WHITNEY HOLDING CORP
S-4/A, 1997-01-15
NATIONAL COMMERCIAL BANKS
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   As filed with the Securities and Exchange Commission on January 15, 1997    
                                                 Registration No. 333-17717    
- --------------------------------------------------------------------------------

                       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>
<C>                                            <C>                                                <C>
         LOUISIANA                                       6711                                      72-6017893
(State or other jurisdiction of                (Primary Standard Industrial                       (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 office)

<TABLE>
<C>                                             <C>                                          <C>
   Joseph S. Schwertz, Jr., Esq.                          Copies to:                                   Copies to:
             Secretary                           Patrick J. Butler, Jr., Esq.                     Paul M. Haygood, Esq.
    Whitney Holding Corporation                   Milling, Benson, Woodward,                 Correro Fishman Haygood Phelps
   228 St. Charles Ave. - Room 622              Hillyer, Pierson & Miller, L.L.P.            Weiss Walmsley & Casteix, L.L.P.
        New Orleans, LA  70130                    909 Poydras Street, Suite 2300             201 St. Charles Avenue, 47th Floor
             (504) 586-3474                            New Orleans, LA 70112                    New Orleans, Louisiana 70170
 (Name, address, including zip code, and
  telephone number, including area code, of
             agent for service)
</TABLE>

        Approximate Date of Commencement of Proposed Sale to the Public:
 Upon submission of the Plan of Merger described in this registration statement
         for the vote of shareholders of First National Bankshares, Inc.
                        -------------------------------


         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. |_|

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

         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>
<C>  <C>                                                              <C>
Item of Form S-4                                                      Location in Prospectus
- ----------------                                                      ----------------------

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                            Unaudited Pro Forma Condensed Combined
                                                                      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
                                                                      FNB'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                    Documents Incorporated by Reference
           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-2 or S-3 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 FNB; Documents
           Companies                                                  Incorporated by Reference

</TABLE>
<PAGE>

                           WHITNEY HOLDING CORPORATION
                              CROSS REFERENCE SHEET
<TABLE>
<C>  <C>                                                              <C>
Item of Form S-4                                                      Location in Prospectus
- ----------------                                                      ----------------------
      17.  Information with Respect to Companies                      *
           other than S-2 or S-3 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 Solicitation                         The Meeting - General; The Meeting -
                                                                      Solicitation, Voting and Revocation of
                                                                      Proxies
           (5)    Interests of Certain Persons in                     Summary - Interests of Certain Persons in the
                  Matters to be Acted upon; Voting                    Mergers; The Plan of Merger - Interests of
                  Securities and Principal Holders                    Certain Persons in the Mergers; Information
                  Thereof                                             About FNB - Security 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 FNB; Documents
                  Executive Compensation; Certain                     Incorporated by Reference
                  Relationships and Related
                  Transactions
      19.  Information if Proxies, Consents or                        *
           Authorizations are not to be Solicited or in
           an Exchange Offer

</TABLE>
*Not applicable or answer is in the negative.


<PAGE>
                  [FIRST NATIONAL BANKSHARES, INC. LETTERHEAD]



                                January 17, 1997    



Dear Shareholder:

   
      You are cordially  invited to attend a Special  Meeting of Shareholders
of First National  Bankshares,  Inc.  ("FNB"),  to be held in the main office of
First National Bank of Houma ("FNBH"),  7910 Main Street, Houma,  Louisiana,  on
Tuesday, February 18, 1997 at 2:00 p.m., local time.
    
         The purpose of the Special Meeting will be to consider and vote upon an
Agreement  and Plan of Merger  dated  October 11, 1996,  as amended,  among FNB,
Whitney  Holding  Corporation  ("Whitney"),  FNBH,  and  Whitney's  wholly-owned
subsidiary  Whitney  National  Bank ("WNB") and the related  Joint  Agreement of
Merger between FNB and Whitney (collectively,  the "Plan of Merger") pursuant to
which (i) FNB would merge into Whitney and each outstanding  share of FNB Common
Stock would be converted into shares of Whitney Common Stock on the terms stated
in the Plan of Merger,  and (ii) FNBH would, in due course,  merge into WNB. You
are urged to read the enclosed Proxy  Statement-Prospectus in its entirety for a
more complete description of the terms of the Plan of Merger.

   
     The Board of  Directors  of FNB has  unanimously  approved  the Plan of
Merger   as  being   in  the  best   interests   of  FNB's   shareholders.   The
Robinson-Humphrey  Company,  Inc., an investment banking firm experienced in the
valuation of banking institutions,  has advised your Board of Directors that, in
its opinion, the consideration to be received by FNB's shareholders  pursuant to
the Plan of Merger is fair to FNB's shareholders from a financial point of view.
Upon  consummation  of the Plan of Merger,  you would  receive  common  stock of
Whitney,  one of the largest  Louisiana-based  bank holding  companies.  It is a
condition to the consummation of the Plan of Merger that FNB and Whitney receive
an  opinion  that the  merger of FNB into  Whitney  will  qualify  as a tax-free
reorganization  for federal  income tax purposes.  The Board believes that FNB's
merger into  Whitney  will  enhance our  ability to compete  effectively  in the
changing economic and legal environment facing all financial institutions, while
continuing  to offer a broad  range of  banking  services  to the  market  areas
currently  served  by FNB.  Whitney's  Common  Stock  is  quoted  on the  NASDAQ
(National Market System), providing you with the continued liquidity of owning a
publicly traded security.
    
        The    accompanying    Notice   of    Special    Meeting    and   Proxy
Statement-Prospectus  contain  information  about the  proposed  Plan of Merger.
Please read carefully these materials and the documents  delivered  herewith and
incorporated  by  reference  herein.  Copies of the  documents  incorporated  by
reference are available as indicated under the caption  "Documents  Incorporated
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 counted.  Of     
course, if you attend the Special Meeting,  you  nevertheless  may vote in
person,  even though you previously returned your proxy.


                                Very truly yours,



                                Jerome H. Mire
                                President and Chief Executive Officer



<PAGE>


                         FIRST NATIONAL BANKSHARES, INC.
                                7910 Main Street
                             Houma, Louisiana 70360

                    NOTICE OF SPECIAL MEETING OF SHAREHOLDERS
                     TO BE HELD TUESDAY, FEBRUARY 18, 1997    


To the Holders of Common Stock of First National Bankshares, Inc.:

   
      NOTICE IS HEREBY  GIVEN  that a Special  Meeting of  Shareholders  (the
"Meeting") of First National  Bankshares,  Inc. ("FNB") will be held at the main
office of its  wholly-owned  subsidiary,  First National Bank of Houma ("FNBH"),
7910 Main Street, Houma, Louisiana on Tuesday, February 18, 1997 at 2:00 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 October 11, 1996, as amended, between
                  Whitney Holding Corporation ("Whitney"), Whitney National
                  Bank, FNB, and FNBH and the related Joint Agreement of Merger
                  between FNB and Whitney, copies of which are attached to     
                  the accompanying Proxy Statement-Prospectus as Appendix A and
                  incorporated herein by reference (collectively, the "Plan of
                  Merger") pursuant to which, among other things: (a) FNB would
                  merge into Whitney, as a result of which FNBH would become a
                  wholly-owned subsidiary of Whitney and each outstanding share
                  of common stock of FNB would be converted into shares of
                  Whitney common stock as determined in accordance with the
                  terms of the Plan of Merger and (b) FNBH would, in due course,
                  merge into Whitney National Bank, a wholly-owned bank
                  subsidiary of Whitney, all as more fully described in the
                  attached Proxy Statement-Prospectus.

         2.       To transact such other business as may properly come before
                  the Meeting or any adjournment or postponement thereof.

   
     Only  shareholders  of record at the close of  business  on  January 8,
1997, are entitled to notice of and to vote at the Meeting or any adjournment or
postponement 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




                                    Sharon T. Roppolo
                                    Secretary
Houma, Louisiana
   January 17, 1997    



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


                                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 FNB OR BY EXECUTION
OF A PROXY OF A LATER  DATE  FILED  WITH THE  SECRETARY  OF FNB AT OR BEFORE THE
MEETING.
- --------------------------------------------------------------------------------




<PAGE>

                         FIRST NATIONAL BANKSHARES, INC.
               PROXY STATEMENT FOR SPECIAL MEETING OF SHAREHOLDERS
                     TO BE HELD TUESDAY, FEBRUARY 18, 1997    


                           WHITNEY HOLDING CORPORATION
                                   PROSPECTUS
                           Common Stock, No Par Value

   
      This Proxy Statement-Prospectus is being furnished to holders of common
stock,  par value  $2.50 per  share  ("FNB  Common  Stock"),  of First  National
Bankshares, Inc. ("FNB") in connection with the solicitation of proxies by FNB's
Board of  Directors  for use at a Special  Meeting of  Shareholders  of FNB (the
"Meeting") to be held on Tuesday, February 18, 1997 at 2:00 p.m., local time, at
the main office of First  National  Bank of Houma  ("FNBH"),  7910 Main  Street,
Houma, Louisiana, and at any adjournment or postponement thereof. The purpose of
the Meeting is to consider and vote upon a proposal to approve an Agreement  and
Plan of Merger  dated  October 11, 1996,  as amended,  between  Whitney  Holding
Corporation  ("Whitney"),  Whitney National Bank ("Whitney Bank"), FNB, and FNBH
and the related Joint Agreement of Merger between FNB and Whitney (collectively,
the "Plan of Merger").  The Plan of Merger provides for, among other things, the
merger of FNB into  Whitney (the  "Company  Merger") and the merger of FNBH into
Whitney Bank. Upon consummation of the Company Merger, each outstanding share of
FNB Common Stock would be converted  into 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.   See   "The   Plan  of
Merger-Description   of  the  Plan  of   Merger--Conversion  of  Common  Stock."
Consummation  of the Company  Merger  requires the approval of the holders of at
least  two-thirds  of the shares of FNB Common  Stock  present at the Meeting in
person or by proxy and 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 1,438,596 shares
of Whitney  Common  Stock that may be issued  upon  consummation  of the Company
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." This     
Proxy Statement-Prospectus  constitutes a prospectus of Whitney relating to the
shares of Whitney  Common  Stock that are  issuable to the holders of FNB Common
Stock upon consummation of the Company Merger.

         This Proxy Statement-Prospectus, and the accompanying Notice of Special
Meeting and form of proxy,  are being first mailed to  shareholders of FNB on or
   about January 17, 1997.    

   
          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 outstanding  shares of FNB Common Stock are
listed and traded on the American Stock Exchange, Inc. (the "AMEX"). The closing
price per share of Whitney Common Stock on the NASDAQ  National Market System on
January 8, 1997 was $35.00 and the closing  price per share of FNB Common  Stock
on the AMEX on January 8, 1997 was $19.625.
    
                  -------------------------------------------
THE SECURITIES TO BE ISSUED IN CONNECTION WITH THE PROPOSED COMPANY 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.

                   -----------------------------------------
            This Proxy Statement-Prospectus is dated January 16, 1997.    

<PAGE>

         No person has been  authorized to give any  information  or to make any
representations  other than those contained or incorporated by reference in this
Proxy  Statement-Prospectus,   and,  if  given  or  made,  such  information  or
representations  must not be relied upon as having been authorized by Whitney or
FNB. 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 FNB since the date
hereof.

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

                              AVAILABLE INFORMATION

         Each of Whitney and FNB is subject to the informational requirements of
the  Securities  Exchange  Act of 1934 (the  "Exchange  Act") and in  accordance
therewith is required to file reports and other  information with the Securities
and Exchange  Commission (the "Commission").  Such reports,  together with proxy
statements and other  information filed by Whitney and FNB, 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,  and they are also available to the public at the web site  maintained by
the  Commission  at  "http://www.sec.gov."  In  addition,  such  reports,  proxy
statements and other information  concerning FNB can be inspected at the offices
of the AMEX,  the stock  exchange  on which FNB Common  Stock  (Symbol:  FNH) is
traded,  86 Trinity  Place,  New York,  New York 10006.  Whitney Common Stock is
included for quotation on the NASDAQ National Market System (Symbol:  WTNY), and
such reports,  proxy statements and other information  concerning Whitney 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
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, 1995 (the "1995 10-K);

         2.       Whitney's Form 10-K/A (Amendment No. 1 to the 1995 10-K) filed
                  with the Commission on July 3, 1996;

         3.       Whitney's Quarterly Report on Form 10-Q for the fiscal quarter
                  ended March 31, 1996;

         4.       Whitney's Quarterly Report on Form 10-Q for the fiscal quarter
                  ended June 30, 1996;

         5.       Whitney's Quarterly Report on Form 10-Q for the fiscal quarter
                  ended September 30, 1996;



<PAGE>

         6.       Whitney's Current Report on Form 8-K filed with the Commission
                  on January 19, 1996 (the "Form 8-K");

         7.       Whitney's Current Report on Form 8-K filed with the Commission
                  on January 26, 1996;

         8.       Whitney's Current Report on Form 8-K filed with the Commission
                  on March 25, 1996 (the "March 8-K");

         9.       Whitney's Form 8-K/A (Amendment No. 1 to the March 8-K) filed
                  with the Commission on May 21, 1996; and

         10.      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 the Form 8-K (File No. 0-1026).

         The following  documents  previously  filed with the  Commission by FNB
pursuant to the  Exchange  Act are  incorporated  by  reference  into this Proxy
Statement-Prospectus:

         1.       FNB's Annual Report on Form 10-K for the fiscal year ended
                  December 31, 1995;

         2.       FNB's Quarterly Report on Form 10-Q for the quarter ended
                  March 31, 1996;

         3.       FNB's Quarterly Report on Form 10-Q for the quarter ended
                  June 30, 1996;

         4.       FNB's Quarterly Report on Form 10-Q for the quarter ended
                  September 30, 1996;

         5.       FNB's Amended Annual Report on Form 10-K/A for the fiscal year
                  ended December 31, 1994; and

         6.       FNB's Amended Quarterly Reports on Forms 10-Q/A for the
                  quarters ended March 31, June 30, and September 30, 1995.

         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 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 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 FNB, FROM
SHARON T. ROPPOLO, SECRETARY, FIRST NATIONAL BANKSHARES, INC., P.O. BOX 6096,
HOUMA, LOUISIANA 70361 (TELEPHONE (504) 853-7410).  IN ORDER TO ENSURE TIMELY
   DELIVERY OF THE DOCUMENTS, ANY REQUEST SHOULD BE MADE BY FEBRUARY 10,    
   1997. 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 FNB
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.



