in connection  with
investigating  or defending any such action or claim;  provided,  however,  that
Whitney shall not be liable, in any such case, to the extent that any such loss,
claim, damage, liability, or judgment (or action in respect

                                      A-18

<PAGE>


thereof)  arises out of or is based upon any untrue  statement or alleged untrue
statement or omission or alleged omission made in the Registration  Statement or
the Proxy Statement, or any such amendment or supplement thereto, or in any such
state application,  or in any amendment or supplement  thereto, in reliance upon
and in conformity with information  furnished to Whitney by or on behalf of Bank
or any officer, director or affiliate of Bank for use therein.

                  (c)  Promptly  after  receipt by an  indemnified  party  under
subparagraph  (b)  above of  notice  of the  commencement  of any  action,  such
indemnified  party  shall,  if a claim in respect  thereof is to be made against
Whitney under such  subparagraph,  notify Whitney in writing of the commencement
thereof.  In case any such action shall be brought against any indemnified party
and it shall  notify  Whitney  of the  commencement  thereof,  Whitney  shall be
entitled to participate therein and, to the extent that it shall wish, to assume
the defense thereof,  with counsel  reasonably  satisfactory to such indemnified
party,  and, after notice from Whitney to such indemnified party of its election
so to  assume  the  defense  thereof,  Whitney  shall  not  be  liable  to  such
indemnified  party  under  such  subparagraph  for any legal  expenses  of other
counsel or any other expenses  subsequently  incurred by such indemnified party;
provided,  however,  if Whitney  elects not to assume such defense or if counsel
for the  indemnified  party  advises  Whitney in writing that there are material
substantive issues which raise conflicts of interest between Whitney or Bank and
the indemnified party, such indemnified party may retain counsel satisfactory to
it and Whitney  shall pay all  reasonable  fees and expenses of such counsel for
the   indemnified   party   promptly  as   statements   therefor  are  received.
Notwithstanding  the  foregoing,  Whitney shall not be obligated to pay the fees
and expenses of more than one counsel for all parties  indemnified by Whitney in
respect of such claim unless in the reasonable  judgment of any such indemnified
party a conflict of interest exists between such indemnified party and any other
of such indemnified parties in respect to such claims.

                  (d) The provisions of subsections 5.14(b) and (c) are intended
for the  benefit  of, and shall be  enforceable  by,  the  parties  entitled  to
indemnification  thereunder  and each such  party's  heirs,  representatives  or
successors.

         5.15. Application to Regulatory Authorities.  Whitney shall prepare, as
promptly as  practicable,  all  regulatory  applications  and filings  which are
required to be made with respect to the Merger.

         5.16.  Revenue Ruling.  Whitney may elect to prepare (and in that event
Bank shall  cooperate  in the  preparation  of) a request  for a ruling from the
Internal  Revenue Service with respect to certain tax matters in connection with
the transactions contemplated by this Agreement and the Merger Agreement.

         5.17.  Bond for Lost  Certificates.  Upon receipt of notice from any of
its shareholders that a certificate representing Bank Common Stock has been lost
or destroyed  and prior to issuing a new  certificate,  Bank shall  require such
shareholder  to post a bond in such  amount  as is  sufficient  to  support  the
shareholder's agreement to indemnify Bank against any claim made by the owner of
such certificate, unless Whitney agrees to the waiver of such bond requirement.

         5.18. Dissenters. Bank shall give Whitney (i) prompt written notice of,
and a copy  of,  any  instrument  received  by Bank  with  respect  to any  Bank
shareholder's attempted assertion of dissenters rights, and (ii) the opportunity
to participate in all communications with respect thereto, should Whitney desire
to do so.

         5.19.  Withholding.  Whitney  shall be entitled to deduct and  withhold
from the  consideration  otherwise  payable to any holder of Bank  Common  Stock
after the  Effective  Time such  amounts as Whitney  may be  required  by law to
deduct and withhold  therefrom.  All such deductions and  withholdings  shall be
deemed for all purposes of this Agreement and the Merger  Agreement to have been
paid to the person with respect to whom such deduction and withholding was made.

         5.20.  Nasdaq Stock  Market.  Whitney shall cause the shares of Whitney
Common Stock to be issued in the Merger to be duly  authorized,  validly issued,
fully paid and non-assessable, free of any preemptive or similar right and to be
approved for quotation on the Nasdaq Stock Market  National  Market System prior
to or at the Effective Time.

         5.21.  Stock Options. (a) On the Effective Date, each Bank Option which
is  then  outstanding,  whether  or not exercisable, shall  cease to represent a
right to acquire shares of Bank Common Stock and shall be converted

                                      A-19

<PAGE>

automatically  into an option to purchase  shares of Whitney  Common Stock,  and
Whitney  shall  assume each Bank  Option,  in  accordance  with the terms of the
applicable Bank Option Plan and stock option agreement by which it is evidenced,
except  that from and after the  Effective  Date,  (i)  Whitney and its Board of
Directors or a duly authorized  committee  thereof shall be substituted for Bank
and Bank's Board of Directors or duly authorized committee thereof administering
such Bank Option Plan, (ii) each Bank Option assumed by Whitney may be exercised
solely for shares of Whitney Common Stock, (iii) the number of shares of Whitney
Common Stock  subject to such Bank Option shall be equal to the number of shares
of Bank  Common  Stock  subject  to such Bank  Option  immediately  prior to the
Effective Date  multiplied by the Exchange  Ratio,  provided that any fractional
shares of Whitney  Common  Stock  resulting  from such  multiplication  shall be
rounded down to the nearest  share,  and (iv) the per share exercise price under
each such Bank Option shall be adjusted by dividing the per share exercise price
under each such Bank Option by the Exchange  Ratio,  provided that such exercise
price shall be rounded up to the nearest cent. Notwithstanding clauses (iii) and
(iv) of the preceding  sentence,  each Bank Option which is an "incentive  stock
option"  shall be  adjusted  as  required  by Section  424 of the Code,  and the
regulations  promulgated  thereunder,  so as not to  constitute a  modification,
extension or renewal of the option  within the meaning of Section  424(h) of the
Code. Whitney and Bank agree to take all necessary steps to effect the foregoing
provisions of this subsection 5.21(a).

                  (b) As soon as practicable  after the Effective Date,  Whitney
shall deliver to each participant in each Bank Option Plan an appropriate notice
setting forth such participant's  rights pursuant thereto and the grants subject
to such  Bank  Option  Plan  shall  continue  in  effect  on the same  terms and
conditions,  including without  limitation the duration thereof,  subject to the
adjustments  required by  subsection  5.21(a)  hereof after giving effect to the
Merger.  As soon as practicable  after the Effective Date,  Whitney shall file a
registration  statement  on Form  S-3 or Form  S-8,  as the  case may be (or any
successor  or other  appropriate  forms),  with respect to the shares of Whitney
Common Stock subject to such options and shall use its  reasonable  best efforts
to maintain  the current  status of the  prospectus  or  prospectuses  contained
therein for so long as such options remain outstanding.

         5.22.    Continuing Indemnity; Insurance.  Whitney covenants and agrees
that:
                  (a)  All  rights  to   indemnification   (including,   without
limitation,  rights to mandatory advancement of expenses) and all limitations of
liability existing in favor of indemnified parties under Bank's charter,  bylaws
and indemnification plan as in effect as of the date of this Agreement (true and
complete  copies of which have been  provided to Whitney)  and under  applicable
federal law with respect to matters  occurring prior to or at the Effective Time
(an  "Indemnified  Party") shall  survive the Merger and shall  continue in full
force and effect,  without any amendment  thereto,  for a period concurrent with
the applicable  statute of limitations;  provided,  however,  that all rights to
indemnification  in respect of any claim asserted or made as to which Whitney is
notified  in  writing   within  such  period  shall  continue  until  the  final
disposition of such claim.

                  (b) Promptly after receipt by an  Indemnified  Party of notice
of the commencement of any action,  such Indemnified  Party shall, if a claim in
respect  thereof is to be made against  Whitney under this Section 5.22,  notify
Whitney in writing of the commencement thereof. In case any such action shall be
brought against any Indemnified Party,  Whitney shall be entitled to participate
therein  and, to the extent that it shall wish,  to assume the defense  thereof,
with counsel  reasonably  satisfactory  to such  Indemnified  Party,  and, after
notice from Whitney to such  Indemnified  Party of its election so to assume the
defense  thereof,  Whitney shall not be liable to such  Indemnified  Party under
such  subparagraph for any legal expenses of other counsel or any other expenses
subsequently incurred by such Indemnified Party;  provided,  however, if Whitney
elects  not to assume  such  defense  or if counsel  for the  Indemnified  Party
advises  Whitney in writing  that there are  material  substantive  issues which
raise conflicts of interest  between Whitney or Bank and the Indemnified  Party,
such Indemnified Party may retain counsel  satisfactory to it, and Whitney shall
pay all reasonable fees and expenses of such counsel for the  Indemnified  Party
promptly as statements  therefor are received.  Notwithstanding  the  foregoing,
Whitney  shall not be  obligated  to pay the fees and  expenses of more than one
counsel  for all  Indemnified  Parties in  respect  of such claim  unless in the
reasonable  judgment  of an  Indemnified  Party a conflict  of  interest  exists
between an  Indemnified  Party and any other  Indemnified  Parties in respect to
such claims.

                  (c)  Whitney  shall  use best  efforts  to cause  the  persons
serving as officers or directors of Bank immediately prior to the Effective Time
to be  covered  for a period of three (3) years from the  Effective  Time by the
directors'  and officers'  liability  insurance  policy  maintained by Bank with
respect to acts or omissions occurring prior

                                      A-20

<PAGE>


to or at the Effective  Time which were committed by such officers and directors
in their  capacity  as such;  provided  that  Whitney  may  substitute  therefor
policies  of at  least  the same  coverage  and  amounts  containing  terms  and
conditions which are no less  advantageous to such directors and officers,  and,
provided further that Whitney shall not be obligated to obtain such insurance if
the aggregate  premium therefor exceeds $26,250 (150% of the most current annual
premium paid by Bank for its directors and officers liability insurance).

                  (d) If Whitney or any of its  successors  or assigns (i) shall
consolidate  with or merge into any  corporation  or entity and shall not be the
continuing or surviving corporation or entity of such consolidation or merger or
(ii) shall transfer all or substantially all of its properties and assets to any
individual,  corporation  or other  entity,  then and in each such case,  proper
provisions  shall be made so that the  successors  and assigns of Whitney  shall
assume the obligations set forth in this Section 5.22.

                  (e) The provisions of this Section 5.22 are intended to be for
the benefit of, and shall be enforceable by, each  Indemnified  Party and his or
her heirs and representatives.