<PAGE>



                                TABLE OF CONTENTS


SUMMARY......................................................................iii
         Parties to the Company Merger.......................................iii
                  Whitney  ..................................................iii
                  FNB      ..................................................iii
         The Special Meeting.................................................iii
                  General  ..................................................iii
                  Purpose of the Meeting......................................iv
         Vote Required........................................................iv
         Reasons for the Plan of Merger.......................................iv
         Recommendation of FNB's Board of Directors...........................iv
         Fairness Opinion of Robinson-Humphrey................................iv
         The Plan of Merger...................................................iv
                  General  ...................................................iv
                  Exchange of Certificates.....................................v
                  Regulatory Approvals and Other Conditions to Consummation
                  of the Company Merger.......................................vi
                  Waiver, Amendment and Termination...........................vi
         Accounting Treatment.............................................vi    
         Certain Federal Income Tax Consequences.............................vii
         Absence of Dissenters' Rights.......................................vii
         Interests of Certain Persons........................................vii
         Market Prices.......................................................vii
         Comparative Rights of Shareholders..................................vii
         Selected Financial Data of FNB.....................................viii
         Selected Financial Data of Whitney...................................ix
         Comparative Per Share Data............................................x
THE MEETING....................................................................1
         General  .............................................................1
         Purpose of the Meeting................................................1
         Shares Entitled to Vote; Quorum; Vote Required........................1
         Solicitation, Voting and Revocation of Proxies........................1
         Employee Stock Ownership Plan.........................................2
THE PLAN OF MERGER.............................................................2
         General  .............................................................2
         Background............................................................2
         Reasons for the Plan of Merger........................................4
                  General  ....................................................4
                  Whitney  ....................................................4
                  FNB      ....................................................4
         Recommendation of FNB's Board of Directors............................5
         Fairness Opinion of The Robinson-Humphrey Company, Inc................5
                  General  ....................................................5
                  Valuation Methodologies......................................6
                  Compensation of Robinson-Humphrey............................7
         Description of the Plan of Merger.....................................7
                  General  ....................................................7
                  Conversion of Common Stock...................................7
                  Exchange of Certificates.....................................9
                  Transfer and Exchange Agents.................................9
                  Regulatory Approvals and Other Conditions of the
                  Company Merger...............................................9
                  Effective Date..............................................10
                  Conduct of Business Prior to the Effective Date.............10


                                        i

<PAGE>



                  Waiver, Amendment and Termination...........................11
         Interests of Certain Persons.........................................12
                  Employee Benefits...........................................12
                  ESOP.    ...................................................12
                  Change in Control and Other Agreements......................12
                  Indemnification and Insurance...............................13
         Status Under Federal Securities Laws; Certain Restrictions
                  on Resales .................................................13
         Accounting Treatment.................................................14
ABSENCE OF DISSENTER'S RIGHTS.................................................14
CERTAIN FEDERAL INCOME TAX CONSEQUENCES.......................................14
UNAUDITED PRO FORMA
   CONDENSED COMBINED FINANCIAL INFORMATION...................................15
INFORMATION ABOUT FNB.........................................................23
         Description of Business..............................................23
         Price Range of FNB Common Stock and Quarterly Dividends .............23
INFORMATION ABOUT WHITNEY.....................................................24
         General  ............................................................24
         Recent Developments..................................................24
         Market Prices of and Dividends Declared on Whitney Common Stock .....25
COMPARATIVE RIGHTS OF SHAREHOLDERS............................................25
         Description of Whitney Common Stock..................................26
         Comparison of Whitney Common Stock and FNB Common Stock..............30
                  Boards of Directors.........................................30
                  Removal of Directors........................................30
                  Preferred Stock.............................................30
                  Special Meetings of Shareholders............................31
                  Supermajority Vote Requirements.............................31
                  Reversion...................................................31
                  Indemnification Rights......................................31
LEGAL MATTERS.................................................................32
EXPERTS.......................................................................32
SHAREHOLDER PROPOSALS.........................................................32
OTHER MATTERS.................................................................32
         Appendix A-Agreement and Plan of Merger (including Amendment)...A-1    
         Appendix B-Fairness Opinion of The Robinson-Humphrey Company, ..B-1    


                                       ii

<PAGE>


                                     SUMMARY

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

Parties to the Company Merger

         Whitney.   Whitney  Holding   Corporation,   a  Louisiana   corporation
("Whitney"),  is a multi-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, which has its headquarters in Orleans Parish,  Louisiana, has been
engaged in general  banking  business in the City of New Orleans  since 1883. It
currently  operates 61 branches in south Louisiana and a foreign branch on Grand
Cayman in the British West Indies.  In December 1994,  Whitney  established  the
Whitney Bank of Alabama and, through this new banking  subsidiary,  acquired the
Mobile area operations of The Peoples Bank, Elba,  Alabama on February 17, 1995.
Whitney  Bank of Alabama  operates 10 branches  and one loan  production  office
serving  metropolitan Mobile and Montgomery,  Alabama and the Alabama Gulf Coast
region. On October 25, 1996, Whitney acquired Liberty Bank and American Bank and
Trust, both of Pensacola,  Florida,  through mergers of those  institutions into
Whitney  National  Bank of  Florida  ("Whitney  Bank-Florida"),  a  wholly-owned
subsidiary of Whitney  formed for that purpose.  Whitney  Bank-Florida  operates
five branches serving Pensacola, Florida and surrounding areas.

         Whitney and its subsidiaries are sometimes referred to collectively
herein as "Whitney's consolidated group." At September 30, 1996, Whitney had
total consolidated assets of approximately $3.5 billion and total consolidated
deposits of approximately $2.7 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."

         On November 14,  1996,  Whitney  entered into an Agreement  and Plan of
Merger with Merchants  Bancshares,  Inc.  ("Merchants")  and its  majority-owned
subsidiary,  Merchants Bank & Trust Co.  ("Merchants  Bank"),  pursuant to which
Merchants  would  merge  into  Whitney  and  Whitney  would  acquire  all of the
outstanding  shares of Merchants  Bank through either a merger with a subsidiary
of  Whitney  or a share  exchange  with  Whitney.  Upon  consummation  of  these
transactions,  which are  subject to  regulatory  approval  and other  customary
conditions,  the shareholders of Merchants and Merchants Bank would receive,  in
the aggregate,  shares of Whitney  common stock having a value of  approximately
$51.8 million,  plus the amount of Merchants' retained net income after tax from
October 1, 1996 through the month  preceding the date of closing.  Merchants has
total  consolidated  assets of  approximately  $207 million.  Whitney intends to
account for this acquisition as a pooling of interests.  See "Information  About
Whitney - Recent Developments."

          FNB. First National Bankshares, Inc., a Louisiana corporation ("FNB"),
is a bank  holding  company  that  owns  all of the  outstanding  stock of First
National  Bank  of  Houma  ("FNBH").  At  September  30,  1996,  FNB  had  total
consolidated  assets of  approximately  $218.6  million  and total  consolidated
deposits of approximately $192.4 million. FNB and FNBH are sometimes referred to
herein  collectively  as "FNB's  consolidated  group." FNBH, a national  banking
association and a wholly-owned  subsidiary of FNB, is a full service  commercial
bank offering  consumer and  commercial  banking  services at five  locations in
Terrebonne  Parish,  Louisiana  and a loan  production  office  in New  Orleans,
Louisiana. FNB's and FNBH's principal executive offices are at 7910 Main Street,
Houma,  Louisiana  70360,  and their  telephone  number is (504)  868-1660.  See
"Information about FNB."

The Special Meeting

   
      General.  A special meeting of the  shareholders of FNB (the "Meeting")
will be held on  Tuesday,  February  18, 1997 at the time and place set forth in
the accompanying Notice of Special Meeting of Shareholders.  Only record holders
of the common stock,  $2.50 par value per share,  of FNB ("FNB Common Stock") at
the close of business  on January 8, 1997 are  entitled to notice of and to vote
at the Meeting.  On that date,  there were 2,017,600  shares of FNB Common Stock
issued and  outstanding,  each of which is  entitled  to one vote on each matter
properly to come before the Meeting.
    

                                       iii

<PAGE>

   
      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  October
11,  1996,  as amended,  between  Whitney,  Whitney  Bank,  FNB and FNBH and the
related Joint  Agreement of Merger  between FNB and Whitney  (collectively,  the
"Plan of Merger"),  copies of which are attached  hereto as Appendix A, pursuant
to which,  among  other  things,  FNB will  merge  into  Whitney  (the  "Company
Merger"),  and,  in due  course,  FNBH will merge into  Whitney  Bank (the "Bank
Merger" which,  together with the Company Merger,  are  collectively  called the
"Mergers"),  with the result that the business and properties of FNB will become
the  business and  properties  of Whitney and  shareholders  of FNB will receive
shares of  Whitney  Common  Stock  (and cash in lieu of  fractional  shares)  as
described below under " - The Plan of Merger." See "The Meeting - Purpose of the
Meeting."
    

Vote Required

         The Plan of Merger must be approved by the affirmative  vote of holders
of at least  two-thirds of the shares of FNB Common Stock present at the Meeting
in person or represented by proxy.  Directors and executive  officers of FNB and
their affiliates hold an aggregate of 735,311 shares, or approximately 36.4%, of
the outstanding  shares of FNB Common Stock. Of these 735,311 shares,  directors
and  executive  officers of FNB own either  directly or through the FNB Employee
Stock Ownership Plan or in other  retirement  plans an aggregate of 121,061,  or
approximately 6.0%, of the outstanding shares of FNB Common Stock. The directors
and executive officers have agreed, subject to certain conditions, to vote these
shares in favor of the Company Merger.  FNB  anticipates  that the affiliates of
its  directors  and  executive  officers  will also vote in favor of 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 FNB believes that the approval of the Plan of
Merger is in the best  interests  of FNB and its  shareholders.  In reaching its
decision,  the  Board  considered  a number  of  factors,  including  FNB's  and
Whitney's business and prospects; the price to be received by FNB's shareholders
and the premium that such price  represented over the historical  trading prices
for FNB Common Stock;  and the opinion of The  Robinson-Humphrey  Company,  Inc.
("Robinson-Humphrey")   that  the   consideration   to  be   received  by  FNB's
shareholders  upon  the  consummation  of the  Plan of  Merger  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 FNB's Board of Directors

         THE BOARD OF DIRECTORS OF FNB 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 FNB'S BOARD OF DIRECTORS."

Fairness Opinion of Robinson-Humphrey

          Robinson-Humphrey has rendered its opinion to FNB'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  FNB's  shareholders  under  the  Plan  of  Merger  is  fair  to FNB  and its
shareholders  from a  financial  point of view.  Robinson-Humphrey'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 The Robinson-Humphrey Company, Inc."

    
     A copy of the fairness opinion of  Robinson-Humphrey  dated January 16,
1997 is attached as Appendix B and should be read in its entirety.
    

The Plan of Merger

         General.  Pursuant to the Plan of Merger, if all conditions are
satisfied or waived, on the effective date of the Company Merger (the "Effective
Date"), FNB will be merged into Whitney, and the separate existence of FNB will


                                       iv

<PAGE>
cease,  and FNBH will  thereby  become a  wholly-owned  subsidiary  of  Whitney.
Thereafter,  in due  course,  FNBH will be merged  into  Whitney  Bank,  and the
separate  existence  of FNBH will cease.  By reason of the Company  Merger,  the
outstanding shares of FNB Common Stock will be converted into a number of shares
of common  stock,  no par value,  of Whitney  ("Whitney  Common  Stock") with an
"Average  Market  Price" (as defined in the Plan of Merger) of  $41,000,000,  or
approximately  $20.32 per share of FNB Common Stock. The actual number of shares
of Whitney Common Stock that will be received by an FNB shareholder by reason of
the Company  Merger will vary  depending  upon the Average  Market  Price of the
Whitney Common Stock.

   
        The "Average Market Price" is defined 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  that 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;  provided,  however,  that if the Average Market Price as so calculated is
less than $28.50 or greater than $36.50,  the "Average  Market Price" to be used
in calculating  the number of shares of Whitney Common Stock to be issued in the
Company Merger shall be $28.50 or $36.50,  as the case may be.  Accordingly,  if
the  calculation  of the Average Market Price of Whitney Common Stock results in
an amount equal to or greater than $36.50,  then approximately  1,123,288 shares
of Whitney  Common Stock will be issued in the Company  Merger,  notwithstanding
that the actual  market value of those  shares may be greater than  $41,000,000.
Conversely,  if the Average  Market Price of Whitney  Common Stock results in an
amount equal to or less than $28.50,  approximately  1,438,596 shares of Whitney
Common  Stock will be issued in the  Company  Merger,  notwithstanding  that the
aggregate  value of those  shares  may be less than  $41,000,000.  On January 8,
1997, the closing  trading price for a share of Whitney Common Stock was $35.00,
and if such date had been the  Effective  Date,  the Average  Market Price would
have been approximately $34.86.
    

         Inasmuch  as the  consideration  to be paid by Whitney  in the  Company
Merger will be based on the "Average  Market  Price" of Whitney  Common Stock as
defined in the Plan of Merger,  the actual  value on the  Effective  Date of the
shares to be received by holders of FNB Common  Stock in the Company  Merger may
be more or less than the Average  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
FNB  shareholder  who would  otherwise  be entitled  thereto will receive a cash
payment  (without  interest)  equal to such fractional  share  multiplied by the
Average Market Price.

   
      See "The Plan of Merger - Description of the Plan of Merger -- General"
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
FNB's  shareholders,  see "The Plan of Merger - Status Under Federal  Securities
Laws; Certain Restrictions on Resales."
    

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

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

                                Sharon T. Roppolo
                          First National Bank of Houma
                                  P.O. Box 6096
                             Houma, Louisiana 70361
                                 (504) 853-7410

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 FNB
and Whitney
                                        v
<PAGE>
against  any claim that may be made  against  FNB or Whitney by the owner of the
certificate(s)  alleged to have been lost or destroyed.  FNB 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  FNB 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
Company Merger. In addition to approval by the shareholders of FNB, consummation
of the Company 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,
business or prospects of the other party's  consolidated group, (ii) the receipt
by Whitney of  required  regulatory  approvals,  (iii) the receipt by Whitney of
assurances that the Mergers may be accounted for as a pooling of interests, (iv)
the  receipt by  Whitney  and FNB of  opinions  as to the  qualification  of the
Mergers as a tax-free  reorganization under applicable law, (v) FNB's receipt of
a letter from  Robinson-Humphrey,  dated as of the date of the Meeting,  in form
and substance  satisfactory to FNB, confirming its fairness opinion to the Board
of Directors of FNB and (vi) certain other  conditions  customary for agreements
of this sort.  The parties  intend to consummate  the Company  Merger as soon as
practicable  after all of the  conditions to the Company Merger have been met or
waived.