         5.23. Employees and Certain Other Matters. (a) All employees of Bank at
the  Effective  Time shall become or remain  employees  of WNB.  Whitney and WNB
reserve the right to terminate any such employee,  and to modify the job duties,
compensation and authority of such employee.  At the Effective Time, all persons
then  employed  by Bank shall be  eligible  for such  employee  benefits  as are
generally  available to employees of WNB having like tenure,  officer status and
compensation  levels  except  (i) all  executive  and  senior  level  management
bonuses,  stock options,  restricted  stock and similar benefits shall be at the
discretion of WNB's  Compensation  Committee and (ii) all Bank employees who are
employed at the Effective  Time shall be given full credit for all prior service
as employees of Bank provided, however, that all such employees shall be treated
as newly hired WNB employees (i.e.,  prior service credit with Bank shall not be
considered  in  determining  future  benefits  under  Whitney's or WNB's defined
benefit  pension  plan) for all purposes of Whitney's or WNB's  defined  benefit
pension plan.

                  (b) Bank shall  assign to Whitney at Closing  the  "Employment
Agreements"  between Bank and Lee J.  Guarisco,  William J. Barbera,  Stephen R.
Berthelot, Michael D. Templet and Jo Anne R. Bergeron (the "Covered Employees"),
dated as of September  30, 1993 or September  30, 1997, as the case may be, true
and  complete  copies  of which  have been  delivered  to  Whitney  prior to the
execution  of  this  Agreement  (the  "Change  in  Control  Agreements"),  which
assignment  shall be effective at the  Effective  Time.  At the  Effective  Time
Whitney  shall  assume  the  obligations  of Bank  under the  Change in  Control
Agreements in accordance  with Section 9 thereof.  Upon Whitney's  assumption of
the Change in Control Agreements,  the Date of Termination as defined in Section
1(d) of the Change in Control  Agreements shall be deemed the Effective Date and
the benefits payable under the Change in Control  Agreements shall be payable in
monthly installments commencing on the first business day of the month following
the Date of  Termination  as provided  in Section  5(b) of the Change in Control
Agreements.  At Closing each of the Covered Employees shall deliver to Whitney a
letter agreement agreeing to the termination of the Change in Control Agreements
and releasing Whitney from any obligations  thereunder other than payment of the
change  in  control  payments  described  above and  calculated  by  Whitney  in
accordance with the terms of the Change in Control Agreements.

         5.24.   Undertaking   to  File  Reports  and   Cooperate  in  Rule  144
Transactions.  Whitney  covenants  to use its best  efforts  to file in a timely
manner all material  required to be filed pursuant to Section 13, 14 or 15(d) of
the Exchange Act, or the rules and regulations promulgated thereunder,  so as to
continue the  availability  of Rule 144 for resales by affiliates of Bank of the
shares of Whitney Common Stock  received by them in the Merger.  In the event of
any proposed sale of such Whitney Common Stock by any such former shareholder of
Bank Common Stock who receives  shares of Whitney  Common Stock by reason of the
Merger,  Whitney  covenants  to use its best  efforts  to  cooperate  with  such
shareholder  so as to  enable  such  sale  to be  made in  accordance  with  the
requirements of Whitney's transfer agents and the reasonable requirements of the
broker through which such sale is proposed to be executed.  Without limiting the
generality of the foregoing,  Whitney agrees to furnish, upon request and at its
expense,  to the  extent it is able,  with  respect  to each such sale a written
statement  certifying that Whitney has filed all reports required to be filed by
it under the Exchange Act for a period of at least one year  preceding  the sale
of the proposed sale, and, in addition,  has filed the most recent annual report
required to be filed by it  thereunder.  Notwithstanding  anything  contained in
this Section 5.24, Whitney shall not be required to maintain the registration of
the Whitney Common Stock

                                      A-21

<PAGE>


under  Section 12 of the  Exchange  Act if it shall at any time be  entitled  to
deregister  those  shares  pursuant  to the  Exchange  Act  and  the  rules  and
regulations thereunder.

         5.25.  Whitney  Conduct of Business.  From the date hereof  through the
Closing,  without the prior written  consent of the chief  executive  officer of
Bank or his duly  authorized  designee,  Whitney  shall  not take or cause to be
taken any action that would  disqualify  the Merger as a "pooling of  interests"
for accounting  purposes or as a "reorganization"  within the meaning of Section
368(a) of the Code.

         Section 6.        Conditions of Closing

         6.01. Conditions of All Parties. The obligations of each of the parties
hereto to consummate the Merger are subject to the satisfaction of the following
conditions at or prior to the Closing:

                  (a)  Shareholder  Approval.  This  Agreement  and  the  Merger
Agreement shall have been duly approved by the shareholders of WNB and Bank.

                  (b)  Effective   Registration   Statement  and  Cleared  Proxy
Statement.  The Registration Statement shall have become effective and the Proxy
Statement  shall have been cleared prior to the mailing of the Proxy  Statement,
no stop order suspending the  effectiveness of the Registration  Statement shall
have been issued, and no proceedings for that purpose shall have been instituted
or, to the knowledge of any party, shall be contemplated, and Whitney shall have
received  all state  securities  laws  permits and  authorizations  necessary to
consummate the transactions contemplated hereby.

                  (c) No Restraining  Action. No action or proceeding shall have
been  threatened  or  instituted  before a court or other  governmental  body to
restrain or prohibit  the  transactions  contemplated  by this  Agreement or the
Merger  Agreement or to obtain  damages or other relief in  connection  with the
execution  of  such  agreements  or  the   consummation   of  the   transactions
contemplated  hereby or thereby;  and no  governmental  agency  shall have given
notice to any party hereto to the effect that  consummation of the  transactions
contemplated  by this  Agreement  or the Merger  Agreement  would  constitute  a
violation  of any law or that it intends to  commence  proceedings  to  restrain
consummation of the Merger.

                  (d)  Statutory   Requirements  and  Regulatory  Approval.  All
statutory   requirements   for  the  valid   consummation  of  the  transactions
contemplated  by this  Agreement  and the Merger  Agreement  (including  without
limitation the  satisfaction of all notice  requirements  set forth in 12 C.F.R.
563.22(b))  shall have been  fulfilled;  all  appropriate  orders,  consents and
approvals from all regulatory agencies and other governmental  authorities whose
order,  consent or  approval  is  required  by law for the  consummation  of the
transactions  contemplated by this Agreement and the Merger Agreement shall have
been  received;  and the terms of all requisite  orders,  consents and approvals
shall then permit the  effectuation of the Merger without  imposing any material
conditions  with  respect  thereto  except  for any  such  conditions  that  are
reasonably acceptable to Whitney in good faith.

                  (e) Tax  Opinion.  Whitney  and Bank shall have  received  the
opinion  of Arthur  Andersen  LLP,  dated as of the  Closing  Date,  in form and
substance reasonably  satisfactory to both of them, as to certain tax aspects of
the Merger,  including  an opinion  that the receipt of Whitney  Common Stock by
Bank's shareholders will not be a taxable event to such shareholders.

         6.02.  Additional  Conditions  of Whitney and WNB. The  obligations  of
Whitney and WNB to consummate the Merger are also subject to the satisfaction of
the following additional conditions at or prior to the Closing:

                  (a)   Representations,    Warranties   and   Covenants.    The
representations and warranties of Bank contained in this Agreement shall be true
and correct,  individually and in the aggregate,  on and as of the Closing Date,
with the same effect as though made on and as of such date, except to the extent
of  changes  permitted  by  the  terms  of  this  Agreement,  except  as to  any
representation or warranty which specifically  relates to an earlier date (which
must be true and correct as of such  earlier  date),  and except for breaches of
representations  or warranties  (other than the  representations  and warranties
contained in Sections 3.02 and 3.03) which,  individually  or in the  aggregate,
would not

                                      A-22

<PAGE>


have a Material Adverse Effect on Bank. Bank shall have in all material respects
performed  all  obligations  and complied  with all  covenants  required by this
Agreement and the Merger  Agreement to be performed or complied with by it at or
prior to the Closing. In addition,  Bank shall have delivered to Whitney and WNB
its certificate,  dated as of the Closing Date and signed by its chief executive
officer and chief financial  officer,  to the foregoing effect and to the effect
that,  except as specified in such  certificate,  such persons do not know,  and
have no  reasonable  grounds to know,  of any material  failure or breach of any
representation, warranty or covenant made by Bank in this Agreement.

                  (b) No Material Adverse Change.  There shall not have occurred
from the date of the  Latest  Balance  Sheet to the  Closing  Date any  event or
occurrence that has resulted in, or that could  reasonably be expected to result
in, a Material Adverse Effect on Bank.

                  (c)   Accountants'   Letters.   Whitney  shall  have  received
"comfort" letters from KPMG Peat Marwick LLP, independent public accountants for
Bank, dated, respectively,  within three (3) days prior to the date of the Proxy
Statement and within three (3) days prior to the Closing Date, in customary form
for transactions of this sort and in substance satisfactory to Whitney.

                  (d)  Opinion of  Counsel.  Whitney  shall have  received  from
Elias, Matz, Tiernan & Herrick L.L.P.,  counsel to Bank, an opinion, dated as of
the Closing Date,  customary in scope and in form and substance  satisfactory to
Whitney. In giving such opinions,  such counsel may rely as to questions of fact
upon certificates of one or more officers of Bank and governmental officials.

                  (e) Tax  Consequences  of Merger.  Whitney shall have received
satisfactory  assurances from its independent  accountants that the consummation
of the Merger will not be a taxable event to Whitney or WNB.

                  (f) Pooling of Interest. Prior to the expiration of the Review
Period and within  three (3) days prior to the Closing  Date,  KPMG Peat Marwick
LLP  shall  have  rendered  an  opinion  to  Whitney,   in  form  and  substance
satisfactory  to  Whitney,  to  the  effect  that,  based  upon  the  facts  and
circumstances  then known to KPMG Peat Marwick LLP, Whitney will be permitted to
account for the Merger as a pooling of interests.  Neither Whitney's independent
accountants  nor the SEC shall have  taken the  position  that the  transactions
contemplated  by this  Agreement  and the Merger  Agreement  do not  qualify for
pooling of interests accounting treatment.

                  (g)  Shareholder's   Commitment.  A  Shareholder's  Commitment
substantially  in the form specified on Exhibit 6.02(g) hereto (as  contemplated
by  Section  5.10)  shall  have been  executed  by each  person who serves as an
executive  officer or director of Bank or who  beneficially  owns 10% or more of
the Bank Common Stock  outstanding;  and Whitney  shall have  received from each
such person a written confirmation dated not earlier than five days prior to the
Closing  Date to the  effect  that  each  representation  made in such  person's
Shareholder's Commitment is true and correct as of the date of such confirmation
and that such  person  has  complied  with all of his or her  covenants  therein
through the date of such  confirmation;  in each case to the extent necessary to
ensure, in the reasonable judgment of Whitney, that the Merger will be accounted
for as a pooling of interests under GAAP and to promote compliance with Rule 145
under the Securities Act.

                  (h)  Termination  Letters.  A  letter  agreement  in form  and
substance  satisfactory to Whitney  agreeing to the termination of the Change in
Control Agreements and releasing Whitney from any obligations  thereunder except
as set forth in subsection 5.23(b) of this Agreement shall have been executed by
each Covered Employee and delivered to Whitney.

                  (i) Regulatory  Action. No adverse  regulatory action shall be
pending or threatened against Bank,  including (without limitation) any proposed
amendment to any existing agreement, memorandum, letter, order or decree, formal
or  informal,  between any  regulator  and Bank,  if such action  would or could
reasonably be expected to impose any material  liability on Whitney or interfere
with the conduct of the businesses of Whitney's consolidated group following the
Merger.

         6.03.  Additional  Conditions  of  Bank.  The  obligations  of  Bank to
consummate  the Merger are also  subject to the  satisfaction  of the  following
additional conditions at or prior to the Closing:

                                      A-23

<PAGE>


                  (a)   Representations,    Warranties   and   Covenants.    The
representations  and  warranties of Whitney and WNB contained in this  Agreement
shall be true and correct,  individually  and in the  aggregate,  on the Closing
Date, with the same effect as though made on and as of such date,  except to the
extent of changes  permitted  by the terms of this  Agreement,  except as to any
representation or warranty which specifically  relates to an earlier date (which
must be true and correct as of such  earlier  date),  and except for breaches of
representations  or warranties  (other than the  representations  and warranties
contained in Sections 4.03 and 4.05) which,  individually  or in the  aggregate,
would not have a material adverse effect on the financial conditions, results of
operations or business of Whitney's consolidated group taken as a whole. Each of
Whitney and WNB shall have in all material  respects  performed all  obligations
and  complied  with all  covenants  required  by this  Agreement  and the Merger
Agreement to be performed or complied with by it at or prior to the Closing.  In
addition,  each of Whitney and WNB shall have delivered to Bank its  certificate
dated as of the Closing Date and signed by its chief executive officer and chief
financial  officer,  to the foregoing  effect and to the effect that,  except as
specified in such certificate,  such persons do not know, and have no reasonable
grounds  to know,  of any  material  failure  or breach  of any  representation,
warranty or covenant made by Whitney or WNB in this Agreement.

                  (b) Opinion of Counsel. Bank shall have received from Milling,
Benson,  Woodward,  Hillyer,  Pierson & Miller,  L.L.P., counsel for Whitney and
WNB, an opinion,  dated as of the Closing  Date,  customary in scope and in form
and substance  satisfactory  to Bank.  In giving such opinion,  such counsel may
rely as to  questions  of fact  upon  certificates  of one or more  officers  of
Whitney or members of Whitney's consolidated group, and governmental officials.

                  (c) Opinion of  Investment  Bankers.  Bank shall have received
letters  from  Friedman,  Billings,  Ramsey & Co.,  Inc.  dated  the date of the
mailing of the Proxy Statement to shareholders of Bank and dated the date of the
meeting  of the  shareholders  of  Bank,  in each  case in  form  and  substance
satisfactory to Bank,  confirming such financial  advisor's prior opinion to the
Board of  Directors of Bank to the effect that the  consideration  to be paid in
the Merger is fair to its shareholders from a financial point of view.

                  (d) No Material Adverse Change.  There shall not have occurred
any material  adverse change from the date of Whitney's  Latest Balance Sheet to
the Closing Date in the financial  condition,  results of operations or business
of Whitney's consolidated group taken as a whole.

         6.04.  Waiver of  Conditions.  Any  condition to a party's  obligations
hereunder may be waived by that party,  other than the  conditions  specified in
subparagraphs  (a),  (b) and  (d) of  Section  6.01  hereof  and  the  condition
specified in subparagraph  (c) of Section 6.03 hereof.  The failure to waive any
condition hereunder shall not be deemed a breach of Section 5.02 hereof.

         Section 7.        Termination

         7.01.  Termination.  This  Agreement  and the Merger  Agreement  may be
terminated and the Merger  contemplated  herein abandoned at any time before the
Effective Time, whether before or after approval by the shareholders of Bank:

                  (a)  Mutual Consent.  By the mutual consent of the Boards of 
Directors of Whitney and Bank.

                  (b)  Material  Breach.  By the  Board of  Directors  of either
Whitney or Bank in the event of a material  breach by Bank (for a termination by
Whitney)  or by  either  Whitney  or WNB (for a  termination  by  Bank),  of any
representation  or  warranty  contained  in this  Agreement  or of any  covenant
contained  in this  Agreement,  which in either case cannot be, or has not been,
cured within 15 days after written  notice of such breach is given to the entity
committing  such breach,  provided  that the right to effect such cure shall not
extend beyond the date set forth in subparagraph (c) below.

                  (c)  Abandonment.  By the Board of Directors of either Whitney
or Bank if (i) all  conditions to Closing  required by Section 6 hereof have not
been met by or waived by Whitney or Bank by August  31,  1998,  or (ii) any such
condition cannot be met by August 31, 1998 and has not been waived by each party
in whose favor such condition

                                      A-24

<PAGE>


inures,  or (iii) if the Merger  has not been  consummated  by August 31,  1998,
provided that the failure to consummate the transactions  contemplated hereby is
not caused by the party electing to terminate pursuant to this clause (iii).

                  (d) Shareholder  Vote. By Whitney or Bank if this Agreement or
the  Merger  fails  to  receive  the  requisite  vote  at any  meeting  of  Bank
shareholders called for the purpose of voting thereon.

                  (e) Bank Recommendation.  By Whitney if the Board of Directors
of  Bank  (A)  shall  withdraw,  modify  or  change  its  recommendation  to its
shareholders of this Agreement or the Merger or shall have resolved to do any of
the foregoing; (B) shall have recommended to the shareholders of Bank (or in the
case of (iii)  approved)  any of the following  (being  referred to herein as an
"Acquisition  Transaction"):  (i) any  merger,  consolidation,  share  exchange,
business  combination or other similar  transaction (other than the transactions
contemplated  by this  Agreement);  (ii)  any  sale,  lease,  transfer  or other
disposition  of all or  substantially  all of the  assets of Bank;  or (iii) any
acquisition,  by any person or group, of the beneficial ownership of 15% or more
of any class of Bank capital stock;  or (C) shall have made any  announcement of
any agreement to do any of the foregoing.

                  (f) Acquisition  Transaction.  By Bank if Bank receives a bona
fide written offer with respect to an Acquisition  Transaction  and the Board of
Directors  of Bank  determines  in  good  faith,  after  consultation  with  its
financial  advisors  and  counsel,  that such  Acquisition  Transaction  is more
favorable to Bank's  shareholders  than the  transactions  contemplated  by this
Agreement.

                  (g) Prior to  Notification  Date.  By Whitney by delivery of a
notice to terminate this Agreement pursuant to Section 5.01.

                  (h) Regulatory Approval.  By Whitney or Bank if any applicable
regulatory authority formally disapproves the transactions  contemplated by this
Agreement or approves such  transactions  in a manner which does not satisfy the
requirements of the last clause of subsection 6.01(d) hereof.

                  (i) Average Whitney Market Price Below $40.00. By Bank, at any
time during the five-day period  following the end of the Pricing Period if both
of the following conditions are satisfied:  (i) the Average Whitney Market Price
shall be less than $40.00;  and (ii) (A) the  quotient  obtained by dividing the
Average  Whitney Market Price by $50.00 (such number being referred to herein as
the "Whitney  Ratio") shall be less than (B) the result  obtained by subtracting
0.15 from the quotient  obtained by dividing the average of the Index Prices (as
hereinafter  defined)  during  the  Pricing  Period  by the  Index  Price on the
Starting Date (as hereinafter defined);

subject,  however,  to the  following:  If Bank shall  elect to  terminate  this
Agreement  pursuant to this  subsection  7.01(i),  it shall give written  notice
thereof to Whitney  (provided  that such notice of election to terminate  may be
withdrawn at any time within the  aforementioned  five-day  period).  During the
five-day period  commencing with its receipt of such notice,  Whitney shall have
the  option,  in its sole and  absolute  discretion,  to elect to  increase  the
Exchange Ratio to equal the number (rounded to the nearest thousandth)  obtained
by dividing $63.48 by the Average  Whitney Market Price (without  adjustment for
any  postponement of the Closing Date pursuant to this  subsection  7.01(i)) and
the Closing Date shall be postponed by the minimum amount of time necessary,  if
any, to accommodate  Whitney's  election of such option (i.e.,  up to a five-day
period).  If Whitney so elects within such five-day period, it shall give prompt
written  notice to Bank of such  election and the Exchange  Ratio,  whereupon no
termination  shall have occurred  pursuant to this  subsection  7.01(i) and this
Agreement  shall remain in effect in  accordance  with its terms  (except as the
Exchange  Ratio  shall  have  been  so  modified),  and any  references  in this
Agreement  to  "Exchange  Ratio"  shall  thereafter  be  deemed  to refer to the
Exchange Ratio as adjusted pursuant to this subsection 7.01(i).

                  For purposes of this Agreement, the following terms shall have
the meanings indicated.

                  "Index  Group"  shall mean the bank holding  companies  listed
below,  the common  stocks of all of which  shall be  publicly  traded and as to
which  there  shall not have been,  since the  Starting  Date and the end of the
Pricing  Period,  any public  announcement  of a proposal for such company to be
acquired  or for such  company  to  acquire  another  company  or  companies  in
transactions with a value exceeding 25% of the acquiror's market capitalization.
In the event  that any such  company or  companies  are  removed  from the Index
Group, the weights (which have been

                                      A-25

<PAGE>


determined based upon the number of shares of outstanding common stock reflected
on the last quarterly report on Form 10-Q for each of the respective  companies)
shall be  redistributed  proportionately  for purposes of determining  the Index
Price.  The bank holding  companies  and the weights  attributed  to them are as
follows:

                Bank Holding Companies                               % Weighting
                ----------------------                               -----------
                Deposit Guaranty                                          4.35
                Jackson, Mississippi

                Hancock                                                   1.73
                Gulfport, Mississippi
               
                Trustmark                                                 3.41
                Jackson, Mississippi

                First American                                            7.77
                Nashville, Tennessee

                First Tennessee                                          10.55
                Memphis, Tennessee

                Union Planters                                           11.63
                Memphis, Tennessee

                AmSouth                                                  11.86
                Birmingham, Alabama

                Compass                                                   7.11
                Birmingham, Alabama

                Regions                                                  14.77
                Birmingham, Alabama

                Southtrust                                               15.30
                Birmingham, Alabama

                Hibernia                                                  6.51
                New Orleans, Louisiana

                First Commercial                                          5.01
                Little Rock, Arkansas

                Total                                                   100.00%
                                                                        ========

                  "Index Price" on a given date shall mean the weighted  average
(weighted in  accordance  with the factors  listed  above) of the closing  sales
prices of the companies composing the Index Group.

                  "Starting  Date" shall mean the first trading day  immediately
following  the  date  of the  first  public  announcement  of  entry  into  this
Agreement.

                  If any  company  belonging  to the  Index  Group  declares  or
effects  a  stock  dividend,   reclassification,   recapitalization,   split-up,
combination,  exchange of shares,  or similar  transaction  between the Starting
Date and the end of the Pricing Period,  the prices for the common stock of such
company  shall be  appropriately  adjusted  for the  purposes  of  applying  any
provision of this subsection 7.01(i) or subsection 7.01(j).