          On November 22, 1996,  Whitney filed an application  with the Board of
Governors of the Federal Reserve System (the "Reserve  Board") seeking  approval
of the Company  Merger.  There can be no assurance  that this  approval  will be
obtained  prior  to the  Meeting,  or  that  this  or the  other  conditions  to
consummation of the Company Merger will be satisfied by such date or at all. See
"The Plan of Merger - Description of the Plan of Merger -- Regulatory  Approvals
and Other Conditions of the Company Merger."

         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  Company  Merger  other  than  approval  by  the
shareholders of FNB, 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 Company Merger, and FNB's
receipt of a letter from  Robinson-Humphrey  dated the date of the  Meeting,  in
form and substance satisfactory to FNB, confirming  Robinson-Humphrey's fairness
opinion to the Board of Directors of FNB.

         The Plan of  Merger  may be  amended,  at any time  before or after its
approval by the  shareholders  of FNB, by the mutual  agreement of the Boards of
Directors  of the  parties  to the Plan of  Merger;  provided  that,  under  the
Louisiana  Business  Corporation  Law ("LBCL") any amendment made  subsequent to
shareholder  approval of the Company  Merger may not alter the amount or type of
shares into which the FNB Common Stock will be converted,  alter any term of the
Articles of Incorporation of Whitney as the surviving corporation in the Company
Merger,  or alter any term or  condition  of the Plan of Merger in a manner that
would adversely affect any shareholder of FNB.

         The Plan of Merger may be terminated at any time prior to the Effective
Date (i) by the mutual consent of Whitney and FNB; (ii) in the event of a breach
of any representation, warranty or covenant in the Plan of Merger that cannot be
cured by the earlier of 45 days after written  notice of such breach or June 30,
1997; (iii) if the Company Merger has not occurred by June 30, 1997; (iv) if FNB
receives a written offer with respect to another acquisition transaction and the
Board of Directors of FNB determines in good faith,  after consultation with its
financial advisers and counsel, that such transaction is more favorable to FNB's
shareholders than the transactions contemplated by the Plan of Merger; or (v) on
the basis of certain other grounds specified in the Plan of Merger.  The Plan of
Merger  provides for a termination  fee of $2,000,000  payable to Whitney if FNB
terminates the Plan of Merger under the  circumstances  described in clause (iv)
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 Mergers as a  pooling-of-interests,
and it is a condition to Whitney's  obligation to consummate  the Company Merger
that (i) it receive certain assurances from FNB's independent public accountants
that the Mergers may be accounted for as a pooling-of-interests and (ii) neither
Whitney's independent

                                       vi
<PAGE>
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  Company  Merger is  conditioned  upon  receipt by
Whitney and FNB of an opinion from Arthur Andersen LLP to the effect that, among
other  things,  each of the Mergers  will  qualify as a tax-free  reorganization
under  applicable law and that each FNB shareholder who receives  Whitney Common
Stock pursuant to the Company 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 Company Merger.  See "Certain Federal Income Tax
Consequences."

Absence of Dissenters' Rights

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

Interests of Certain Persons

         The  executive  officers  and members of the Board of  Directors of FNB
have  interests  in the  Mergers  that  are in  addition  to their  interest  as
shareholders of FNB. These interests include,  among others,  payments and other
benefits to be received by one of FNB's former executive officers pursuant to an
agreement  with FNB and FNBH;  benefits that may arise under certain  "change in
control"  agreements  among  FNB,  FNBH  and  certain  of  their  officers;  the
continuation of certain employee benefits generally;  and provisions in the Plan
of Merger relating to  indemnification of directors and officers of FNB and FNBH
and continuation of directors and officers liability insurance. See "The Plan of
Merger - Interests of Certain Persons."

Market Prices

   
      On October  10,  1996,  the last  trading day  preceding  the date that
Whitney  and FNB  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 System,  was $33.00.  No assurance can be given as
to the market price of Whitney Common Stock on the Effective Date. On January 8,
1997,  the closing  sales price for a share of Whitney  Common Stock was $35.00,
and if such date had been the  Effective  Date,  the Average  Market Price would
have been  approximately  $34.86. See "Information About Whitney - Market Prices
of and Dividends Declared or Whitney Common Stock."
    

         The closing sales price for a share of FNB Common Stock on the AMEX was
   $19.625 on October 10, 1996.  On January 8, 1997, the closing sales price    
   for a share of FNB Common Stock was $19.625. No assurance can be given as    
to the market price of the FNB Common Stock on the  Effective  Date.  See  
"Information About FNB - Price Range of FNB Common Stock and Quarterly 
Dividends."

Comparative Rights of Shareholders

         If the Company  Merger is  consummated,  all  shareholders  of FNB 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
FNB. Whitney's  Articles of Incorporation  contain provisions that are different
from  those of FNB,  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."

                                       vii

<PAGE>


Selected Financial Data of FNB

         The  following  selected  financial  data with  respect  to each of the
fiscal years in the five-year  period ended  December 31, 1995 have been derived
from FNB's audited  consolidated  financial  statements.  The selected financial
data for the nine months  ended  September  30, 1996 and 1995 have been  derived
from  FNB's  unaudited  financial  statements,  which,  in the  opinion of FNB'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,  1996  are  not
necessarily  indicative  of the results to be expected for the entire year.  The
information   set  forth  below  should  be  read  in  conjunction   with  FNB's
consolidated  financial  statements and notes thereto  incorporated by reference
herein.
<TABLE>
<C>                                        <C>         <C>       <C>           <C>         <C>         <C>         <C>
                                             Nine months ended
                                               September 30                       Years ended December 31,
                                            ------------------   -----------------------------------------------------------
                                            1996        1995         1995       1994         1993        1992        1991
                                            -------    -------   -----------  ----------  ----------   --------  -----------
                                                           (In thousands, except per share data, unaudited)

Average Balance Sheet Data:
   Total assets........................    $216,623    $203,262    $204,746    $192,504    $188,473    $191,302    $197,612
   Earning assets......................     197,979     184,679     186,699     175,259     172,054     172,784     178,002
   Loans and leases, net of
     unearned income and allowance.....     111,073     100,228     102,067      83,544      83,490      77,479      69,116
   Investment securities...............      77,699      73,509      73,768      82,782      80,150      86,337      90,672
   Interest bearing deposits...........     165,309     156,709     158,441     149,655     149,577     150,999     146,797
   Noninterest bearing deposits........      28,425      28,194      28,245      27,193      25,972      25,452      23,910
   Shareholders' equity................      17,409      14,954      15,217      11,339       9,078       7,037       6,125

Income Statement Data:
   Total interest income...............     $11,323     $11,509     $15,327     $13,257     $12,322     $13,032     $15,164
   Net interest income.................       6,454       7,063       9,217       8,484       7,537       6,867       5,874
   (Provision) credit for loan losses..        (100)          0           0         500         (51)       (125)         (4)
   Non-interest income.................       1,556       1,377       1,793         676       1,563       1,711       1,534
   Non-interest expense................      (5,240)     (5,905)     (7,404)     (7,759)     (7,512)     (7,333)     (7,324)
   Net income..........................       1,768       1,683       2,393       5,880       2,118       1,120          80

Per Share Data:
   Earnings per share..................       $0.88       $0.83       $1.19       $2.91       $1.05       $0.56       $0.04
   Cash dividends per share............        0.21        0.10        0.16        0.10           -           -           -
   Book value per share, end of period.        8.92        7.85        8.43        6.90        4.97        3.82        3.16

Key Ratios:
   Net income as a percent of
     average assets....................        1.09%       1.11%       1.17%       3.05%       1.12%       0.59%       0.04%
   Net income as a percent of
     average equity....................       13.54%      15.00%      15.70%      50.94%      22.31%      14.61%       1.15%
   Net interest margin.................        4.35%       5.11%       4.94%       4.84%       4.38%       3.97%       3.30%
   Allowance for loan losses as
     a percent of loans and leases
     at period end.....................        1.61%       2.47%       1.95%       3.05%       3.43%       2.92%       3.20%
   Average equity as a percent
     of average total assets...........        8.04%       7.36%       7.43%       5.89%       4.82%       3.68%       3.10%
   Dividend payout ratio...............       23.96%      11.99%      13.49%       3.44%          -           -           -

</TABLE>



                                      viii

<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, 1995 and for the nine
months ended September 30, 1996 and 1995 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,  1996 and 1995  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,  1996  are  not
necessarily  indicative  of the  results to be  expected  for the  entire  year.
Selected  financial  data for the years 1991 through 1995 have been  restated to
reflect the merger,  effective March 8, 1996, of First Citizens Bankstock,  Inc.
into  Whitney  (the  "Citizens  Acquisition"),  which  was  accounted  for  as a
pooling-of-interests.
<TABLE>
<C>                                  <C>          <C>           <C>          <C>           <C>          <C>        
                                        Nine months ended
                                          September 30,                            Years ended December 31,
                                    ------------------------  -----------------------------------------------------------------
                                        1996         1995         1995         1994          1993         1992         1991
                                    -----------  -----------  -----------   -----------  -----------  ------------  -----------
                                                          (In thousands, except per share data, unaudited)
Average Balance Sheet Data:
  Total assets....................   $3,443,521   $3,161,339    $3,188,930   $3,182,674   $3,117,512    $3,061,976   $3,031,841
  Total earning assets............    3,123,305    2,855,426     2,880,631    2,877,898    2,817,526     2,761,104    2,717,010
  Total loans.....................    1,661,418    1,271,942     1,321,533    1,096,672    1,056,679     1,225,546    1,450,497
  Total investment in securities..    1,437,898    1,525,965     1,505,492    1,704,687    1,637,619     1,362,006    1,096,086
  Interest bearing deposits.......    1,886,518    1,807,628     1,813,093    1,860,866    1,855,153     1,871,189    1,858,429
  Noninterest bearing deposits....      821,231      805,557       811,616      792,448      765,457       723,932      681,233
  Shareholders' equity............      374,715      335,803       339,145      298,142      239,663       193,280      184,530

Income Statement Data:
  Total interest income...........     $172,907     $156,228      $213,295     $192,750     $186,105      $195,079     $223,303
  Net interest income.............      109,294      103,625       141,428      135,247      131,424       122,321      107,314
  Provision for (reduction in)
    reserve for possible loan losses          -       (9,750)       (9,400)     (26,004)     (59,625)        4,415       46,692
  Non-interest income.............       27,232       25,083        33,205       34,175       33,216        29,557       28,341
  Non-interest expense............      (95,030)     (88,620)     (119,481)    (112,394)    (108,237)     (120,615)    (112,303)
  Net income (loss)...............       28,512       34,073        44,349       56,198       79,228        22,415       (3,181)

Per Share Data:
  Primary earnings (loss) per
     share........................      $  1.66       $ 2.02       $  2.61      $  3.39      $  4.81       $  1.37       $(0.19)
  Fully diluted earnings (loss)
    per share.....................         1.66         2.00          2.60         3.39         4.81          1.37        (0.19)
  Cash dividends per share........         0.72         0.56          0.77         0.60         0.41          0.09         0.02
  Book value per share, end of
    period........................        22.40        21.08         21.69        19.29        17.07         12.46        11.17

Key Ratios:
  Net income (loss) as a percent
     of average assets............         1.10%        1.44%         1.39%        1.77%        2.54%        0.73%       (0.10%)
  Net income (loss) as a percent
    of average equity.............        10.14%       13.53%        13.08%       18.85%       33.06%       11.60%       (1.72%)
  Net interest margin.............         4.81%        4.99%         5.05%        4.85%        4.79%        4.54%         4.06%
  Allowance for loan losses as
    a percent of loans and leases
    at period end.................         2.41%        2.58%         2.48%        3.06%        4.28%        8.74%         7.94%
  Average equity as a percent
    of average total assets.......        10.88%       10.62%        10.63%        9.37%        7.69%        6.31%         6.09%
  Dividend payout ratio...........        43.37%       28.00%        29.50%       17.70%        8.52%        6.57%            -
</TABLE>

                                       ix

<PAGE>


Comparative Per Share Data

         The following table presents certain information for Whitney and FNB 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 Whitney and FNB 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 Company
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 Company Merger using the  pooling-of-interests  method applied in accordance
with generally accepted  accounting  principles.  Historical Whitney amounts for
1995 and prior periods have been  restated to reflect the Citizens  Acquisition.
See "- Selected Financial Data of Whitney."
<TABLE>
<C>                                                     <C>
                                                             Historical
                                                      ------------------------       Pro Forma            FNB
                                                       Whitney          FNB         Combined(1)       Equivalent(2)
                                                      ---------       --------       -----------      --------------
Earnings per common share:

Years ended:
    December 31, 1995.........................          $2.61          $1.19           $2.56             $1.60
    December 31, 1994.........................          $3.39          $2.91           $3.48             $2.18
    December 31, 1993.........................          $4.81          $1.05           $4.59             $2.87
Nine months ended September 30, 1996..........          $1.66          $0.88           $1.65             $1.03

Dividends declared per common share:

Years ended:
    December 31, 1995.........................          $0.77          $0.16           $0.74             $0.46
    December 31, 1994.........................          $0.60          $0.10           $0.57             $0.36
    December 31, 1993.........................          $0.41              -           $0.38             $0.24
Nine months ended September 30, 1996..........          $0.72          $0.21           $0.69             $0.43

Book value per common share:

As of September 30, 1996......................         $22.40          $8.92          $21.84            $13.66
As of December 31, 1995.......................         $21.69          $8.43          $21.07            $13.17

Market value per common share:

As of October 10, 1996(3).....................         $33.00        $19.625
   As of January 8, 1997.........................      $35.00        $19.625    

</TABLE>
(1)      Assuming an Average Market Price of Whitney Common Stock of $32.50 and
         the issuance of 1,261,538 shares of Whitney Common Stock to effect the 
         Company Merger.
(2)      The FNB Equivalent  amounts are calculated by multiplying the amount in
         the pro forma  combined  column by an  exchange  ratio of 0.6253 at the
         assumed Average Market Price of $32.50.
(3)      The trading day immediately preceding public announcement of the 
         execution of the Plan of Merger. See " - Market Prices."