                                      A-26


<PAGE>

                  (j) Average Whitney Market Price Above $60.00. By Whitney,  at
any time during the five-day  period  following the end of the Pricing Period if
each of the following  conditions are satisfied:  (i) the Average Whitney Market
Price shall be greater than $60.00;  (ii) (A) the quotient  obtained by dividing
the Average Whitney Market Price by $50.00 (such number being referred to herein
as the "Whitney  Ratio") shall be greater than (B) the result obtained by adding
0.15 to the quotient obtained by dividing the average of the Index Prices during
the Pricing  Period by the Index Price on the Starting  Date;  and (iii) none of
the events  specified in subsection  2.01(a)(i)(D)  of this Agreement shall have
occurred and be continuing;

subject,  however,  to the  following:  If Whitney shall elect to terminate this
Agreement  pursuant to this  subsection  7.01(j),  it shall give written  notice
thereof to Bank  (provided  that such  notice of election  to  terminate  may be
withdrawn at any time within the  aforementioned  five-day  period).  During the
five-day period commencing with its receipt of such notice,  Bank shall have the
option, in its sole and absolute discretion, to elect to have the Exchange Ratio
reduced to equal the number  (rounded  to the  nearest  thousandth)  obtained by
dividing $81.12 by the Average Whitney Market Price (without  adjustment for any
postponement  of the Closing Date pursuant to this  subsection  7.01(j)) and the
Closing Date shall be postponed by the minimum amount of time necessary, if any,
to accommodate  Bank's election of such option (i.e., up to a five-day  period).
If Bank so elects  within such  five-day  period,  it shall give prompt  written
notice  to  Whitney  of such  election  and the  Exchange  Ratio,  whereupon  no
termination  shall have occurred  pursuant to this  subsection  7.01(j) and this
Agreement  shall remain in effect in  accordance  with its terms  (except as the
Exchange  Ratio  shall  have  been  so  modified),  and any  references  in this
Agreement  to  "Exchange  Ratio"  shall  thereafter  be  deemed  to refer to the
Exchange Ratio as adjusted pursuant to this subsection 7.01(j).



             (The remainder of this page left blank intentionally.)

                                      A-27

<PAGE>


         7.02.  Effect  of  Termination;  Survival.  Upon  termination  of  this
Agreement pursuant to this Section 7, the Merger Agreement shall also terminate,
and this Agreement and the Merger Agreement shall be void and of no effect,  and
there shall be no liability by reason of this Agreement or the Merger Agreement,
or the  termination  thereof,  on the  part of any  party  or  their  respective
directors,  officers, employees, agents or shareholders except for any liability
of  a  party  hereto   arising  out  of  (i)  an   intentional   breach  of  any
representation,  warranty  or covenant  in this  Agreement  prior to the date of
termination, except if such breach was required by law or by any thrift, bank or
bank holding company regulatory  authority or (ii) a breach of any covenant that
survives  pursuant to the following  sentence.  The following  provisions  shall
survive  any  termination  of this  Agreement:  the second to last  sentence  of
subsection 5.01(a);  subsections 5.14(b) and (c); Section 7.02; Section 7.03 and
Section 8.

         7.03.  Termination  Fee. If this  Agreement is terminated by Whitney or
Bank pursuant to subsection  7.01(e) or  subsection  7.01(f),  then Bank (or its
successor)  shall pay or cause to be paid to Whitney  upon demand a  termination
payment of $3,000,000, payable in same day funds.

         Section 8.        Miscellaneous

         8.01. Notices.  Any notice,  communication,  request,  reply, advice or
disclosure   (hereinafter  severally  and  collectively  "notice")  required  or
permitted  to be given or made by any party to another in  connection  with this
Agreement  or  the  Merger  Agreement  or the  transactions  herein  or  therein
contemplated  must be in writing  and may be given or served by  depositing  the
same in the United States mail, postage prepaid and registered or certified with
return receipt requested, or by delivering the same to the address of the person
or  entity to be  notified,  or by  sending  the same by a  national  commercial
courier service (such as Airborne Express,  Federal Express,  Emery Air Freight,
Network  Courier,  Purolator or the like) for next-day  delivery  provided  such
delivery is confirmed in writing by such courier.  Notice  deposited in the mail
in the manner  hereinabove  described  shall be  effective  48 hours  after such
deposit,  and  notice  delivered  in person or by  commercial  courier  shall be
effective at the time of delivery.  A party delivering  notice shall endeavor to
obtain a receipt therefor.  For purposes of notice, the addresses of the parties
shall, until changed as hereinafter provided, be as follows:

                  If to Whitney or WNB:

                           Whitney Holding Corporation
                           Attention:  Mr. William L. Marks
                           Chairman of the Board and CEO
                           228 St. Charles Avenue
                           New Orleans, Louisiana 70130

                  With copies to:

                           Whitney National Bank
                           Legal Department
                           Attention:  Joseph S. Schwertz, Jr.
                           228 St. Charles Avenue
                           New Orleans, Louisiana 70130


                  If to Bank:

                           Meritrust Federal Savings Bank
                           Attention:  Lee J. Guarisco
                           Vice Chairman
                           200 West Second Street
                           Thibodaux, Louisiana 70303


                                      A-28


<PAGE>

                  With copies to:

                           Gerald F. Heupel, Jr., Esq.
                           Elias, Matz, Tiernan & Herrick L.L.P.
                           12th Floor
                           734 15th Street, N.W.
                           Washington, D.C. 20005


         8.02.  Waiver.  The  failure by any party to enforce  any of its rights
hereunder shall not be deemed to be a waiver of such rights,  unless such waiver
is an express written waiver which has been signed by the waiving party.  Waiver
of any one breach  shall not be deemed to be a waiver of any other breach of the
same or any other provision hereof.

         8.03.  Expenses.  Except as otherwise  provided  herein,  regardless of
whether the Merger is consummated, all expenses incurred in connection with this
Agreement and the Merger Agreement and the transactions  contemplated hereby and
thereby shall be borne by the party incurring them.

         8.04.  Headings.  The  headings in this  Agreement  have been  included
solely  for  reference  and shall not be  considered  in the  interpretation  or
construction of this Agreement.

         8.05.  Annexes,  Exhibits  and  Schedules.  The  annexes,  exhibits and
schedules  to this  Agreement  are  incorporated  herein by this  reference  and
expressly made a part hereof.

         8.06. Integrated Agreement.  This Agreement,  the Merger Agreement, the
exhibits and schedules hereto and all other documents and instruments  delivered
in accordance  with the terms hereof  constitute  the entire  understanding  and
agreement  among the parties  hereto with respect to the subject  matter hereof,
and there are no agreements,  understanding,  restrictions,  representations  or
warranties  among the parties other than those set forth herein or therein,  all
prior agreements and understandings being superseded hereby.

         8.07.  Choice of Law.  The  validity of this  Agreement  and the Merger
Agreement,  the construction of their terms and the  determination of the rights
and duties of the parties  hereto in accordance  therewith  shall be governed by
and construed in accordance  with the laws of the United States and those of the
State of  Louisiana  applicable  to contracts  made and to be  performed  wholly
within such State.

         8.08.  Parties in Interest.  This Agreement shall bind and inure to the
benefit of the  parties  hereto and their  respective  successors  and  assigns,
except that this  Agreement may not be  transferred  or assigned by Bank without
the prior written consent of the other parties hereto, including any transfer or
assignment  by  operation  of law.  Nothing  in  this  Agreement  or the  Merger
Agreement is intended or shall be construed to confer upon or to give any person
other than the parties  hereto any rights or remedies under or by reason of this
Agreement or the Merger Agreement,  except as expressly  provided for herein and
therein.

         8.09.  Amendment.  The  parties  may,  by  mutual  agreement  of  their
respective Boards of Directors,  amend, modify or supplement this Agreement, the
Merger  Agreement,  or any exhibit or schedule of any of them, in such manner as
may be  agreed  upon by the  parties  in  writing,  at any time  before or after
approval  of  this  Agreement  and the  Merger  Agreement  and the  transactions
contemplated  hereby and thereby by the shareholders of the parties hereto. This
Agreement  and any exhibit or schedule to this  Agreement  may be amended at any
time and, as amended, restated by the chief executive officers of the respective
parties (or their  respective  designees)  without the necessity for approval by
their respective Boards of Directors or shareholders,  to correct  typographical
errors or to change erroneous  references or cross  references,  or in any other
manner which is not material to the substance of the  transactions  contemplated
hereby.

         8.10.  Counterparts.  This  Agreement may be executed by the parties in
any number of counterparts,  each of which shall be deemed an original,  but all
of which taken together shall constitute one and the same document.

                                      A-29

<PAGE>


         8.11. Non-Survival of Representations and Warranties;  Covenants.  None
of the  representations  and  warranties in this  Agreement or in any instrument
delivered  pursuant  hereto shall survive the Effective  Time. Each party hereby
agrees  that  its  sole  right  and  remedy  with  respect  to any  breach  of a
representation  or warranty or covenant by the other party shall be not to close
the transactions  described herein if such breach results in the nonsatisfaction
of a  condition  set  forth in  Section 6 hereof;  provided,  however,  that the
foregoing  shall not be  deemed  to be a waiver of any claim for an  intentional
breach of a  representation,  warranty or  covenant or for fraud  except if such
breach  is  required  by law or by any  thrift,  bank  or bank  holding  company
regulatory  authority;  it being  understood  that a  disclosure  in any closing
certificate  provided in  accordance  with  subparagraph  (a) of Section 6.02 or
subparagraph  (a)  of  Section  6.03  hereof   concerning  an  inaccuracy  of  a
representation  or warranty  shall not of itself be deemed to be an  intentional
breach of such  representation  or  warranty.  The  covenants of the parties set
forth herein shall  survive the Effective  Time in  accordance  with their terms
and, in the absence of a specified  survival term, for the applicable statute of
limitations.

         IN WITNESS  WHEREOF,  the parties have executed  this  Agreement on the
date first above written.

WHITNEY HOLDING CORPORATION

BY:      /s/ William L. Marks
         ----------------------------
         William L. Marks
ITS:     Chairman and CEO

WHITNEY NATIONAL BANK

BY:      /s/ William L. Marks
         ----------------------------
         William L. Marks
ITS:     Chairman and CEO

MERITRUST FEDERAL SAVINGS BANK

BY:      /s/ Lee J. Guarisco
         ----------------------------
ITS:     Vice Chairman
         ----------------------------
                                      A-30


<PAGE>

                                                              Exhibit 1.01(a) to
                                                    Agreement and Plan of Merger


                               AGREEMENT OF MERGER

                                       OF

                         MERITRUST FEDERAL SAVINGS BANK

                                      INTO

                              WHITNEY NATIONAL BANK


         THIS AGREEMENT OF MERGER (this "Agreement") is made and entered into as
of this _____ day of  _______________,  1997,  between Meritrust Federal Savings
Bank,  a  federally  chartered  stock  savings  bank,  domiciled  at  Thibodaux,
Louisiana ("Bank"),  and Whitney National Bank, a national banking  association,
organized  under  the  laws  of the  United  States  ("WNB"  or  the  "Receiving
Association").

         WHEREAS,  as required by law, at least two-thirds of the members of the
respective Boards of Directors of WNB and Bank (collectively called the "Merging
Associations")  deem it  advisable  that Bank be  merged  with and into WNB (the
"Merger"), as provided in this Agreement and in the Agreement and Plan of Merger
dated  November  20, 1997 (the  "Plan"),  between the Merging  Associations  and
Whitney Holding Corporation,  a Louisiana corporation ("Whitney"),  of which WNB
is a  wholly-owned  subsidiary,  which sets forth,  among other things,  certain
representations,  warranties,  covenants and conditions  relating to the Merger;
and

         WHEREAS,  as required by law, at least two-thirds of the members of the
respective  Boards of Directors of the Merging  Associations  wish to enter into
this  Agreement  and submit it to the  respective  shareholders  of the  Merging
Associations  for  approval in the manner  required by law and,  subject to said
approval and to approval by the Office of the  Comptroller  of the Currency (the
"OCC")  being duly given and to such other  approvals as may be required by law,
to effect the Merger, all in accordance with the provisions of this Agreement.

         NOW THEREFORE,  in  consideration  of the mutual benefits to be derived
from this Agreement and the Merger, the parties hereto agree as follows:

         1. The Merger.  At the Effective Time (as defined in Section 2 hereof),
Bank shall be merged with and into WNB under the Articles of Association of WNB,
existing  Charter No. 14977,  pursuant to the provisions of, and with the effect
provided in, 12 U.S.C.  ss.215a and ss.215c,  and Whitney National Bank shall be
the  resulting  institution  in such merger.  At the  Effective  Time,  WNB, the
Receiving Association,  shall continue to be a national banking association, and
its business  shall  continue to be conducted at its main office in New Orleans,
Louisiana,   and  at  its  legally  established  branches  (including,   without
limitation,  the legally  established offices from which Bank conducted business
immediately  prior to the  Effective  Time and any other  approved  but unopened
branches at the Effective Time). The Articles of Association of WNB shall not be
altered or amended by virtue of the Merger,  and the incumbency of the directors
and  officers  of WNB shall not be  affected  by the Merger nor shall any person
succeed to such positions by virtue of the Merger.

         2. Effective  Time.  The Merger shall become  effective at the close of
business  on the date on which this  Agreement  is  executed  by the  respective
officers  of the Merging  Associations  in the name and on behalf of the Merging
Associations (the "Effective Time").

         3.1  Conversion of Capital Stock of Bank.  Subject to the provisions of
this Section 3.1, at the Effective Time, by virtue of the Merger and without any
action on the part of the holders thereof,  the shares of Bank common stock, par
value $1.00 per share ("Bank Common Stock"), shall be converted as follows:

                                      A-31

<PAGE>

                  (a) Exchange Ratio. (i) Except for shares of Bank Common Stock
held by Bank as treasury  shares (other than in a fiduciary  capacity),  if any,
which shall by reason of the Merger be canceled ("Treasury Shares"), and subject
to the provisions of Section 3.1(b) relating to fractional  shares,  each issued
and  outstanding  share of Bank Common Stock shall be converted  into and become
that number of shares of Whitney  common stock,  no par value  ("Whitney  Common
Stock"),  that  is  equal  to  (A) if  the  Average  Whitney  Market  Price  (as
hereinafter  defined) is greater  than or equal to $46.00 and less than or equal
to $54.00,  the  quotient  (rounded to the  nearest  thousandth)  determined  by
dividing (x) $73.00 by (y) the Average Whitney Market Price,  (B) if the Average
Whitney  Market  Price is less than  $46.00,  1.587  shares,  (C) if the Average
Whitney   Market   Price  is  greater  than  $54.00,   1.352   shares,   or  (D)
notwithstanding any of the foregoing, if prior to the Effective Date (x) Whitney
issues a press  release  announcing  that it is  negotiating  or has  executed a
letter of intent or definitive merger or other acquisition agreement as a result
of which Whitney will cease to be an  independent,  publicly  traded company and
(y) Whitney has not thereafter issued a press release announcing the termination
of such  negotiations,  letter of intent or  definitive  agreement  prior to the
Closing, 1.352 shares (the "Exchange Ratio").

                           (ii)  Average Whitney Market Price.  The "Average 
Whitney Market Price" shall be the average  of the  closing  per share  trading
prices  of  Whitney  Common  Stock (adjusted  appropriately for any stock split,
stock dividend,  recapitalization, reclassification or similar transaction which
is effected, or for which a record date  occurs) on the twenty (20) trading days
preceding  the fifth  trading day immediately  prior to the Effective Date, as
reported in the Wall Street Journal (corrected for typographical errors).

                  (b) Fractional  Shares.  In lieu of the issuance of fractional
shares of Whitney Common Stock,  each shareholder of Bank, upon surrender of his
or her certificate that immediately prior to the Effective Time represented Bank
Common Stock, other than Treasury Shares,  shall receive a cash payment (without
interest)  equal to the fair market value at the Effective  Time of any fraction
of a share of Whitney  Common  Stock to which such holder  would be entitled but
for this provision.  For purposes of calculating  such payment,  the fair market
value of a fraction of a share of Whitney  Common  Stock at the  Effective  Time
shall be such fraction multiplied by the Average Whitney Market Price.

                  (c) Exchange of  Certificates.  After the Effective Time, each
holder of an outstanding certificate or certificates  theretofore representing a
share or shares of Bank Common Stock, other than Treasury Shares, upon surrender
thereof to the  exchange  agent  selected  by Whitney  (the  "Exchange  Agent"),
together with duly executed  transmittal  materials provided pursuant to Section
3.1(e) or upon  compliance by the holder or holders  thereof with the procedures
of the Exchange  Agent with respect to lost,  stolen or destroyed  certificates,
shall be  entitled to receive in  exchange  therefor  any payment due in lieu of
fractional  shares and a certificate or certificates  representing the number of
whole  shares of Whitney  Common Stock into which such  holder's  shares of Bank
Common Stock were converted.  Until so surrendered,  each outstanding Bank stock
certificate shall be deemed for all purposes,  other than as provided below with
respect to the payment of dividends or other  distributions  (if any) in respect
of Whitney  Common  Stock,  to  represent  the number of whole shares of Whitney
Common  Stock into which such  holder's  shares of Bank Common  Stock shall have
been converted.  Whitney may, at its option, refuse to pay any dividend or other
distribution  to  holders  of  unsurrendered   Bank  stock   certificates  until
surrendered; provided, however, that upon the surrender and exchange of any Bank
stock  certificates  there shall be paid, to the extent not previously  paid, to
the record holders of the Whitney stock certificates issued in exchange therefor
the amount,  without interest,  of accumulated  dividends and distributions,  if
any,  which have become  payable  with  respect to the number of whole shares of
Whitney  Common  Stock into which the shares of Bank  Common  Stock  theretofore
represented by such  certificates  shall have been exchanged.  The provisions of
this  Section  3.1(c) are  intended  for the benefit of the holders of shares of
Bank  Common  Stock  and  shall be  enforceable  by such  holders  and each such
holder's heirs, representatives and successors.

                  (d) Deposit.  As of the Effective Time,  Whitney shall deposit
or cause to be deposited with the Exchange Agent (i)  certificates  representing
the  shares of  Whitney  Common  Stock  and (ii) the cash in lieu of  fractional
shares to be issued and paid,  as the case may be, in exchange  for  outstanding
shares of Bank Common Stock pursuant to this Section 3.1.


                                      A-32

<PAGE>

                  (e) Transmittal Materials.  Promptly after the Effective Time,
Whitney shall send or cause to be sent to each former  shareholder  of record of
Bank  at  the  Effective  Time  transmittal  materials  for  use  in  exchanging
certificates of Bank Common Stock for certificates of Whitney Common Stock.

                  (f) Bank  Options.  Each Bank  Option (as defined in the Plan)
under the Bank Option Plans (as defined in the Plan) that is  outstanding at the
Effective  Time shall be converted  into an option to acquire  shares of Whitney
Common Stock in the manner set forth in Section 5.21 of the Plan.

         3.2.  Closing Transfer Books. At the Effective Time, the stock transfer
books of Bank shall be closed and no  transfer  of shares of Bank  Common  Stock
shall be made thereafter.

         4.  Capital  Stock of the  Receiving  Association.  The  shares  of the
capital  stock  of  WNB,  the  Receiving  Association,  issued  and  outstanding
immediately  prior to the Effective Time shall, at the Effective Time,  continue
to be issued and outstanding, and no additional shares of WNB shall be issued as
a result of the Merger.  Therefore, at the Effective Time, the amount of capital
stock of WNB,  the  Receiving  Association,  shall be  $3,358,400,  divided into
134,336 shares of common stock, par value $25.00 per share.

         5. Assets and Liabilities of the Merging Associations. At the Effective
Time,  the  corporate  existence  of each of the Merging  Associations  shall be
merged into and continued in WNB, the Receiving Association,  and such Receiving
Association  shall be deemed to be the same  corporation  as each bank,  savings
institution  or banking  association  participating  in the Merger.  All rights,
franchises, and interests of the individual Merging Associations in and to every
type of  property  (real,  personal  and mixed)  and  choses in action  shall be
transferred  to and vested in the Receiving  Association by virtue of the Merger
without any deed or other transfer. The Receiving  Association,  upon the Merger
and  without  any order or other  action on the part of any court or  otherwise,
shall  hold and  enjoy  all  rights  of  property,  franchises,  and  interests,
including appointments,  designations, and nominations, and all other rights and
interests as trustee,  executor,  administrator,  registrar of stocks and bonds,
guardian of estates,  and in every other fiduciary capacity,  in the same manner
and to the same extent as such rights,  franchises,  and interests  were held or
enjoyed  by any one of the  Merging  Associations  at the  time  of the  Merger,
subject to the conditions  specified in 12 U.S.C. Section 215a(f). The Receiving
Association  shall,  from and  after  the  Effective  Time,  be  liable  for all
liabilities of the Merging Associations.

         6. Savings Accounts and Deposits.  All savings accounts and deposits of
Bank and WNB shall be and  continue to be savings  accounts  and deposits of the
Receiving  Association,  without  change in their  respective  terms,  maturity,
minimum  required  balances or withdrawal  value. As of the Effective Time, each
savings  account  or deposit of Bank and WNB shall be  considered  for  interest
purposes as a savings account or deposit of the Receiving  Association  from the
time said savings account or deposit was opened in Bank and WNB and at all times
thereafter  until  such  account or  deposit  ceases to be a savings  account or
deposit of the Receiving Association.

         7.  Liquidation  Accounts.  Any  liquidation  accounts of Bank shall be
assumed by the Receiving Association at the Effective Time.