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

         Whitney recently  completed  mergers with Liberty Holding Company,  its
majority-owned  subsidiary,  Liberty Bank,  and American Bank and Trust,  all of
Pensacola,  Florida.  Whitney has also entered  into a  definitive  agreement to
acquire Merchants  Bancshares,  Inc. and its subsidiary,  Merchants Bank & Trust
Co.  It  is  intended  that  these   transactions   will  be  accounted  for  as
poolings-of-interests,  but they are not  considered  material  to  Whitney  for
purposes of presenting pro forma financial information.  Therefore,  information
regarding these transactions is not included in the foregoing table, and Whitney
historical amounts have not been restated to reflect the completed acquisitions.
See "Unaudited Pro Forma Condensed Combined Financial Information."


                                        x

<PAGE>
                                   THE MEETING


General

         This Proxy  Statement-Prospectus  is furnished to shareholders of First
National Bankshares, Inc. ("FNB") in connection with the solicitation of proxies
on behalf of its Board of Directors for use at a special meeting of shareholders
of FNB  (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
   adjournment or postponement thereof.    

         FNB and Whitney Holding Corporation  ("Whitney") have each supplied all
information   included   herein  with   respect  to  it  and  its   consolidated
subsidiaries.  FNB and its subsidiaries are sometimes  collectively  referred to
herein as "FNB's  consolidated  group"  and  Whitney  and its  subsidiaries  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  October 11,  1996,  as amended,
between Whitney and its wholly-owned  banking subsidiary,  Whitney National Bank
("Whitney  Bank"),  on the one hand,  and FNB and its  wholly-owned  subsidiary,
First  National  Bank of Houma  ("FNBH"),  on the other,  and the related  Joint
Agreement of Merger between Whitney and FNB (the "Company Merger Agreement" and,
together with the Agreement and Plan of Merger, the "Plan of Merger").  Pursuant
to the Plan of Merger,FNB will merge into Whitney (the "Company Merger"), and,
   in due course,  FNBH will merge into  Whitney  Bank (the "Bank  Merger,"     
which, together with the Company Merger,  are  collectively  called the 
"Mergers").  In consideration  of the Company Merger,  each outstanding share of
common stock, $2.50 par value,  of FNB ("FNB Common Stock") will be converted 
into a number of shares of common stock,  no par value,  of Whitney  ("Whitney 
Common Stock") as described  under the heading  captioned "The Plan of Merger - 
Description of the Plan of Merger --Conversion of Common Stock."

Shares Entitled to Vote; Quorum; Vote Required

         Only  holders of record of FNB Common Stock at the close of business on
   January 8, 1997 are entitled to notice of and to vote at the Meeting. On     
that date, there were 2,017,600 shares of FNB 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 the Meeting,  the presence at the Meeting,  in
person or by proxy,  of the holders of a majority of the  outstanding  shares of
FNB Common Stock is necessary to constitute a quorum. The Plan of Merger must be
approved by the  affirmative  vote of the holders of two-thirds of the shares of
FNB Common  Stock  present  in person or  represented  by proxy at the  Meeting.
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.    

         Louisiana law does not require that shareholders of Whitney approve the
Plan of Merger.

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 FNB Common  Stock
on the record date for the  Meeting to vote the shares of FNB Common  Stock held
by him as of such date. A shareholder  may use a proxy  regardless of whether he
or she  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, 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.  A proxy  may be  revoked  by (i)
giving written notice of revocation at any time before its

                                        1

<PAGE>
exercise to First National Bankshares,  Inc., 7910 Main Street, Houma, Louisiana
70360,  Attention:  Secretary, or (ii) executing and delivering to the Secretary
at any time before its exercise a later dated proxy.

         In addition to  soliciting  proxies by mail,  directors,  officers  and
employees of FNB and FNBH, 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 FNB Common Stock,
and FNB will  reimburse  such  parties  for  reasonable  out-of-pocket  expenses
incurred in connection therewith. FNB will pay the cost of soliciting proxies.

Employee Stock Ownership Plan

         Each employee of FNBH who is a  participant  in FNBH's  Employee  Stock
Ownership  Plan and Trust (the  "ESOP")  may direct the trustee of the ESOP (the
"Trustee")  as to the manner in which  shares of FNB Common  Stock  allocated to
such participant's  account under the ESOP (the "Plan Shares") shall be voted by
the Trustee at the Meeting on the  proposal to approve the Plan of Merger.  Each
ESOP  participant  has received  with this Proxy  Statement-Prospectus  a Voting
Instruction Card to be used by the participant to give voting  directions to the
Trustee.  In order to direct  the  Trustee  with  respect  to the voting of Plan
Shares, an ESOP participant must complete, sign, and date the Voting Instruction
Card and return it in the  envelope  provided so that it is received  before the
date specified therein.  The Trustee will cause the instructions  received prior
to the date  specified  in the Voting  Instruction  Card to be  tabulated  by an
independent  third party and will determine the aggregate  votes for and against
approval of the Plan of Merger. The Trustee will vote the Plan Shares held by it
on the  record  date for which it has  received  instructions  in the  manner so
determined. The Trustee will not vote any Plan Shares on the proposal to approve
the Plan of Merger to the extent  instructions  are not  received  with  respect
thereto. Approximately 66,840 shares of FNB Common Stock are held by the Trustee
pursuant to the ESOP on behalf of the participants in such plan.    

                               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 FNB will
become the  business,  properties,  debts and  liabilities  of Whitney,  and the
shareholders of FNB will become  shareholders of Whitney.  Upon  consummation of
the  Company  Merger,  FNBH  will  be  a  wholly-owned  subsidiary  of  Whitney.
Thereafter,  in due  course,  Whitney  intends  to cause a merger  of FNBH  into
Whitney Bank, at which time the business,  properties,  debts and liabilities of
FNBH will become the  business,  properties,  debts and  liabilities  of Whitney
Bank. The steps taken to achieve this result involve the following transactions:
(i) FNB will merge into  Whitney and the  separate  existence of FNB will cease;
(ii)  shareholders of FNB will receive the  consideration  described below under
the heading  captioned " -  Description  of the Plan of Merger --  Conversion of
   Common Stock" and (iii) FNBH will, in due course, merge into Whitney Bank    
and the separate existence of FNBH will cease.

Background

         During 1993 and 1994, the FNB Board of Directors  developed a strategic
plan to remain a strong  community  banking  institution and, in connection with
that, to consider expansion of FNB's franchise through possible  acquisitions by
FNB. In connection  with that strategic plan, the Board retained the services of
an investment banker (which was not  Robinson-Humphrey (as hereinafter defined))
(the "Initial  Investment Banker") and began preparations for the listing of the
FNB Common Stock on the AMEX.

         During the course of the Board's evaluation, with the assistance of the
Initial  Investment  Banker,  of potential  institutions  for acquisition by, or
possible "merger of equals" with, FNB, a larger financial  institution contacted
FNB and  expressed  an  interest  in  acquiring  FNB.  As  part  of the  Board's
   evaluation of the best course to enhance value for    

                                        2

<PAGE>
FNB's  shareholders,  the Board in late 1994  authorized the Initial  Investment
Banker,  through an  "indication  of  interest"  process,  to provide  financial
information  to that and several  other  larger  financial  institutions  and to
explore the level of interest of such  institutions  in an  acquisition  of FNB.
During  the  process  of  soliciting  such  indications  of  interest,  FNB  was
approached by Whitney, which was also supplied such financial  information.  The
Board,  with the  assistance  of the Initial  Investment  Banker,  evaluated the
indications of interest  received from the larger  financial  institutions  that
indicated an interest in acquiring  FNB and  determined  that the price at which
those  institutions  proposed  to acquire FNB was  inadequate.  In the Spring of
1995,  the Board  terminated  its  discussions  with  potential  acquirors  and,
thereafter,  resumed its  consideration of other avenues to enhance  shareholder
value, implemented listing of the FNB Common Stock on the AMEX in April of 1995,
and held  discussions  with  various  smaller  and  comparable  sized  financial
institutions  concerning  the  acquisition  of such  smaller  institutions  or a
"merger of equals," none of which proceeded beyond initial discussions.

         In June  1996,  William  L.  Marks,  Chairman  of the  Board  and Chief
Executive  Officer of Whitney,  contacted James J. Buquet,  Jr., Chairman of the
Board of FNB and FNBH, by telephone to indicate  Whitney's interest in acquiring
FNB. Subsequent  thereto,  members of the Board of Directors of FNB were advised
of the telephone call and, on June 28, 1996, a meeting was held between  members
of the Board of Directors of FNB and  representatives of Whitney,  at which time
the parties  discussed  the general  terms of any proposal  Whitney  might make,
including   the  range  of  suggested   value  for  FNB.  On  July  3,  1996,  a
Confidentiality  Agreement  and financial  information  with respect to FNB were
sent  by FNB to  Whitney,  which  Confidentiality  Agreement  was  executed  and
returned by Whitney on July 10, 1996.  Subsequent thereto, on July 19, 1996, Mr.
Marks  telephoned  Jerome H. Mire,  President  of FNB, and  indicated  Whitney's
interest  in  acquiring  FNB at a stated  value.  On that same date,  Mr.  Marks
confirmed his conversation with Mr. Mire by letter.

         On July 25,  1996,  the Board of Directors  of FNB met,  discussed  the
indication of interest  received  from  Whitney,  and approved the hiring of The
Robinson-Humphrey  Company, Inc.  ("Robinson-Humphrey") as its financial advisor
to  provide  advice  and  assistance  with  respect  to  strategic  alternatives
available to FNB, to perform related  valuation  analyses,  and to assist FNB in
the  event of a  merger  or  other  business  combination.  The  Board  selected
Robinson-Humphrey  based on its knowledge of financial  institutions  in general
and its  experience  as a  financial  advisor in  mergers  and  acquisitions  of
financial  institutions,  particularly  in  the  southern  region  of  the  U.S.
Thereafter,  on August 19, 1996,  Robinson-Humphrey  and special  counsel to FNB
made  presentations  to the  Board  of  Directors  of  FNB.  Robinson-Humphrey's
presentation  included a detailed  financial  analysis  of several  banks in the
southern United States who had been active in acquisitions,  including  Whitney,
and an  analysis  of  FNB,  assuming  that it  remained  independent.  At  these
presentations  Robinson-Humphrey  also  reviewed the  financial  terms of recent
Louisiana bank  acquisitions  as well as other bank  acquisitions  in the United
States.  Subsequent  to  that  meeting,   representatives  of  Robinson-Humphrey
contacted Mr. Marks with respect to the terms of Whitney's  proposed  offer and,
on August  29,  1996,  reported  to the Board of  Directors  of FNB in detail on
Whitney's response.

         Discussions  continued  between the parties and on  September  12, 1996
representatives  of  Robinson-Humphrey  made a  further  report  to the Board of
Directors of FNB and special counsel  reviewed with the Directors key unresolved
issues with respect to the proposed documentation of the transaction.  The Board
of Directors instructed FNB's  representatives to negotiate further with Whitney
with respect to the terms of the transaction and then report back to the Board.

         There  followed  further  discussions  between  representatives  of the
parties and their  respective  counsel.  Preliminary  due  diligence by Whitney,
which had begun  subsequent  to the  August  29,  1996  meeting  of the Board of
Directors of FNB,  continued,  and on September 26, 1996, the Board of Directors
of FNB met to hear a presentation by special  counsel on the proposed  Agreement
and Plan of Merger that had been  negotiated  between the parties.  In addition,
Robinson-Humphrey  made a detailed presentation to the Board of Directors on the
fairness of the  consideration  proposed to be provided by Whitney in connection
with the  proposed  transaction,  including a valuation  analysis of FNB and the
consideration proposed to be paid, detailed information with respect to Whitney,
including a comparison of Whitney with other financial institutions,  as well as
an  historical  financial  review and  analysis of Whitney  Common Stock and its
price  and  volume   history.   In   response   to   questions   of  the  Board,
Robinson-Humphrey  also advised the Board that although  certain other financial
institutions had the theoretical capacity, based on certain assumptions,  to pay
an equal or  higher  value  than that  represented  by the  consideration  being
offered by  Whitney,  Robinson-Humphrey  was of the view,  based on its  general
assessment of the strategic interests of such other potential acquirors, that it
would be
                                        3
<PAGE>
unlikely that other  potential  acquirors would have the willingness to pay such
equal or higher  amounts.  Subsequent  to the  September 26, 1996 meeting of the
Board of Directors,  Whitney conducted more extensive "due diligence"  following
which,  on October 11, 1996, the Board of Directors of FNB met,  special counsel
reviewed in detail with the Board of Directors a revised  draft of the Agreement
and Plan of Merger and related documents,  representatives of  Robinson-Humphrey
reviewed  again  with the Board the  consideration  that  Whitney  was  offering
pursuant to the proposed Agreement and Plan of Merger and advised the members of
the Board that Robinson-Humphrey was of the opinion that, from a financial point
of view, the consideration provided in the proposed Agreement and Plan of Merger
was fair to the  shareholders  of FNB.  Robinson-Humphrey  also  reiterated  its
previously-expressed  view  that it  would  be  unlikely  that  other  potential
acquirors  would have the  willingness  to pay an amount equal to or higher than
the  consideration  being  offered  by  Whitney.   Robinson-Humphrey  thereafter
confirmed  its  advice as to the  fairness  of the  consideration  to be paid by
Whitney by delivering  to the FNB Board of Directors  its written  opinion dated
   October 11, 1996, which has been updated through January 16, 1997. After    
approval by Whitney's  Board of  Directors  on  September  25, 1996 and by FNB's
Board of Directors on October 11, 1996,  Whitney and FNB executed the  Agreement
and Plan of Merger on October 11,  1996,  which was amended on December 10, 1996
to make certain technical changes.

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 FNB.
Determination  of the  consideration  to be received by FNB's  shareholders  was
based upon many  factors  considered  by the Boards of  Directors of Whitney and
FNB,  including  the  comparative  financial  condition,  historical  results of
operations,  current business and future prospects of Whitney, FNB, Whitney Bank
and FNBH, the market price and historical earnings per share of the common stock
of  Whitney  and FNB,  and the  desirability  of  combining  the  financial  and
managerial  resources of Whitney Bank and FNBH to pursue consumer and commercial
banking business in the markets currently served by FNBH.

         Whitney.  Whitney's  business strategy  includes  expansion in the Gulf
Coast region.  Whitney's  management  identified FNBH as an institution that fit
well with this strategy.  FNBH's five locations in Houma and Chauvin,  Louisiana
would expand  Whitney's  presence in  southeast  Louisiana,  bridging  Whitney's
metropolitan  New Orleans  branch  structure with its recently  acquired  Morgan
City, Franklin and Berwick, Louisiana branches to the west.