         8. Shareholder  Approval;  Conditions;  Filing. This Agreement shall be
submitted to the  shareholders of the Merging  Associations for ratification and
confirmation in accordance with applicable provisions of law. The obligations of
the Merging  Associations to effect the Merger shall be subject to all the terms
and  conditions of the Plan.  If the  shareholders  of the Merging  Associations
ratify and  confirm  this  Agreement,  then the fact of such  approval  shall be
certified  hereon by the Secretary of each of the Merging  Associations and this
Agreement,  so approved and  certified,  shall,  as soon as is  practicable,  be
signed and  acknowledged  by the  President  or Chairman of the Board of each of
them. As soon as may be practicable  thereafter,  this Agreement,  so certified,
signed and acknowledged,  shall be delivered to the OCC for filing in the manner
required  by law.  In no event shall the Merger  become  effective  prior to the
delivery  of  notification  of the  Merger to the  Office of Thrift  Supervision
pursuant to 12 C.F.R. ss.563.22(b).

         9.  Miscellaneous.  This  Agreement  may,  at  any  time  prior  to the
Effective Time, be amended or terminated as provided in the Plan. This Agreement
may be executed in counterparts,  each of which shall be deemed to constitute an
original.  This Agreement  shall be governed and  interpreted in accordance with
federal law and the applicable laws

                                      A-33

<PAGE>


of the State of  Louisiana.  This  Agreement  may be assigned only to the extent
that the party  seeking to assign it is permitted to assign its interests in the
Plan,  and subject to the same effect as any such  assignment.  The  headings in
this  Agreement are inserted for  convenience  only and are not intended to be a
part  of  or  to  affect  the  meaning  or  interpretation  of  this  Agreement.
Capitalized  terms used herein and not otherwise defined have the meanings given
to them in the Plan.

         IN WITNESS  WHEREOF,  this Agreement has been executed by a majority of
the directors of each of the Merging Associations,  as of the day and year first
above written.



                            [Signature lines omitted]

                                      A-34


<PAGE>

                                                              Exhibit 6.02(g) to
                                                    Agreement and Plan of Merger


                   [Letter from directors, executive officers
                    and 10% beneficial shareholders of Bank]

                                     [date]


Mr. William L. Marks
Chairman and CEO
Whitney Holding Corporation
228 St. Charles Avenue
New Orleans, La. 70130

Dear Mr. Marks:

         In  consideration  of the benefits I will receive as a  shareholder  of
Meritrust  Federal  Savings Bank  ("Bank") from the Agreement and Plan of Merger
dated  __________________,  1997 (the "Agreement")  among Bank,  Whitney Holding
Corporation ("Whitney") and Whitney National Bank, I agree as follows:

         [If a director or executive officer of Bank: I agree to vote all shares
of Bank common stock that I own  beneficially or of record in favor of approving
the Agreement and the merger to be effected  thereby,  unless Whitney is then in
breach or default in any material  respect as regards any  covenant,  agreement,
representation  or  warranty  as to it  contained  in the  Agreement;  provided,
however, that nothing in this sentence shall be deemed to require me to vote any
shares of Bank common  stock over which I have or share voting power solely in a
fiduciary  capacity on behalf of any person other than Bank, if I determine,  in
good faith after  consultation  with and  receipt of written  advice of counsel,
that such a vote  would  cause a breach  of my  fiduciary  duties to such  other
person.]

         I  [further]  agree  that I will  not,  without  the prior  consent  of
Whitney,  transfer any of my shares of Bank common stock within 30 days prior to
the  Effective  Date,  as that  term is set  forth in the  Agreement,  except by
operation of law, by will, or under the laws of descent and distribution.

         I also  acknowledge that Whitney intends to account for the acquisition
of Bank as a pooling of interests.  I understand  that my transfer of any shares
of Bank common stock within 30 days prior to the Effective  Date and any Whitney
common  stock  that I  receive  in  exchange  for Bank  common  stock,  prior to
Whitney's  publication  of  financial  results  covering at least 30 days of its
combined  operations  following the Effective  Date, may impair this  accounting
treatment. Therefore, I agree that, without the prior consent of Whitney, I will
not,  except by  operation  of law,  by will,  or under the laws of descent  and
distribution,  sell or otherwise  transfer any shares of Bank common stock,  (or
the Whitney  common stock which I receive in exchange for my Bank common  stock)
over which I hold the power to sell,  transfer,  pledge or otherwise alienate or
encumber  during the period  commencing 30 days prior to the Effective  Date and
ending at such time as:

          a.   the merger has become effective and Whitney has published 
               financial results covering at least 30 days of its combined
               operations following the Effective Date, or

          b.   the Agreement terminates.

         I authorize  Whitney or its authorized  agent to hold the  certificates
representing  the  shares of Whitney  common  stock into which my shares of Bank
common  stock  will be  converted  until the date that I am free to trade  those
shares in accordance  with the foregoing  paragraph.  I understand  that upon my
delivery of  certificates  to the  Exchange  Agent in  compliance  with  Section
2.01(c)  of the  Agreement,  I will  have the right to vote the  Whitney  shares
received in

                                      A-35

<PAGE>

exchange therefore and receive dividends in respect thereof during the time that
Whitney or its agent  holds the  certificates  retained  by it  pursuant to this
letter agreement.

         I certify  that all of the shares of Bank common  stock of which I hold
the power to sell,  transfer,  pledge or  otherwise  alienate  or  encumber  are
represented by the following certificates:

         Certificate No.                    No. of shares








         I am aware that Whitney intends to structure the acquisition of Bank in
a manner consistent with Section 368 of the Internal Revenue Code. I acknowledge
that  applicable tax regulations  require  "continuity of interest" in order for
the merger to qualify  under Section 368. I have no present plan or intention to
dispose of any  Whitney  common  stock  that I will  receive in the merger to be
effected pursuant to the Agreement.

         I also  understand  the resale or other  disposition  of Whitney common
stock that I receive may be governed by Rule 145 of the SEC under the Securities
Act of 1933,  as amended,  which Rule has been  explained  to me. I agree not to
sell  any of the  Whitney  common  stock  to be held by me in  violation  of the
Securities Act of 1933, as amended, or the rules and regulations thereunder.

         This  letter  shall   constitute  an   irrevocable   agreement  of  the
undersigned,  and may be revoked only upon the mutual  agreement of the parties.
The agreements  contained in this letter will terminate upon any  termination of
the Agreement under Section 7 of the Agreement.


                                 Sincerely,



                                 [Director, Executive Officer or
                                 10% beneficial shareholder]


                                      A-36


<PAGE>



                                   APPENDIX B
           Fairness Opinion of Friedman, Billings, Ramsey & Co., Inc.




<PAGE>




             [Letterhead of Friedman, Billings, Ramsey & Co., Inc.]




   
                              March 9, 1998
    

Board of Directors
Meritrust Federal Savings Bank
200 West Second Street
Thibodaux, LA  70301

Board of Directors:

You have requested that Friedman,  Billings, Ramsey & Co., Inc. ("FBR"), provide
you with its  opinion as to the  fairness,  from a financial  point of view,  to
holders of common  stock  ("Stockholders")  of  Meritrust  Federal  Savings Bank
("Meritrust" or the "Company") of the Exchange Ratio (as hereinafter defined) to
be received by such holders pursuant to the Agreement and Plan of Merger between
Meritrust,  Whitney Holding Corporation ("WHC") and Whitney National Bank ("WNB"
and  collectively  with WHC,  "Whitney"),  dated as of  November  20,  1997 (the
"Merger  Agreement"),  pursuant to which  Meritrust will be merged with and into
WNB (the "Merger"). The Merger Agreement provides, among other things, that each
issued and  outstanding  share of common stock of  Meritrust  shall be converted
into the right to receive from Whitney  shares of Whitney  common stock equal to
(a) if the Average Whitney Market Price (defined below) is greater than or equal
to $46.00 and less than or equal to $54.00, the quotient (rounded to the nearest
thousandth) determined by dividing (i) $73.00 by (ii) the Average Whitney Market
Price,  (b) if the  Average  Whitney  Market  Price is less than  $46.00,  1.587
shares,  (c) if the Average  Whitney Market Price is greater than $54.00,  1.352
shares, or (d) notwithstanding any of the foregoing,  if, prior to the effective
date of the  Merger,  Whitney  issues  a  press  release  announcing  that it is
negotiating  or has  executed a letter of intent or  definitive  merger or other
acquisition  agreement  as a  result  of  which  Whitney  will  cease  to  be an
independent, publicly traded company and (y) Whitney has not thereafter issued a
press release announcing the termination of such negotiations,  letter of intent
or definitive agreement prior to the closing of the transactions contemplated by
the Merger Agreement,  1.352 shares (the "Exchange Ratio"). The Merger Agreement
defines  "Average  Whitney Market Price" as the average of the closing per share
trading prices of Whitney  common stock  (adjusted  appropriately  for any stock
split, stock dividend, recapitalization, reclassification or similar transaction
which is  effected,  or for which a record date  occurs) on the 20 trading  days
preceding the fifth trading day  immediately  prior to the effective date of the
Merger,  as reported in the Wall Street  Journal  (corrected  for  typographical
errors). Additionally,  each option to purchase shares of Meritrust common stock
shall be converted into an option to purchase  Whitney common stock,  subject to
certain  terms and  conditions.  The Merger  Agreement  will be  considered at a
meeting of the Stockholders of Meritrust. The terms and conditions of the Merger
are more fully set forth in the Merger Agreement.

In delivering this opinion, FBR has completed the following tasks:

1.   reviewed  Whitney Annual Report to  Stockholders  for the fiscal year ended
     December  31, 1996 and Whitney  Annual  Reports on Form 10-K filed with the
     Securities and Exchange  Commission  (the "SEC") for the fiscal years ended
     December 31, 1994 through 1996;

                                       B-1


<PAGE>

   
Board of Directors
Meritrust Federal Savings Bank
March 9, 1998
Page 2
    


     reviewed  Whitney  Quarterly  Reports on Form 10-Q for the fiscal  quarters
     ended March 31, 1997,  June 30, 1997 and  September 30, 1997 filed with the
     SEC;

2.   reviewed  Meritrust Annual Report to Stockholders for the fiscal year ended
     December 31, 1996 and Meritrust Annual Report on Form 10-KSB filed with the
     Office of Thrift Supervision ("OTS") for the fiscal year ended December 31,
     1996;  reviewed  Meritrust  Quarterly Reports on Form 10-QSB for the fiscal
     quarters  ended March 31, 1997,  June 30, 1997 and September 30, 1997 filed
     with the OTS;

3. reviewed Meritrust's  unaudited financial statements for the ten months ended
October 31, 1997;

4.   reviewed the reported  market  prices and trading  activity for the Whitney
     common stock for the period January 1994 through November 19, 1997;

5.   discussed  the financial  condition,  results of  operations,  business and
     prospects of Meritrust  and Whitney with the  managements  of Meritrust and
     Whitney;

6.   compared the results of operations and financial condition of Meritrust and
     Whitney with those of certain  publicly-traded  financial  institutions (or
     their holding  companies)  that FBR deemed to be  reasonably  comparable to
     Meritrust or Whitney, as the case may be;

7.   reviewed the financial terms, to the extent publicly available,  of certain
     acquisition transactions that FBR deemed to be reasonably comparable to the
     Merger;

8.   reviewed the financial terms, to the extent publicly available,  of certain
     acquisition transactions entered into by Whitney;

9.   reviewed a copy of the Merger Agreement; and

10.  performed  such  other  analyses  and  reviewed  and  analyzed  such  other
     information as FBR deemed appropriate.