         In  deciding  to  pursue  an  acquisition  of FNB and  FNBH,  Whitney's
management and the Executive  Committee of Whitney's  Board of Directors  noted,
among other things, the following: (i) FNBH's deposit base and branch network in
Terrebonne Parish;  (ii) FNBH's stable,  experienced  management team and staff;
(iii)  FNBH's  performance  during  the  economic  downturns  of the  1980's  in
Louisiana;  and (iv) FNB's  capitalization and asset quality.  Other avenues for
expansion such as de novo  branching  were also  considered and determined to be
less  desirable  than a merger with FNBH because  FNBH's size and location  will
afford Whitney a base from which to build on what it believes to be the strength
of the Whitney name in Terrebonne Parish, Louisiana.

         FNB. The Board of Directors of FNB believes  that  approval of the Plan
of Merger is in the best interests of FNB and its shareholders.  In reaching its
decision to approve the terms of the Plan of Merger,  the Board of  Directors of
FNB  considered  a  number  of  factors,  including,   without  limitation,  the
following:

         1. The Board's familiarity with FNB's business,  operations,  financial
condition,  earnings and prospects,  and its  investigation  of similar  matters
concerning Whitney.

         2. The current and  prospective  economic  environment  and competitive
constraints facing FNB, including specifically the increasing regulatory burdens
on small, community based banks and the greater variety of products and services
that larger competitors can offer to customers.

         3.  The  price to be  received  by FNB's  shareholders,  including  the
substantial  premium which that price  represented  over the historical  trading
prices for FNB Common  Stock and the  favorable  comparison  to prices  recently
received by shareholders of other similarly  situated banks, and the relation of
such price to the Board's view of alternatives to the Mergers.

                                        4

<PAGE>
   
         4. The financial  presentations and advice of Robinson-Humphrey,  FNB's
independent  financial advisors,  and the opinion of Robinson-Humphrey  that the
consideration  to be  received  by FNB's  shareholders  pursuant  to the Plan of
Merger is fair to FNB and its shareholders from a financial point of view.
A copy  of such opinion, updated through the date of this Proxy Statement-
Prospectus, is attached hereto as Appendix B and is incorporated herein by 
reference.See "- Fairness Opinion of The Robinson-Humphrey Company, Inc." below.
    
         5. The expectation that the receipt of the Whitney Common Stock will be
a tax-free transaction to FNB's shareholders.

         6. The continued liquidity that the Plan of Merger would provide to
current FNB's shareholders.

         7. The effects of the Plan of Merger on customers and employees of FNB
and FNBH.

         The  discussion of the  information  and factors  considered  and given
weight by the Board of  Directors of FNB is not  intended to be  exhaustive.  In
view of the variety of factors  considered in connection  with its 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 FNB's Board of Directors

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

Fairness Opinion of The Robinson-Humphrey Company, Inc.

         General. FNB retained Robinson-Humphrey to act as its financial advisor
in connection  with the Mergers.  As part of its  investment  banking  business,
Robinson-Humphrey  is  regularly  engaged  in the  valuation  of  securities  in
connection with mergers and acquisitions,  negotiated  underwritings,  secondary
distributions  of  listed  and  unlisted  securities,  private  placements,  and
valuations for estate,  corporate and other  purposes.  FNB's Board of Directors
decided  to retain  Robinson-Humphrey  based on its  experience  as a  financial
advisor in mergers and  acquisitions  of  financial  institutions,  particularly
transactions in the southern region of the United States.  Robinson-Humphrey has
rendered an opinion to FNB's Board of Directors  that,  based on the matters set
forth therein,  the  consideration to be received pursuant to the Plan of Merger
is fair, from a financial point of view, to FNB and its  shareholders.  The text
of such  opinion is set forth in  Appendix B to this Proxy  Statement-Prospectus
and should be read in its entirety.

         The consideration to be received by FNB's shareholders  pursuant to the
Plan of Merger  was  determined  by FNB and  Whitney in their  negotiations.  No
limitations  were imposed by the Board of Directors  or  management  of FNB upon
Robinson-Humphrey  with  respect to the  investigations  made or the  procedures
followed by Robinson-Humphrey in rendering its opinion.

         In connection  with  rendering its opinion to FNB's Board of Directors,
Robinson-Humphrey  performed  a variety  of  financial  analyses.  However,  the
preparation of a fairness opinion involves various determinations as to the most
appropriate  and relevant  methods of financial  analysis and the application of
those methods to the particular  circumstances,  and, therefore, such an opinion
is not readily susceptible to summary description.

         In   conducting   its   analyses   and  in  arriving  at  its  opinion,
Robinson-Humphrey  has  not  conducted  a  physical  inspection  of  any  of the
properties  or  assets  of FNB,  and has not made or  obtained  any  independent
valuation or appraisals of any  properties,  assets or  liabilities  of FNB. Its
opinion is based on economic,  market and other  conditions as in effect on, and
the  information  made  available  to it as of,  the  date of its  analyses.  In
connection  with  rendering  its opinion,  Robinson-Humphrey  reviewed,  and has
assumed and relied upon the  accuracy and  completeness  of, the  financial  and
other information that was provided to it by FNB or that was publicly available,
including FNB's financial results for fiscal years 1991 through 1995 and for the
   first three quarters of 1996,  and held  discussions  with senior       
management of FNB. Robinson-Humphrey also studied published financial data 
concerning certain other publicly

                                        5
<PAGE>
traded banks  comparable to FNB,  certain  financial data relating to comparable
transactions and certain information and data relating to Whitney, including its
financial  statements  from  the  fiscal  years  1991  through  1995 and for the
six-month period ended June 30, 1996.

         Valuation Methodologies.  In connection with its opinion on the Company
Merger  and the  presentation  of that  opinion  to FNB's  Board  of  Directors,
Robinson-Humphrey  performed two valuation  analyses with respect to FNB: (i) an
analysis of prices and terms of recent comparable  transactions  involving banks
purchasing banks; and (ii) a discounted cash flow analysis.  For purposes of the
comparable  transaction analyses,  Whitney Common Stock was valued at $32.50 per
share. Each of these methodologies is discussed briefly below.

         Comparable  Transaction  Analysis.  Robinson-Humphrey  performed  three
analyses of premiums paid for selected banks with comparable  characteristics to
FNB.  Comparable  transactions  were  considered  to be (i)  transactions  since
January  1,  1995,  where the  seller  was a bank  located  in  Louisiana,  (ii)
transactions  since  January 1, 1996 where the seller was a bank  located in the
Southeast  with total assets  between $100 million and $500  million,  and (iii)
transactions  since January 1, 1996,  where the seller was a bank located in the
Southwest with total assets between $100 and $500 million.

         Based on the first of the foregoing classes of transactions,  financial
institutions  purchasing  banks in Louisiana since January 1, 1995, the analysis
yielded a range of transaction values to book value of 1.10 times to 2.71 times,
with a mean of 2.08  times  and a  median  of 2.15  times.  These  compare  to a
transaction value for the Company Merger of approximately  2.35 times FNB's book
value as of June 30, 1996.

         The  analysis  yielded a range of  transaction  values as a multiple of
tangible book value for the comparable  transactions  ranging from 1.42 times to
2.75 times, with a mean of 2.11 times and a median of 2.15 times.  These compare
to a transaction  value to tangible book value at June 30, 1996 of approximately
2.35 times for the Company Merger.

         The  analysis  yielded a range of  transaction  values as a multiple of
trailing twelve month earnings per share. These values ranged from 9.12 times to
24.86  times,  with a mean of 15.68  times  and a median of 16.21  times.  These
compare to a transaction  value to FNB's last twelve months  earnings as of June
30, 1996 of approximately 16.55 times for the Company Merger.

         The  analysis  yielded a range of  transaction  values as a percent  of
total assets.  These values ranged from 12.31 percent to 27.28  percent,  with a
mean of  19.76  percent  and a median  of  19.92  percent.  These  compare  to a
transaction  value to the June 30,  1996 total  assets of 19.53  percent for the
Company Merger.

         Based on  transactions  since  January 1, 1996,  where the seller was a
bank located in the Southeast  with total assets  between $100 and $500 million,
the analysis  yielded a range of transaction  values to book value of 0.93 times
to 2.47  times,  with a mean of 1.96  times  and a median of 2.03  times.  These
compare to a  transaction  value for the Company  Merger of  approximately  2.35
times FNB's book value as of June 30, 1996.

         The  analysis  yielded a range of  transaction  values as a multiple of
tangible book value for the comparable  transactions  ranging from 1.22 times to
2.54 times, with a mean of 2.01 times and a median of 2.03 times.  These compare
to a transaction  value to tangible book value at June 30, 1996 of approximately
2.35 times for the Company Merger.

         The  analysis  yielded a range of  transaction  values as a multiple of
trailing twelve month earnings per share. These values ranged from 5.43 times to
29.75  times,  with a mean of 19.59  times  and a median of 21.03  times.  These
compare to a transaction  value to FNB's last twelve months  earnings as of June
30, 1996 of approximately 16.55 times for the Company Merger.

         The  analysis  yielded a range of  transaction  values as a percent  of
total  assets.  These values ranged from 8.58 percent to 26.74  percent,  with a
mean of  19.34  percent  and a median  of  17.69  percent.  These  compare  to a
transaction  value to the June 30,  1996 total  assets of 19.53  percent for the
Company Merger.

                                        6
<PAGE>
         Based on  transactions  since  January 1, 1996,  where the seller was a
bank located in the Southwest  with total assets  between $100 and $500 million,
the analysis  yielded a range of transaction  values to book value of 1.26 times
to 2.51  times,  with a mean of 2.04  times  and a median of 2.17  times.  These
compare to a  transaction  value for the Company  Merger of  approximately  2.35
times FNB's book value as of June 30, 1996.

         The  analysis  yielded a range of  transaction  values as a multiple of
tangible book value for the comparable  transactions  ranging from 1.26 times to
3.00 times, with a mean of 2.12 times and a median of 2.17 times.  These compare
to a transaction  value to tangible book value at June 30, 1996 of approximately
2.35 times for the Company Merger.

         The  analysis  yielded a range of  transaction  values as a multiple of
trailing twelve month earnings per share. These values ranged from 8.46 times to
23.95  times,  with a mean of 13.85  times  and a median of 12.72  times.  These
compare to a transaction  value to FNB's last twelve months  earnings as of June
30, 1996 of approximately 16.55 times for the Company Merger.

         The  analysis  yielded a range of  transaction  values as a percent  of
total assets.  These values ranged from 15.69 percent to 25.41  percent,  with a
mean of  19.87  percent  and a median  of  18.94  percent.  These  compare  to a
transaction  value to the June 30,  1996 total  assets of 19.53  percent for the
Company Merger.

         No company or transaction used in the comparable  transaction  analyses
is  identical  to FNB.  Accordingly,  an analysis of the  foregoing  necessarily
involves  complex  considerations  and judgments,  as well as other factors that
affect the public trading value or the acquisition value of the company to which
it is being compared.

         Discounted  Cash Flow Analysis.  Using  discounted  cash flow analysis,
Robinson-Humphrey  estimated the present value of the future stream of after-tax
cash  flows  that FNB  could  produce  through  the  year  2000,  under  various
circumstances,   assuming   that   FNB   performed   in   accordance   with  the
earnings/return  projections  of  management  at the time that FNB entered  into
acquisition discussions in July 1996.  Robinson-Humphrey  estimated the terminal
value for FNB at the end of the period by applying multiples of earnings ranging
from 10.0 to 12.0x and then discounting the cash flow streams, dividends paid to
shareholders and terminal value using differing  discount rates ranging from 9.0
percent to 11.0 percent chosen to reflect  different  assumptions  regarding the
required rates of return of FNB and the inherent risk surrounding the underlying
projections.  This discounted cash flow analysis  indicated a reference range of
$22.4 million to $29.2 million, or $16.95 to $20.50 per share, for FNB.

         Compensation  of  Robinson-Humphrey.  FNB  has  paid  Robinson-Humphrey
$75,000 for its services to date, including the delivery of its fairness opinion
to the Board of Directors of FNB. If the Company Merger is consummated, FNB will
pay  Robinson-Humphrey  a fee equal to  $301,385  plus 2.5% of the excess of the
aggregate  value of the  transaction  in excess  of  $40,184,680  (less  amounts
previously paid). FNB also has agreed to reimburse Robinson-Humphrey for certain
expenses  reasonably  incurred  in  connection  with  their  engagement  and  to
indemnify  Robinson-Humphrey  against certain  liabilities arising in connection
with  its  engagement,  including  certain  liabilities  arising  under  federal
securities laws.

Description of the Plan of Merger

         General.  Pursuant  to  the  Plan  of  Merger,  if all  conditions  are
satisfied or waived, on the effective date of the Company Merger (the "Effective
Date"),  FNB will be merged into  Whitney,  the  separate  existence of FNB will
cease, and FNBH will become a wholly-owned  subsidiary of Whitney.  By reason of
the Company Merger, the outstanding shares of FNB Common Stock will be converted
into a number of shares of common  stock,  no par value,  of  Whitney  ("Whitney
Common Stock") with an "Average Market Price" (as defined in the Plan of Merger)
of  $41,000,000,  or  approximately  $20.32 per share of FNB Common  Stock.  The
actual number of shares of Whitney  Common Stock that will be received by an FNB
shareholder by reason of the Company Merger will vary depending upon the Average
Market Price of the Whitney  Common Stock.  See "- Conversion of Common  Stock,"
below.

         Conversion  of  Common  Stock.   The  Plan  of  Merger   provides  that
shareholders  of FNB will  receive a total  number of shares of  Whitney  Common
Stock equal to $41,000,000,  divided by the "Average Market Price" of a share of
Whitney  Common Stock (with cash being paid in lieu of fractional  shares).  The
"Average Market Price" is defined
                                        7

<PAGE>
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 that 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, as reported in the Wall Street  Journal;  provided,
however,  that if the Average  Market Price as so calculated is less than $28.50
or greater than $36.50, the "Average Market Price" to be used in calculating the
number of shares of  Whitney  Common  Stock to be issued in the  Company  Merger
shall be $28.50 or $36.50, as the case may be.  Accordingly,  if the calculation
of the Average  Market Price of Whitney  Common Stock results in an amount equal
to or greater than $36.50, then approximately 1,123,288 shares of Whitney Common
Stock  will be issued in the  Company  Merger,  notwithstanding  that the actual
market value of those shares may be greater than $41,000,000. Conversely, if the
Average  Market Price of Whitney  Common Stock  results in an amount equal to or
less than $28.50, approximately 1,438,596 shares of Whitney Common Stock will be
issued in the Company Merger,  notwithstanding that the aggregate value of those
shares may be less than $41,000,000.