In rendering this opinion,  FBR did not assume  responsibility for independently
verifying,  and did not independently verify, any financial or other information
concerning Meritrust and Whitney furnished to it by Meritrust or Whitney, or the
publicly-available  financial and other information regarding Meritrust, Whitney
and other financial  institutions (or their holding companies).  FBR has assumed
that all such  information  is accurate and complete.  FBR has further relied on
the assurances of management of Meritrust and Whitney that they are not aware of
any facts that would make such financial or other  information  relating to such
entities  inaccurate  or  misleading.  With respect to financial  forecasts  for
Meritrust  provided to FBR by its management,  FBR has assumed,  for purposes of
this  opinion,  that  the  forecasts  have  been  reasonably  prepared  on bases
reflecting the best available  estimates and judgments of such management at the
time of preparation as to the future financial performance of Meritrust. FBR has
assumed that there has been no material change in Meritrust's assets,  financial
condition, result of operations, business or prospects since September 30, 1997.
FBR did not undertake an

                                       B-2


<PAGE>


   
Board of Directors
Meritrust Federal Savings Bank
March 9, 1998
Page 3
    


independent  appraisal of the assets or  liabilities  of  Meritrust  nor was FBR
furnished  with any such  appraisals.  FBR is not an expert in the evaluation of
allowances  for  loan  losses,  was not  requested  to and did not  review  such
allowances,  and was not requested to and did not review any  individual  credit
files of Meritrust.  FBR's  conclusions and opinion are  necessarily  based upon
economic,  market and other conditions and the information made available to FBR
as of the date of this opinion.  FBR expresses no opinion on matters of a legal,
regulatory, tax or accounting nature related to the Merger.

FBR, as part of its  institutional  brokerage,  research and investment  banking
practice, is regularly engaged in the valuation of securities and the evaluation
of transactions in connection with mergers and acquisitions of commercial banks,
savings  institutions and financial  institution holding companies,  initial and
secondary offerings,  mutual-to-stock  conversions of savings  institutions,  as
well  as  business   valuations  for  other  corporate  purposes  for  financial
institutions  and real estate  related  companies.  FBR has  experience  in, and
knowledge of, the  valuation of bank and thrift  securities in Louisiana and the
rest of the United States.

FBR has acted as a financial  advisor to Meritrust in connection with the Merger
and will  receive  a fee for  services  rendered  which is  contingent  upon the
consummation of the Merger.  In the ordinary  course of FBR's  business,  it may
effect  transactions  in the  securities  of  Meritrust  or Whitney  for its own
account  and/or for the accounts of its customers and,  accordingly,  may at any
time  hold  long or  short  positions  in such  securities.  From  time to time,
principals and/or employees of FBR may also have positions in the securities.

Based upon and subject to the foregoing, as well as any such other matters as we
consider relevant, it is FBR's opinion, as of the date hereof, that the Exchange
Ratio is fair, from a financial point of view, to the Stockholders of Meritrust.

         This letter is solely for the information of the Board of Directors and
Stockholders of Meritrust and may not be relied upon by any other person or used
for any other  purpose,  reproduced,  disseminated,  quoted  from or referred to
without  FBR's prior  written  consent;  provided,  however,  this letter may be
referred  to and  reproduced  in its  entirety  in proxy  materials  sent to the
Stockholders in connection with the solicitation of approval for the Merger.


                                      Very truly yours,

                                      FRIEDMAN, BILLINGS, RAMSEY & CO., INC.
                                          
   
                                      /s/ Friedman, Billings, Ramsey & Co., Inc.
    

                              
                                       B-3

<PAGE>

                                     PART II

                     INFORMATION NOT REQUIRED IN PROSPECTUS


Item 20.          Indemnification of Directors and Officers

         Section 83 of the Louisiana Business  Corporation Law ("LBCL") provides
in part that a corporation  may indemnify  any  director,  officer,  employee or
agent  of  the  corporation  against  expenses   (including   attorneys'  fees),
judgments, fines and amounts paid in settlement actually and reasonably incurred
by him in connection with any action, suit or proceeding to which he is or was a
party or is  threatened  to be made a party  (including  any action by or in the
right of the  corporation),  if such action  arises out of his acts on behalf of
the  corporation and he acted in good faith not opposed to the best interests of
the corporation,  and, with respect to any criminal action or proceeding, had no
reasonable cause to believe his conduct was unlawful.

         The indemnification provisions of the LBCL are not exclusive;  however,
no corporation may indemnify any person for willful or intentional misconduct. A
corporation has the power to obtain and maintain insurance,  or to create a form
of  self-insurance  on  behalf  of  any  person  who is or was  acting  for  the
corporation,  regardless of whether the  corporation  has the legal authority to
indemnify the insured person against such liability.

         The  Articles  of   Incorporation   and  By-laws  of  Whitney   Holding
Corporation  ("Whitney") provide for  indemnification  for directors,  officers,
employees  and agents or former  directors,  officers,  employees  and agents of
Whitney to the full extent permitted by Louisiana law.

         Whitney  maintains an insurance  policy  covering the  liability of its
directors and officers for actions taken in their official capacity.

         Insofar as indemnification for liabilities arising under the Securities
Act of 1933, as amended (the  "Securities  Act"), may be permitted to directors,
officers and controlling  persons of Whitney pursuant to the foregoing provision
or otherwise, Whitney has been advised that in the opinion of the Securities and
Exchange  Commission such  indemnification is against public policy as expressed
in the Securities Act and is, therefore, unenforceable.

Item 21.          Exhibits and Financial Statement Schedules

         (a)      Exhibits

                  The following  Exhibits are filed as part of this Registration
Statement:

                  Exhibit No.       Description

                       2      The Plan of Merger (included in the Registration
                              Statement as Appendix A and incorporated herein
                              by reference).

                       5      Opinion of Milling, Benson, Woodward, Hillyer,
                              Pierson & Miller, L.L.P.

                       8      Form of opinion of Arthur Andersen LLP as to 
                              certain tax matters.

   
                      23.1    Consent of Arthur Andersen LLP dated March 5,
                              1998.*
                              
                      23.2    Consent of KPMG Peat Marwick LLP dated March 4,
                              1998.*

                      23.3    Consent of Friedman, Billings, Ramsey & Co., Inc. 
                              dated March 4, 1998.*
    


                                      II-1

<PAGE>


                      23.4    Consent of Milling, Benson, Woodward, Hillyer,
                              Pierson & Miller, L.L.P.,  included in Exhibit 5.

                      24      Powers of Attorney of directors of Whitney Holding
                              Corporation  (contained on page S-1 of the 
                              Registration Statement).

   
                      99.1    Form of Proxy of the Bank*
    

                      99.2    The following  portions of Meritrust Federal 
                              Savings Bank's annual report to stockholders for
                              the fiscal year ended December 31, 1996: selected
                              consolidated financial data (page 5); management's
                              discussion and analysis of financial condition and
                              results of operations (pages 6 through 20); and
                              audited consolidated financial statements and
                              notes thereto (pages 21 through 44).

   
                    _________________

                    * Filed with this Amendment. All other listed exhibits have
                      been filed previously.
    

         (b)      Financial Statement Schedules

                  None


                                      II-2


<PAGE>


Item 22.          Undertakings

         The undersigned Registrant hereby undertakes as follows:

         (1) To respond to requests  for  information  that is  incorporated  by
reference into the Prospectus pursuant to Items 4, 10(b), 11, or 13 of Form S-4,
within one business day of receipt of such request, and to send the incorporated
documents  by first class mail or other  equally  prompt  means.  This  includes
information contained in documents filed subsequent to the effective date of the
Registration Statement through the date of responding to the request.

         (2) To supply by means of a  post-effective  amendment all  information
concerning a transaction,  and the company being acquired involved therein, that
was not the subject of and included in the Registration Statement when it became
effective.

         (3) That for purposes of determining any liability under the Securities
Act, each filing of the Registrant's  annual report pursuant to Section 13(a) or
Section 15(d) of the Securities  Exchange Act of 1934 (the "Exchange Act") (and,
where  applicable,  each  filing of an employee  benefit  plan's  annual  report
pursuant to Section 15(d) of the Exchange Act) that is incorporated by reference
in the Registration Statement shall be deemed to be a new registration statement
related to the securities  offered therein,  and the offering of such securities
at that time shall be deemed to be the initial bona fide offering thereof.

         (4) That prior to any public  reoffering of the  securities  registered
hereunder  through  use of a  prospectus  which  is a part of this  Registration
Statement,  by any person or party who is deemed to be an underwriter within the
meaning  of  Rule  145(c),  the  Registrant   undertakes  that  such  reoffering
prospectus   will  contain  the   information   called  for  by  the  applicable
registration  form with  respect to  reofferings  by  persons  who may be deemed
underwriters,  in addition to the  information  called for by the other Items of
the applicable form.

         (5) That every  prospectus  (i) that is filed pursuant to paragraph (4)
immediately preceding, or (ii) that purports to meet the requirements of Section
10(a)(3) of the  Securities  Act and is used in  connection  with an offering of
securities  subject to Rule 415,  will be filed as a part of an amendment to the
Registration  Statement and will not be used until such  amendment is effective,
and that, for purposes of determining  any liability  under the Securities  Act,
each such  post-effective  amendment  shall be  deemed to be a new  registration
statement relating to the securities  offered therein,  and the offering of such
securities  at that time shall be deemed to be the  initial  bona fide  offering
thereof.

         (6)  Insofar  as  indemnification  for  liabilities  arising  under the
Securities Act may be permitted to directors,  officers and controlling  persons
of the  Registrant,  the  Registrant has been advised that in the opinion of the
Securities and Exchange Commission such indemnification is against public policy
as expressed in the  Securities  Act and is,  therefore,  unenforceable.  In the
event that a claim for indemnification  against such liabilities (other than the
payment by the Registrant of expenses incurred or paid by a director, officer or
controlling  person of the Registrant in the  successful  defense of any action,
suit or proceeding) is asserted by such director,  officer or controlling person
in connection with the securities being registered,  the Registrant will, unless
in the  opinion  of its  counsel  the matter  has been  settled  by  controlling
precedent,  submit to a court of appropriate  jurisdiction  the question whether
such  indemnification  by it is  against  public  policy  as  expressed  in  the
Securities Act and will be governed by the final adjudication of such issue.

         (7) To deliver or cause to be delivered  with the  prospectus,  to each
person to whom the  prospectus  is sent or given,  the latest  annual  report to
security  holders  that is  incorporated  by  reference  in the  prospectus  and
furnished  pursuant to and meeting the  requirements of Rule 14a-3 or Rule 14c-3
under the Exchange Act, and to deliver,  or cause to be delivered to each person
to whom the  prospectus is sent or given,  the latest  quarterly  report that is
specifically incorporated by reference in the prospectus to provide such interim
financial information.


                                      II-3


<PAGE>

                                   SIGNATURES

   
         Pursuant  to  the  requirements  of  the  Securities  Act  of  1933, as
amended, the Registrant has duly caused this Amendment No. 1 to its Registration
Statement  to  be  signed  on  its  behalf  by  the  undersigned, thereunto duly
authorized, in the  City  of New Orleans, State of Louisiana, on this 4th day of
March, 1998.
    

                                            WHITNEY HOLDING CORPORATION


                                            By:  /s/ William L. Marks
                                               ---------------------------------
                                                     William L. Marks
                                                     Chairman of the Board
   

                               
         Pursuant to the requirements of the Securities Act of 1933, as amended,
this Amendment No. 1 to Registration Statement  has been signed by the following
persons in the capacities and on the dates indicated.
    

<TABLE>
<S>                                                 <C>                                            <C>
         /s/ William L. Marks                       Chairman of the Board                          March 4, 1998
- --------------------------------------              and Chief Executive Officer
             William L. Marks                     

          /s/ R. King Milling                       Director and President                         March 4, 1998
- --------------------------------------
              R. King Milling
     

        /s/ Edward B. Grimball                      Executive Vice President and                   March 4, 1998
- --------------------------------------                Chief Financial Officer
            Edward B. Grimball                     (Principal Financial Officer
                                                 and Principal Accounting Officer)


                   *                                        Director                                 March 4, 1998
- --------------------------------------
          Guy C. Billups, Jr.


                   *                                        Director                                 March 4, 1998
- --------------------------------------
       Harry J. Blumenthal, Jr.


                   *                                        Director                                 March 4, 1998
- --------------------------------------
         Joel B. Bullard, Jr.

                   *                                        Director                                 March 4, 1998
- --------------------------------------
             James M. Cain


                   *                                        Director                                 March 4, 1998
- --------------------------------------
          Angus R. Cooper, II


                   *                                        Director                                 March 4, 1998
- --------------------------------------
         Robert H. Crosby, Jr.

</TABLE>

                                       S-1


<PAGE>
<TABLE>
<S>                                                       <C>                                      <C>


                   *                                        Director                               March 4, 1998
- --------------------------------------
          Richard B. Crowell

 
                   *                                        Director                               March 4, 1998
- --------------------------------------
          Camille A. Cutrone


                   *                                        Director                               March 4, 1998
- --------------------------------------
           William A. Hines


                   *                                       Director                                March 4, 1998
- --------------------------------------
           Robert E. Howson


                   *                                       Director                                March 4, 1998
- --------------------------------------
             John J. Kelly


                   *                                       Director                                March 4, 1998
- --------------------------------------
          E. James Kock, Jr.


                   *                                       Director                                March 4, 1998
- --------------------------------------
           Alfred S. Lippman


                   *                                       Director                                March 4, 1998
- --------------------------------------
           John G. Phillips


                   *                                       Director                                March 4, 1998
- --------------------------------------
         John K. Roberts, Jr.


                   *                                       Director                                March 4, 1998
- --------------------------------------
           W. P. Snyder III


                   *                                       Director                                March 4, 1998
- --------------------------------------
           Carroll W. Suggs


                   *                                       Director                                March 4, 1998
- --------------------------------------
           Warren K. Watters

</TABLE>

   
By:  /s/ R. King Milling
     ----------------------------------
         R. King Milling
         Agent and Attorney-in-Fact
    

                                       S-2


<PAGE>
                                                                               
                                  EXHIBIT INDEX

                                                                    Sequentially
Exhibit                                                                 Numbered
Number              Description                                             Page


   
2       The Plan of Merger (included in the  Registration  Statement
        as Appendix A and incorporated herein by reference).
5       Opinion of Milling, Benson, Woodward, Hillyer, Pierson &
        Miller, L.L.P.
8       Form of opinion of Arthur Andersen LLP as to certain tax
        matters.
23.1    Consent of Arthur Andersen LLP dated March 5, 1998.*
23.2    Consent of KPMG Peat Marwick LLP dated March 4, 1998.*
23.3    Consent of Friedman, Billings, Ramsey & Co., Inc. dated
        March 4, 1998.*
23.4    Consent of Milling, Benson, Woodward, Hillyer, Pierson &
        Miller, L.L.P., included in Exhibit 5.
24      Powers of Attorney of directors of Whitney Holding
        Corporation (contained on page S-1 of the Registration
        Statement).
99.1    Form of Proxy of the Bank*
99.2    The following portions of Meritrust Federal Savings Bank's
        annual report to stockholders for the fiscal year ended
        December 31, 1996: selected consolidated financial data
        (page 5); management's discussion and analysis of financial
        condition and results of operations (pages 6 through 20); and
        audited consolidated financial statements and notes thereto
        (pages 21 through 44).
_______________________
*Filed with this Amendment. All other listed exhibits have been filed
 previously.
    
<PAGE>


                                                                    EXHIBIT 23.1


                    CONSENT OF INDEPENDENT PUBLIC ACCOUNTANTS


As independent  public  accountants,  we hereby consent to the  incorporation by
reference in this  registration  statement of our report dated  January 16, 1997
(except with respect to the matter  discussed in the first paragraph of Note 16,
as to  which  the  date is  February  28,  1997)  included  in  Whitney  Holding
Corporation's  Form  10-K for the  year  ended  December  31,  1996,  and to all
references to our Firm included in this registration statement.



     
                                      /s/ Arthur Andersen LLP


   
New Orleans, Louisiana
March 5, 1998
    



<PAGE>


                                                                    EXHIBIT 23.2


                        CONSENT OF KPMG PEAT MARWICK LLP


   
The Board of Directors
Whitney Holding Corporation:
    

We consent to the use of our report incorporated herein by reference and to the
reference to our firm under the heading "Experts" in the prospectus.


/s/ KPMG Peat Marwick LLP


   
Baton Rouge, Louisiana
March 4, 1998
    



<PAGE>




                                                                    EXHIBIT 23.3


                CONSENT OF FRIEDMAN, BILLINGS, RAMSEY & CO., INC.


   
March 4, 1998
    


Whitney Holding Corporation
228 St. Charles Avenue
New Orleans, LA 70130

Gentlemen:

This  letter  will  constitute  our  consent  to the  inclusion  of our  opinion
regarding the  acquisition of Meritrust  Federal Savings Bank by Whitney Holding
Corporation  ("Whitney"),  in Whitney's  registration statement on Form S-4 (the
"Registration  Statement")  and to the  inclusion of the summary of such opinion
and the use of our name in the Registration  Statement.  In giving the foregoing
consent,  we do not admit that we come  within  the  category  of persons  whose
consent is required  under Section 7 of the  Securities  Act of 1933, as amended
(the  "Securities  Act"),  or the rules and  regulations  of the  Securities and
Exchange  Commission  (the  "Commission")  with  respect  to any  part  of  such
Registration  Statement  within the meaning of the term "experts" as used in the
Securities  Act and the  rules and  regulations  of the  Commission  promulgated
thereunder.

                                      Very truly yours,

                                      FRIEDMAN, BILLINGS, RAMSEY & CO., INC.

                                      /s/ Eugene S. Weil

                                      Eugene S. Weil
                                      Managing Director




<PAGE>





                                                                    EXHIBIT 99.1


                 MERITRUST FEDERAL SAVINGS BANK REVOCABLE PROXY


   
         THIS  PROXY  IS  SOLICITED  ON  BEHALF  OF THE  BOARD OF  DIRECTORS  OF
MERITRUST FEDERAL SAVINGS BANK ("MERITRUST") FOR USE ONLY AT THE SPECIAL MEETING
OF  STOCKHOLDERS  TO BE HELD ON  APRIL 16,  1998  AND AT ANY  ADJOURNMENT  OR
POSTPONEMENT THEREOF.

     The undersigned hereby appoints the Board of Directors of Meritrust, or any
successors  thereto as proxies,  with full powers of  substitution,  to vote the
shares of the undersigned at the Special Meeting of Stockholders of Meritrust to
be held at Meritrust's main office located at 200 West Second Street, Thibodaux,
Louisiana,  on Thursday, April 16,  1998 at 3:00 p.m., Central Time, and at any
adjournment or postponement  thereof, with all the powers that the undersigned 
would possess if personally present, as follows:
    

         1. To approve and adopt the  Agreement  and Plan of Merger  dated as of
November 20, 1997, by and among Whitney Holding Corporation ("Whitney"), Whitney
National Bank  ("Whitney  Bank") and  Meritrust,  together with a related merger
agreement (collectively,  the "Plan of Merger"), pursuant to which (i) Meritrust
will be merged  into  Whitney  Bank (the  "Merger"),  with  Whitney  Bank as the
surviving  corporation;  and (ii)  each  share  of  common  stock  of  Meritrust
outstanding  immediately  prior to consummation of the Merger shall be converted
into and  represent  the right to  receive  shares of  Whitney  common  stock as
determined in accordance with the terms of the Plan of Merger, all as more fully
described in the Proxy Statement-Prospectus.

                  ___FOR             ___AGAINST         ___ABSTAIN


         2. To adjourn the Special Meeting, if necessary,  to solicit additional
proxies.

                  ___FOR             ___AGAINST        ___ABSTAIN


         In their discretion, the proxies are authorized to vote with respect to
approval of the minutes of the last meeting of stockholders, matters incident to
the conduct of the meeting,  and upon such other  matters as may  properly  come
before the meeting.

         The Board of Directors recommends that you vote FOR each of Proposals 1
and 2. Shares of common stock of  Meritrust  will be voted as  specified.  IF NO
SPECIFICATION IS MADE, SHARES WILL BE VOTED IN FAVOR OF EACH OF PROPOSALS 1 AND
2, AND OTHERWISE AT THE DISCRETION OF THE PROXIES.  THIS PROXY MAY BE REVOKED AT
ANY TIME BEFORE IT IS EXERCISED.

   
                       (Please sign and date on reverse.)
    

<PAGE>



   
         The undersigned  hereby  acknowledges  receipt of the Notice of Special
Meeting of the  Stockholders of Meritrust  called for April 16, 1998 and a Proxy
Statement-Prospectus for the Special Meeting.
    



                                             Dated:                       , 1998
                                                   -----------------------


                                             -----------------------------------


                                             -----------------------------------
                                                        Signature(s)


                                             Please  sign  this exactly as your
                                             name(s) appear(s) on this proxy. 
                                             When signing in a representative
                                             capacity, please give title.  When
                                             shares are held jointly,  only  one
                                             holder need sign.

PLEASE MARK, SIGN, DATE AND RETURN THE PROXY CARD PROMPTLY USING THE ENCLOSED
ENVELOPE.




<PAGE>


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