         The  following  table  sets forth  examples  of the number of shares of
Whitney  Common  Stock  into  which  each  share of FNB  Common  Stock  would be
converted on the  Effective  Date,  assuming  that the Average  Market Price for
Whitney Common Stock is as specified below.


   
     Assumed Average        Total Number of Shares of         Number of Whitney
Market Price of Whitney        Whitney Common Stock              Shares Per
      Common Stock                 To Be Issued                 FNB Share(1)
- -----------------------     -------------------------         ------------------
        $28.50(2)                    1,438,596                       0.7130
         30.50                       1,344,262                       0.6663
         32.50                       1,261,538                       0.6253
         34.50                       1,188,406                       0.5890
         36.50(3)                    1,123,288                       0.5567
- ------------------------
    (1)Based on  2,017,600  shares of FNB  Common  Stock,  the  number of shares
       outstanding on January 8, 1997. Due to fluctuations in the trading prices
       of Whitney  Common Stock,  the actual number of shares of Whitney  Common
       Stock  to  be  received  by  FNB's   shareholders   cannot  currently  be
       determined.
    

    (2)Minimum "Average Market Price" under the terms of the Plan of Merger.

    (3)Maximum "Average Market Price" under the terms of the Plan of Merger.

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

         On January 8, 1997,  the closing  trading  price for a share of Whitney
Common  Stock was  $35.00,  and if such date had been the  Effective  Date,  the
Average Market Price would have been approximately $34.86.    

         Inasmuch  as the  consideration  to be paid by Whitney  in the  Company
Merger will be based on the "Average  Market  Price" of Whitney  Common Stock as
defined in the Plan of Merger,  the actual  value on the  Effective  Date of the
shares to be received by holders of FNB Common  Stock in the Company  Merger may
be more or less than the Average  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 FNB who would  otherwise be entitled  thereto will receive a cash
payment  (without  interest)  equal to such fractional  share  multiplied by the
Average Market Price. The per share exchange ratio in the Company Merger will be
   less than one-to-one; accordingly, any FNB shareholder holding fewer than    
two shares of FNB Common Stock will not receive any  Whitney Common Stock in the
Company Merger,  but instead will receive solely cash in exchange for his shares
of FNB Common Stock.

                                        8

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

         Exchange of Certificates.  On the Effective Date, each FNB shareholder
will cease to have any rights as a shareholder of FNB and his sole rights will 
pertain to the shares of Whitney Common Stock into which his shares of FNB
Common Stock have been converted pursuant to the Company Merger. See "Absence of
Dissenters' Rights."

         Promptly  after the  consummation  of the  Company  Merger,  Whitney is
required  (a) to deposit  with the  exchange  agent  selected by Whitney for the
Company 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 FNB Common  Stock and (b) send or cause to be sent to each  person who
was a  shareholder  of  record  of  FNB  on  the  Effective  Date  a  letter  of
transmittal,  together  with  instructions  for  the  exchange  of  certificates
representing shares of FNB Common Stock for certificates  representing shares of
Whitney Common Stock.

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

         After  the   Effective   Date  and  until   surrendered,   certificates
representing  FNB 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 FNB who become  holders of Whitney  Common Stock
pursuant to the Company  Merger any  dividends or other  distributions  that may
have become payable to holders of record of Whitney  Common Stock  following the
Effective  Date  until  they  have  surrendered  their  certificates  evidencing
ownership  of shares of FNB Common  Stock,  at which time any such  dividends or
other distributions will be paid, without interest.

         Shareholders  of FNB who cannot  locate  their stock  certificates  are
urged to contact promptly:
                                Sharon T. Roppolo
                          First National Bank of Houma
                                  P.O. Box 6096
                             Houma, Louisiana 70361
                                 (504) 853-7410

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 FNB
and  Whitney  against  any claim that may be made  against FNB or Whitney by the
owner of the  certificate(s)  alleged  to have  been lost or  destroyed.  FNB 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 FNB and Whitney.

         Transfer  and  Exchange  Agents.  Boatmen's  Trust  Company  serves  as
Transfer  Agent and Registrar for Whitney  Common Stock and will act as Exchange
Agent in connection with the Company Merger.  The trust  department of FNBH acts
as Transfer Agent and Registrar for the FNB Common Stock.

         Regulatory  Approvals and Other  Conditions of the Company  Merger.  In
addition to approval by the  shareholders  of FNB and  satisfaction of the other
conditions described below,  consummation of the Company Merger will require the
approval of the Board of Governors of the Federal  Reserve  System (the "Reserve
Board").  On November 22, 1996,  Whitney filed an  application  with the Reserve
Board  seeking  approval of the Company  Merger.  Whitney is currently  awaiting
final approval of that application;  however,  there can be no assurance that it
will be obtained prior to 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 in all  material  respects of the    
representations
                                        9
<PAGE>
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,  business or prospects of the other  party's
consolidated   group,  (ii)  the  receipt  by  Whitney  of  required  regulatory
approvals,  (iii) the receipt by Whitney of  assurances  that the Mergers may be
accounted for as a pooling of interests,  (iv) the receipt by Whitney and FNB of
opinions as to qualification of the Mergers as a tax-free  reorganization  under
applicable law, (v) FNB's receipt of a letter from  Robinson-Humphrey,  dated as
of the  date  of the  Meeting,  in  form  and  substance  satisfactory  to  FNB,
confirming  its  fairness  opinion  to the  Board of  Directors  of FNB and (vi)
certain other conditions customary for agreements of this sort.

         The  parties  intend  to  consummate  the  Company  Merger  as  soon as
practicable  after all of the  conditions to the Company Merger have been met or
waived;  however,  there can be no assurance  that the conditions to the Company
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 Joint Agreement of Merger  respecting
the Company Merger will be executed by Whitney and FNB and filed for recordation
with the  Secretary  of State  of  Louisiana,  and the  Company  Merger  will be
effective  at the  date  and  time  specified  in a  certificate  issued  by the
Louisiana Secretary of State. The Plan of Merger provides that Whitney may delay
consummation of the Bank Merger, and it is intended that the Bank Merger will be
consummated  in due course after  consummation  of the Company  Merger,  but not
later  than the last  quarter  of 1997.  The  Office of the  Comptroller  of the
Currency would have to approve the Bank Merger.  Whitney and FNB are not able to
predict  the  effective  date of the  Company  Merger or the Bank  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 Company Merger."

         Conduct of  Business  Prior to the  Effective  Date.  FNB and FNBH have
agreed  pursuant to the Plan of Merger that,  prior to the Effective  Date, each
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,  each 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 capital stock or securities or obligations convertible into
or exchangeable  therefor except the payment of regular  quarterly  dividends by
FNB in amounts not to exceed $.07 per share  payable  quarterly  (in the case of
dividends  declared in 1996) and up to $.08 per share payable  quarterly (in the
case of dividends  declared in 1997),  provided  that any increase from $.07 per
share does not disqualify the Mergers as a  pooling-of-interests  for accounting
purposes or as a  "reorganization"  within the meaning of Section  368(a) of the
Internal  Revenue  Code  of  1986,  as  amended;   (b)  amend  its  Articles  of
Incorporation  or  Association  or By-Laws 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 except (i) such agreements as are terminable at
will without penalty or other payment by it, or increase the compensation of any
such person in any manner  inconsistent  with its past  practices and (ii) after
consultation with Whitney's chief executive officer, bonuses to certain officers
and employees in amounts not exceeding  $150,000 in the aggregate  (such bonuses
to be paid on the full  conversion of FNBH's data  processing  system to Whitney
Bank's  system and in no event later than  November 1, 1997);  (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 expressly 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 any act that is intended or reasonably may be expected to
result  in any of its  representations  and  warranties  becoming  untrue in any
material  respect or in any of the conditions to the Mergers not being satisfied
or in a  violation  of any  provision  of the Plan of  Merger,  except as may be
required  by  applicable  law;  (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

                                       10
<PAGE>
have been established;  (j) dispose of investment  securities in amounts or in a
manner  inconsistent with past practices,  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 100% of its book value as of June 30, 1996;
(m) make any  extension of credit that,  when added to all other  extensions  of
credit to a borrower and its affiliates, would exceed FNB's or FNBH's applicable
regulatory  lending limits;  (n) take or cause to be taken any action that would
disqualify the Mergers 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,  FNB and FNBH have  agreed  that  neither  of them  will,
without  the prior  approval  of  Whitney,  solicit  or  initiate  inquiries  or
proposals with respect to, or, except to the extent determined by FNB's Board of
Directors in good faith,  after  consultation  with its  financial  advisors and
legal counsel,  to discharge  properly the directors'  fiduciary duties to FNB's
consolidated group and its 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
Company Merger to FNB's  shareholders.  FNB and FNBH have 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  FNB and  Whitney,  that they will each
instruct their respective officers,  directors, agents and affiliates to refrain
from doing any of the foregoing and that they 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,  FNB,  FNBH or any of their  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 FNB or FNBH from taking any action
that in the  opinion of  counsel to FNB is  required  by law or is  required  to
discharge  his  fiduciary  duties  to  the  FNB's  consolidated  group  and  its
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 Company Merger other than approval by the  shareholders of the
FNB or FNBH,  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 Company Merger, and FNB's
receipt of a letter from  Robinson-Humphrey  dated the date of the  Meeting,  in
form and substance satisfactory to FNB, confirming  Robinson-Humphrey's fairness
opinion to the Board of Directors of FNB. 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 FNB, by
the mutual agreement in writing of the Boards of Directors of the parties to the
   Plan of Merger; provided that, under the Louisiana Business Corporation     
   Law (the "LBCL"), any amendment made subsequent to shareholder approval     
of the Company Merger may not alter the amount or type of shares into which the
FNB Common Stock will be converted, alter any term of the Articles of
Incorporation of Whitney as the surviving entity, or alter any term or condition
of the Plan of Merger in a manner that would adversely affect any shareholder of
FNB. 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.

         The Plan of Merger may be terminated at any time prior to the Effective
Date by (i) the mutual consent of the respective  Boards of Directors of Whitney
and FNB; (ii) the Board of Directors of either  Whitney or FNB 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 45 days after written  notice of such breach or June 30, 1997;
(iii) the Board of  Directors  of either  Whitney or FNB if by June 30, 1997 all
the  conditions  to closing  required by the Plan of Merger have not been met or
waived or cannot be met, or the  Company  Merger has not  occurred,  by June 30,
   1997; (iv) either party if the Plan of Merger fails to receive the    
requisite vote of FNB's shareholders;  (v) Whitney if FNB's Board of Directors
(A) withdraws,  modifies  or  changes  its  recommendation  to its  shareholders
as contained
                                       11
<PAGE>


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 any member of FNB's consolidated group or any
acquisition  of 15% or more of any class of FNB's capital stock or (C) makes any
announcement  of a proposal,  plan or intention to do any of the  foregoing;  or
(vi) FNB,  if FNB  receives  a written  offer with  respect  to any  transaction
described  in (v) above and the Board of  Directors  of FNB  determines  in good
faith,  after  consultation with its financial  advisors and counsel,  that such
transaction  is more  favorable  to FNB's  shareholders  than  the  transactions
contemplated  by  the  Plan  of  Merger.  The  Plan  of  Merger  provides  for a
termination  fee of $2,000,000  payable to Whitney if FNB terminates the Plan of
Merger  under  the  circumstances  described  in  clause  (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.

Interests of Certain Persons

         Employee  Benefits.  Whitney has agreed that, at the effective  time of
the Company Merger,  all persons then employed by FNB and FNBH 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 FNB and FNBH employees who are employed at
the effective time of the Company Merger will be given full credit for all prior
service as employees of FNB or FNBH, provided,  however, that all such employees
shall be treated as newly  hired  Whitney  Bank  employees  for all  purposes of
Whitney's or Whitney Bank's Defined  Benefit  Pension Plan (i.e.,  prior service
credit with FNB and FNBH will not be considered in determining  future  benefits
under Whitney's or Whitney Bank's Defined Benefit Pension Plan).

         ESOP. Whitney intends to terminate FNBH's Employee Stock Ownership Plan
(the "Plan") after the Effective Date,  which will cause all participants in the
Plan,  including  certain  directors and executive  officers of FNB and FNBH, to
become fully vested in their Plan interests.

         Change in Control and Other Agreements.  FNB and FNBH have entered into
agreements  with six of their  executive  officers and other key employees  (the
"Agreements")  under which  payments  will be made to such persons under certain
circumstances  following  a change in  control  of FNB.  One of these  executive
officers is also a director of FNB and FNBH, and one is a director of FNBH only.
The  Agreements  provide for a lump sum  payment to the  employee  if,  within a
two-year period following a change in control of FNB, the employee's  employment
with  FNB or FNBH (or  their  successors)  is  terminated  without  Cause or the
employee   terminates  his  employment   for  Good  Reason.   The   transactions
contemplated  by the Plan of Merger  would  constitute  a change in control  for
purposes of the Agreements and would trigger such  employees'  rights to receive
payments under the circumstances described above.

         "Cause" is defined as the willful and continued failure by the employee
to perform  substantially  the duties and  responsibilities  consistent with his
position (other than any such failure  resulting from the employee's  incapacity
due to  physical or mental  illness);  the  employee's  becoming  physically  or
mentally  disabled so as to be unable to perform his duties on a full time basis
for a period of more  than 180  consecutive  business  days or for more than 180
business days in any 12-month  period;  and, the  employee's  committing,  being
arrested or otherwise  officially  charged with, a felony or any crime involving
moral  turpitude  or any other  criminal  or  unethical  conduct  that the Board
determines would materially impair the employee's  ability to perform his duties
or would materially impair the business reputation of FNB or FNBH.

         "Good Reason" is defined to include,  among other  things,  a change in
the employee's status, title or position to a status, title or position that, in
his reasonable  judgment,  is not the equivalent of an executive position with a
financial  institution;  a  reduction  in the  employee's  salary  as in  effect
immediately prior to the change in control other than reductions aggregating not
more  than 10% of such  salary  in  connection  with an  overall  executive  pay
reduction program; the failure by FNB or FNBH to continue to provide benefits to
the  employee  substantially  similar  to  those  provided  to  other  executive
officers; the requiring of the employee to be based anywhere other than within a
35 mile radius of Houma,  Louisiana; or the failure by FNB or FNBH to obtain the
assumption of the Agreements by any successor.


                                       12

<PAGE>
         Under the Agreements,  upon a termination for which a severance payment
is required,  an amount must be paid to the employee  equal to the average total
annual  compensation  paid by FNB,  FNBH or both to the employee and reported as
gross  income  for 1994 and any  subsequent  taxable  years  ending  before  the
employee's  termination  (the "Base  Amount").  In the case of the President and
Chief  Executive  Officer  of FNB,  such  payment is equal to two times the Base
Amount.

         The  Agreements  require  assumption by Whitney in connection  with the
Plan of Merger,  and Whitney  intends to notify FNB, no later than 30 days prior
to the Effective Date, of the Agreements that it intends to expressly assume. If
Whitney does not agree to assume an Agreement, FNB is obligated to terminate the
Agreement of that employee,  in which case the employee would be entitled to the
payment described above.

         Pursuant  to an  agreement  entered  into among FNB,  FNBH and a former
executive  officer of FNB in connection with his resignation  from all executive
positions with FNB and FNBH, the former  executive  officer has agreed to remain
an employee of FNBH with his regular salary and benefits through the date of the
full  conversion  of FNBH's  data  processing  system to that of Whitney  Bank's
system, if the Company Merger is consummated, but in no event beyond November 1,
1997,  whether or not the Company  Merger is  consummated.  The  agreement  also
provides that, if the Company Merger is consummated,  the former officer will be
paid a bonus in an amount equal to three  months'  base  salary,  payable on the
last day of the term of the agreement.

         Indemnification  and  Insurance.  Whitney has agreed that all rights to
indemnification   and  all  limitations  of  liability   existing  in  favor  of
indemnified parties under FNB's Articles of Incorporation and By-Laws and in the
Articles of Incorporation  and By-Laws of FNBH (as the case may be) as in effect
on  October  11,  1996 with  respect  to  matters  occurring  prior to or at the
effective time of the Company 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 FNB and FNBH
immediately  prior to the effective time of the Company Merger to be covered for
three years thereafter by the directors and officers liability  insurance policy
maintained  by FNB and FNBH (or a  substitute  policy)  with  respect to acts or
omissions  occurring  prior to or at the effective  time of the Company  Merger,
subject to certain  conditions.  In addition,  Whitney has agreed to  indemnify,
under certain conditions,  FNB's and FNBH'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 FNB or FNBH owns any shares of
Whitney  Common  Stock other than 5,024 shares  beneficially  owned by Hilton J.
Michel, Jr. and 200 shares beneficially owned by Peter T. Lemann. No director or
executive officer of Whitney has any personal interest in the Mergers other than
by reason of his  holdings of Whitney  Common  Stock,  nor do such  directors or
executive officers own any shares of FNB Common Stock.

Status Under Federal Securities Laws; Certain Restrictions on Resales

         The shares of Whitney Common Stock to be issued to  shareholders of FNB
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 FNB.

         Directors and certain  officers and shareholders of FNB and FNBH may be
deemed to be  "affiliates"  of FNB. Such persons may resell Whitney Common Stock
received  by  them  pursuant  to the  Company  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 or her in  violation  of the
Securities  Act.  This  Proxy  Statement-Prospectus  does not cover  resales  of
Whitney Common Stock offered hereby to be received by FNB shareholders deemed to
   be "affiliates" of FNB.    

         Further,   in   accordance   with  the   requirements   for  using  the
pooling-of-interests  method of accounting,  FNB  shareholders who may be deemed
"affiliates"  of FNB have agreed not to sell the shares of Whitney  Common Stock
received by them in the Company  Merger  until at least 30 days of  post-closing
combined earnings of Whitney and FNB

                                       13
<PAGE>

have been  published by Whitney.  Whitney has agreed to publish such an earnings
release as promptly as practicable following receipt of such financial results.

Accounting Treatment

         It is a condition to Whitney's  obligation  to  consummate  the Company
Merger that (i) it receive  certain  assurances  from FNB's  independent  public
accountants  that the Mergers  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  FNB
information,  the  recorded  assets and  liabilities  of Whitney and FNB 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 FNB for the entire  fiscal year in which the Company  Merger  occurs and the
reported  earnings of Whitney  and FNB 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 Company Merger" and "- Status Under Federal  Securities  Laws;
Certain Restrictions on Resales."

                          ABSENCE OF DISSENTER'S RIGHTS

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

                     CERTAIN FEDERAL INCOME TAX CONSEQUENCES

         The  following is a summary of the opinion of Arthur  Andersen LLP that
Whitney and FNB expect to receive  concerning  the material  federal  income tax
consequences  to holders of FNB Common Stock  resulting from the Plan of Merger.
Consummation  of the Company Merger is  conditioned  upon receipt by Whitney and
FNB 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 FNB.

         (a) Provided that  shareholders  of FNB receive and retain a sufficient
amount of Whitney Common Stock to satisfy  requirements  regarding continuity of
interest,   the  Mergers  will  qualify  as   reorganizations   under   Sections
368(a)(1)(A) of the Internal Revenue Code of 1986, as amended (the "Code"). FNB,
FNBH, 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 FNB, FNBH, Whitney or Whitney
Bank as a result of the Mergers.

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

         (d) The tax basis of the shares of Whitney  Common Stock to be received
by FNB's  shareholders  pursuant to the  Company  Merger will be the same as the
basis of the  shares of FNB  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.

         (e) The  holding  period of the  shares of Whitney  Common  Stock to be
received by FNB's  shareholders  pursuant to the Company  Merger  will,  in each
instance,  include the  holding  period of the  respective  shares of FNB Common
Stock exchanged therefor,  provided that the shares of FNB Common Stock are held
as capital assets on the Effective Date.


                                       14
<PAGE>
         (f) The  payment of cash to FNB's  shareholders  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 FNB consult his
personal tax advisor concerning the applicable  federal,  state and local income
tax consequences of the Mergers.

          UNAUDITED PRO FORMA CONDENSED COMBINED FINANCIAL INFORMATION

         The  following   unaudited  pro  forma  condensed   combined  financial
information  should  be read in  conjunction  with  the  consolidated  financial
statements  and  notes  thereto  of  Whitney's  consolidated  group and of FNB's
consolidated group incorporated  herein by reference.  The pro forma information
is presented for illustrative purposes only and is not necessarily indicative of
the  operating  results or financial  position  that would have  occurred if the
Company Merger had been consummated in accordance with the assumptions set forth
under "Notes to Unaudited Pro Forma Condensed  Combined  Financial  Statements,"
nor is it  necessarily  indicative  of future  operating  results  or  financial
position.

         As discussed in the Notes to the Unaudited Pro Forma Condensed Combined
Financial Statements,  Whitney Common Stock is assumed to have an Average Market
Price of $32.50 per share, which,  assuming 2,017,600 shares of FNB Common Stock
outstanding  on the  Effective  Date,  would result in the issuance of 1,261,538
shares of Whitney  Common  Stock (an exchange  ratio of 0.6253)  pursuant to the
   Plan of Merger.  See "The Plan of Merger - Description  of the Plan of     
   Merger -- Conversion of Common Stock."    

         On March 8,  1996,  Whitney  completed  a merger  with  First  Citizens
BancStock, Inc. ("Citizens") and its wholly-owned subsidiary, The First National
Bank in St. Mary  Parish,  which was  accounted  for as a pooling of  interests;
accordingly,  Whitney's  financial  statements have been restated to include the
operations of Citizens.

         On October 25, 1996,  Whitney  completed  mergers with Liberty  Holding
Company,  its  majority-owned  subsidiary,  Liberty Bank,  and American Bank and
Trust (all of Pensacola,  Florida).  These mergers (collectively  referred to as
the  "Florida  acquisitions")  will be  accounted  for as poolings of  interest.
Whitney has also  entered into a definitive  agreement  dated  November 14, 1996
with Merchants Bancshares,  Inc. ("Merchants") and its majority-owned subsidiary
Merchants Bank & Trust Co. ("Merchants Bank"), pursuant to which Merchants would
merge with and into Whitney,  and Whitney  would acquire all of the  outstanding
shares of Merchants Bank through either a merger with a subsidiary of Whitney or
a share  exchange  with  Whitney,  all of which  are  expected  to  qualify  for
pooling-of-interests  accounting  treatment.  See  "Information  About Whitney -
General"  and  "Information   About  Whitney  -  Recent   Developments."   These
acquisitions  are not considered  material to Whitney for purposes of presenting
pro forma financial  information;  therefore,  information  regarding Merchants,
Merchants Bank and the Florida acquisitions is not included in the following pro
forma financial  statements,  and Whitney's historical financial statements have
not been restated to reflect the completed Florida acquisitions.

         The unaudited pro forma condensed  combined  balance sheet at September
30,  1996,  set forth  below,  gives  effect  to the  Company  Merger  under the
pooling-of-interests  accounting method as if the Company Merger had occurred on
September 30, 1996.  The unaudited pro forma  condensed  combined  statements of
income for the years ended December 31, 1995,  1994 and 1993 and the nine months
ended September 30, 1996 and 1995 combine the historical statements of income of
Whitney and FNB as if the  Company  Merger had been  effective  as of January 1,
1993. The cost associated with the Company Merger, estimated to be $2.1 million,
will be  accounted  for as a current  period  expense upon  consummation  of the
Company Merger and has not been reflected in the pro forma financial statements.


                                       15
<PAGE>


                           WHITNEY HOLDING CORPORATION

                   PRO FORMA CONDENSED COMBINED BALANCE SHEET
                                   (Unaudited)

                               September 30, 1996
                                 (In Thousands)
<TABLE>
<C>                                                  <C>               <C>             <C>           <C>        
                                                        Whitney              FNB        Pro Forma      Pro Forma
                                                     (Consolidated)    (Consolidated)  Adjustments     Combined
                                                     --------------    --------------  -----------   ------------
ASSETS

Cash and due from financial institutions..........   $   210,320       $    8,383                    $   218,703
Interest-bearing deposits in financial institutions            -            3,200                          3,200
Securities available for sale.....................       124,497           64,349                        188,846
Securities held to maturity.......................     1,249,120           10,874                      1,259,994
Federal funds sold................................           300                -                            300
Loans and leases..................................     1,795,725          121,212                      1,916,937
Less: reserve for possible loan losses............        43,198            1,951                         45,149
                                                     -----------       ----------                    -----------
Net loans and leases..............................     1,752,527          119,261                      1,871,788
Bank premises and equipment (net).................       101,575            5,195                        106,770
Other real estate owned (net).....................         2,837              956                          3,793
Other assets......................................        74,113            6,414                         80,527
                                                     -----------       ----------       --------     -----------
       TOTAL ASSETS...............................   $ 3,515,289        $ 218,632             $0     $ 3,733,921
                                                     -----------       ==========       ========     ===========
LIABILITIES
Deposits..........................................   $ 2,696,506       $  192,395                     $2,888,901
Federal funds purchased and other borrowings......       404,696            6,947                        411,643
Accrued expenses and other liabilities............        29,622            1,300                         30,922
                                                     -----------       ----------                    -----------
       TOTAL LIABILITIES..........................   $ 3,130,824       $  200,642                     $3,331,466
EQUITY
Capital stock.....................................        $2,800           $5,044        ($5,044)         $2,800
Capital surplus...................................        67,628           16,454          5,044          89,126
Retained earnings (accumulated deficit)...........       322,305           (2,069)                       320,236
Net unrealized holding gains (losses) on
    available-for-sale securities.................          (165)          (1,439)                        (1,604)
Less: Treasury stock..............................         8,103                -                          8,103
                                                     -----------       ----------                    -----------
       TOTAL EQUITY...............................   $   384,465       $   17,990                    $   402,455

       TOTAL LIABILITIES AND
       SHAREHOLDERS' EQUITY.......................    $3,515,289         $218,632             $0      $3,733,921
                                                     ===========       ==========       ========     ===========
</TABLE>
                             See accompanying notes.


                                       16

<PAGE>



                           WHITNEY HOLDING CORPORATION

                  PRO FORMA CONDENSED COMBINED INCOME STATEMENT
                                   (Unaudited)

                      Nine Months Ended September 30, 1996
                      (In Thousands, except for share data)


<TABLE>
<C>                                                 <C>               <C>                <C>            <C>
                                                        Whitney             FNB           Pro Forma     Pro Forma
                                                    (Consolidated)    (Consolidated)     Adjustments     Combined
                                                    --------------    --------------     -----------   ----------

Interest income...................................     $ 172,907         $ 11,323                      $ 184,230
Interest expense..................................        63,613            4,869                         68,482
                                                       ---------         --------                      ---------
Net interest income...............................       109,294            6,454                        115,748
Provision for (reduction in) reserves for possible
   loan losses....................................             0              100                            100
                                                       ---------         --------                      ---------
Net interest income after provision
   for possible loan losses.......................       109,294            6,354                        115,648
Non-interest income...............................        27,232            1,556                         28,788
Non-interest expense..............................        95,030            5,240                        100,270
Income before income taxes........................        41,496            2,670                         44,166
Income taxes......................................        12,984              902                         13,886
                                                       ---------         --------                      ---------
Net income........................................     $  28,512         $  1,768                      $  30,280
                                                       =========         ========                      =========

Weighted average shares outstanding:
  Primary.........................................    17,143,567        1,261,538                     18,405,105
  Fully diluted...................................    17,178,788        1,261,538                     18,440,326

Earnings per share:
  Primary.........................................         $1.66            $1.40                          $1.65
  Fully diluted...................................         $1.66            $1.40                          $1.64

</TABLE>

                             See accompanying notes.


                                       17

<PAGE>



                           WHITNEY HOLDING CORPORATION

                  PRO FORMA CONDENSED COMBINED INCOME STATEMENT
                                   (Unaudited)

                      Nine Months Ended September 30, 1995
                      (In Thousands, except for share data)


<TABLE>
<C>                                                 <C>               <C>                <C>             <C>  
                                                        Whitney             FNB           Pro Forma     Pro Forma
                                                    (Consolidated)    (Consolidated)     Adjustments     Combined
                                                    --------------    --------------     -----------   ----------
Interest income...................................     $ 156,228         $ 11,509                      $ 167,737
Interest expense..................................        52,603            4,446                         57,049
                                                       ---------         --------                      ---------
Net interest income...............................       103,625            7,063                        110,688
Provision for (reduction in) reserves for possible
   loan losses....................................        (9,750)               0                         (9,750)
                                                       ---------         --------                      ---------
Net interest income after provision
   for possible loan losses.......................       113,375            7,063                        120,438
Non-interest income...............................        25,083            1,377                         26,460
Non-interest expense..............................        88,620            5,905                         94,525
Income before income taxes........................        49,838            2,535                         52,373
Income taxes......................................        15,765              852                         16,617
                                                       ---------         --------                      ---------
Net income........................................     $  34,073         $  1,683                      $  35,756
                                                       =========         ========                      =========

Weighted average shares outstanding:
  Primary.........................................    16,793,048        1,261,538                     18,054,586
  Fully diluted...................................    16,793,048        1,261,538                     18,054,586

Earnings per share:
  Primary.........................................         $2.02            $1.33                          $1.98
  Fully diluted...................................         $2.02            $1.33                          $1.98

</TABLE>
                             See accompanying notes.

                                       18

<PAGE>



                           WHITNEY HOLDING CORPORATION

                  PRO FORMA CONDENSED COMBINED INCOME STATEMENT
                                   (Unaudited)

                          Year Ended December 31, 1995
                      (In Thousands, except for share data)

<TABLE>
<C>                                                 <C>               <C>                <C>           <C>         
                                                        Whitney             FNB           Pro Forma     Pro Forma
                                                    (Consolidated)    (Consolidated)     Adjustments     Combined
                                                    --------------    --------------     -----------    ----------

Interest income...................................     $ 213,295         $ 15,327                      $ 228,622
Interest expense..................................        71,867            6,110                         77,977
                                                       ---------         --------                      ---------
Net interest income...............................       141,428            9,217                        150,645
Provision for (reduction in) reserves for possible
  loan losses.....................................        (9,400)               0                         (9,400)
                                                       ---------         --------                      ---------
Net interest income after provision
   for possible loan losses.......................       150,828            9,217                        160,045
Non-interest income...............................        33,205            1,793                         34,998
Non-interest expense..............................       119,481            7,404                        126,885
Income before income taxes........................        64,552            3,606                         68,158
Income taxes......................................        20,203            1,213                         21,416
                                                       ---------         --------                      ---------
Net income........................................     $  44,349         $  2,393                      $  46,742
                                                       =========         ========                      =========


Weighted average shares outstanding:
  Primary.........................................    16,971,801        1,261,538                     18,233,339
  Fully diluted...................................    17,049,308        1,261,538                     18,310,846

Earnings per share:
  Primary.........................................         $2.61            $1.90                          $2.56
  Fully diluted...................................         $2.60            $1.90                          $2.55

</TABLE>
                             See accompanying notes.

                                       19

<PAGE>



                           WHITNEY HOLDING CORPORATION

                  PRO FORMA CONDENSED COMBINED INCOME STATEMENT
                                   (Unaudited)

                          Year Ended December 31, 1994
                      (In Thousands, except for share data)

<TABLE>
<C>                                                  <C>               <C>                <C>           <C>
                                                        Whitney              FNB           Pro Forma    Pro Forma
                                                     (Consolidated)    (Consolidated)     Adjustments    Combined
                                                     --------------    --------------     -----------   ----------

Interest income...................................     $ 192,750         $ 13,257                      $ 206,007
Interest expense..................................        57,503            4,773                         62,276
                                                       ---------         --------                      ---------
Net interest income...............................       135,247            8,484                        143,731
Provision for (reduction in) reserves for possible
  loan losses.....................................       (26,004)            (500)                       (26,504)
                                                       ---------         --------                      ---------
Net interest income after provision
   for possible loan losses.......................       161,251            8,984                        170,235
Non-interest income...............................        34,175              676                         34,851
Non-interest expense..............................       112,394            7,759                        120,153
Income before income taxes........................        83,032            1,901                         84,933
Income tax expense (benefit)......................        26,834           (3,979)                        22,855
                                                       ---------         --------                      ---------
Net income........................................     $  56,198         $  5,880                      $  62,078
                                                       =========         ========                      =========

Weighted average shares outstanding:
  Primary.........................................    16,588,783        1,261,538                     17,850,321
  Fully diluted...................................    16,588,783        1,261,538                     17,850,321

Earnings per share:
  Primary.........................................         $3.39            $4.66                          $3.48
  Fully diluted...................................         $3.39            $4.66                          $3.48

</TABLE>
                             See accompanying notes.

                                       20

<PAGE>


                           WHITNEY HOLDING CORPORATION

                  PRO FORMA CONDENSED COMBINED INCOME STATEMENT
                                   (Unaudited)

                          Year Ended December 31, 1993
                      (In Thousands, except for share data)

<TABLE>
<C>                                                 <C>               <C>               <C>            <C>
                                                       Whitney              FNB         Pro Forma       Pro Forma
                                                    (Consolidated)    (Consolidated)    Adjustments     Combined
                                                    --------------    --------------    -----------    ---------
Interest income...................................     $ 186,105         $ 12,322                      $ 198,427
Interest expense..................................        54,681            4,785                         59,466
                                                       ---------         --------                      ---------
Net interest income...............................       131,424            7,537                        138,961
Provision for (reduction in) reserves for possible
  loan losses.....................................       (59,625)              51                        (59,574)
                                                       ---------         --------                      ---------
Net interest income after provision
   for possible loan losses.......................       191,049            7,486                        198,535
Non-interest income...............................        33,216            1,563                         34,779
Non-interest expense..............................       108,237            7,512                        115,749
Income before income taxes and cumulative
  effect of changes in accounting principles......       116,028            1,537                        117,565
Income tax expense (benefit)......................        37,145             (241)                        36,904
                                                       ---------         --------                      ---------
Income before cumulative effect of changes
  in accounting principles........................        78,883            1,778                         80,661
Cumulative effect of changes in accounting
  principles......................................           345              340                            685
                                                       ---------         --------                      ---------
Net income........................................     $  79,228         $  2,118                      $  81,346
                                                       =========         ========                      =========

Weighted average shares outstanding:
  Primary.........................................    16,456,782        1,261,538                     17,718,320
  Fully diluted...................................    16,456,782        1,261,538                     17,718,320

Earnings per share:
  Primary.........................................         $4.81            $1.68                          $4.59
  Fully diluted...................................         $4.81            $1.68                          $4.59

</TABLE>

                             See accompanying notes.

                                       21

<PAGE>



                           WHITNEY HOLDING CORPORATION

           NOTES TO PRO FORMA CONDENSED COMBINED FINANCIAL STATEMENTS
                                   (Unaudited)


         To calculate pro forma information, it has been assumed that the number
of outstanding  shares of Whitney Common Stock includes shares to be issued upon
consummation  of the Company  Merger.  In  connection  with the Company  Merger,
Whitney will issue shares of Whitney Common Stock to the shareholders of FNB.

         Under the  terms of the Plan of  Merger,  Whitney  will  issue  Whitney
Common  Stock  with an  aggregate  value at the date of the  Company  Merger  of
approximately  $41,000,000  (calculated based on the Average Market Price).  The
number of shares of Whitney  Common Stock to be exchanged in the Company  Merger
will be determined by the Average  Market Price of Whitney  Common Stock,  which
will be no less  than  $28.50  per share nor more than  $36.50  per  share.  For
purposes of the accompanying pro forma financial statements,  the Whitney Common
Stock is assumed to have an Average Market Price in the Company Merger of $32.50
per share, resulting in the issuance of 1,261,538 shares of Whitney Common Stock
for all the common stock of FNB (an exchange ratio of 0.6253).

         The  historical   earnings  per  share  and  weighted   average  shares
outstanding  amounts  for FNB reflect the  equivalent  shares of Whitney  Common
Stock  expected to be  exchanged  in  connection  with the  Mergers  based on an
assumed Average Market Price of $32.50 per share of Whitney Common Stock.

         There is no stated par value of Whitney  Common  Stock.  In  accordance
with the pooling-of-interests  method of accounting,  the historical equities of
the merged companies are combined.





                                       22

<PAGE>



                              INFORMATION ABOUT FNB

Description of Business

         FNB is a Louisiana  corporation  and a registered  bank holding company
under the Bank Holding Company Act of 1956 (the "BHCA"). FNB was incorporated in
1974  and  acquired  all of the  stock  of  FNBH  in  July  1982  pursuant  to a
reorganization in which the shareholders of FNBH became  shareholders of FNB and
FNBH became FNB's wholly-owned subsidiary.  At September 30, 1996, FNB had total
consolidated  assets of  approximately  $218.6  million  and total  consolidated
deposits of approximately  $192.4 million.  FNB's principal  executive office is
located at 7910 Main Street, Houma, Louisiana 70360, and its telephone number is
(504) 868-1660.

         Additional  information  with  respect to FNB is included in  documents
incorporated by reference in this Proxy Statement-Prospectus.  Copies of certain
of such documents, consisting of FNB's Annual Report on Form 10-K for the fiscal
year ended December 31, 1995, and Quarterly  Report on Form 10-Q for the quarter
ended September 30, 1996, accompany this Proxy Statement-Prospectus.

Price Range of FNB Common Stock and Quarterly Dividends

         Since April 19, 1995,  the FNB Common Stock has been traded on the AMEX
under the symbol FNH. The  following  table sets forth the high and low reported
closing  sale prices per share of FNB Common  Stock as reported on the AMEX (for
the second quarter of 1995 and subsequent  periods) and the quarterly  dividends
declared for the periods  indicated.  Prices  indicated for the FNB Common Stock
through  the first  quarter of 1995 are based upon  actual  transactions  in FNB
Common Stock of which FNB's  management  is aware;  however,  during that period
there were only a limited number of transactions,  all of which involved limited
numbers  of shares,  and no  assurance  can be given  that the prices  indicated
represent actual market values.

                                  High                 Low              Dividend
1994
  First Quarter................  $3.37               $3.25               $   -
  Second Quarter...............   4.37                3.75                   -
  Third Quarter................   4.50                4.00                   -
  Fourth Quarter...............   4.50                4.13                 .10

1995
  First Quarter................  $5.00               $4.50               $   -
  Second Quarter...............   9.50                7.00                 .05
  Third Quarter................  13.875               9.0625               .05
  Fourth Quarter...............  16.75               14.00                 .06


1996
  First Quarter ............... $14.875             $13.75               $ .07
  Second Quarter...............  13.875              13.00                 .07
  Third Quarter................  19.50               13.75                 .07
   Fourth Quarter..............  20.25               15.75               .07    





                                       23

<PAGE>



                            INFORMATION ABOUT WHITNEY

General

         Whitney,  a Louisiana  corporation,  is a  multi-bank  holding  company
registered  pursuant  to the BHCA.  It 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 the City of New Orleans  continuously  since
1883.  Whitney  Bank  currently  offers  banking and trust  services  through 61
branches  located in south  Louisiana,  including  branches in the  metropolitan
areas of New Orleans  (including  suburban  Jefferson and St. Tammany Parishes),
Baton Rouge,  Lafayette and Morgan City, and a foreign branch on Grand Cayman in
the British West Indies. In December 1994, Whitney  established the Whitney Bank
of Alabama,  and through this new, Alabama  state-chartered  banking subsidiary,
became the first  Louisiana  bank  holding  company to enter the Alabama  market
through its acquisition of the Mobile area operations of The Peoples Bank, Elba,
Alabama on February 17,  1995.  Whitney  Bank of Alabama  currently  operates 10
branches  and  one  loan  production  office  serving  metropolitan  Mobile  and
Montgomery, Alabama and the Alabama Gulf Coast region.

         On October 25, 1996,  Whitney  acquired  Liberty Bank and American Bank
and Trust,  both of Pensacola,  Florida,  through mergers of those  institutions
into Whitney National Bank of Florida ("Whitney  Bank-Florida"),  a wholly-owned
subsidiary of Whitney  formed for that purpose.  Whitney  Bank-Florida  operates
five branches serving Pensacola, Florida and surrounding areas.

         Whitney  Bank,  Whitney  Bank  of  Alabama  and  Whitney   Bank-Florida
(Whitney's  banking  subsidiaries) are full-service  commercial banks 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-income  areas by  providing  housing,  services or jobs for
residents,  or promoting small  businesses that service  low-income  areas.  The
initial capitalization of WCDC was $1,000,000.

         At  September  30,  1996,  Whitney  had  consolidated  total  assets of
approximately  $3.5 billion,  consolidated  total deposits of approximately $2.7
billion and consolidated  shareholders'  equity of  approximately  $384 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 November 14, 1996
with Merchants Bancshares,  Inc. ("Merchants") and its majority-owned subsidiary
Merchants Bank & Trust Co. ("Merchants Bank"), pursuant to which Merchants would
merge with and into Whitney,  and Whitney  would acquire all of the  outstanding
shares of Merchants Bank through either a merger with a subsidiary of Whitney or
a share exchange with Whitney (the "Merchants Acquisition"). Merchants Bank is a
Mississippi  state-chartered bank headquartered in Gulfport,  Mississippi,  with
approximately  $207  million in assets and 13 branches  serving the  Mississippi
Gulf Coast.

         Under the terms of the Merchants  agreement,  shareholders of Merchants
and the minority shareholders of Merchants Bank would receive, in the aggregate,
shares of Whitney  Common Stock having a value of  approximately  $51.8  million
(plus the amount of  Merchants'  retained  net income  after tax from October 1,
1996 through the month preceding the closing of that  transaction),  based on an
assumed  average  market price of Whitney Common Stock between $30.00 and $36.00
per share. As in the Company  Merger,  the actual value on the effective date of
the Merchants  Acquisition  of the shares of Whitney Common Stock to be received
by Merchants  shareholders  may be more or less than the amount  described above
inasmuch as such consideration will be determined in reference to a defined


                                       24

<PAGE>



"average  market price" of Whitney  Common Stock that can be no less than $30.00
or more than $36.00. The Merchants  Acquisition is expected to be consummated in
the first  quarter  of 1997,  but is subject to  regulatory  approval  and other
customary  conditions.  There can be no assurance that the Merchants 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 the Texas-Louisiana  border 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.

Market Prices of and Dividends Declared on Whitney Common Stock

         Whitney  Common Stock is included for quotation in the NASDAQ  National
Market System 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 System and the
quarterly dividends declared for each such period.

               Price Range of Common Stock and Quarterly Dividends

                                   High               Low              Dividend*
1994
  First Quarter................   $24               $21 1/2                $0.14
  Second Quarter...............    27 1/4            21 3/4                 0.14
  Third Quarter................    28 1/2            25 3/4                 0.15
  Fourth Quarter...............    27                21                     0.17

1995

  First Quarter................   $25 3/4           $22                    $0.18
  Second Quarter...............    27 3/8            24                     0.19
  Third Quarter................    34                26 3/4                 0.19
  Fourth Quarter...............    31 1/2            29 3/4                 0.21


1996
  First Quarter ...............   $31 3/4           $29 3/4                $0.22
  Second Quarter...............    31 3/4            29 3/4                 0.25
  Third Quarter................    30 7/8            29 1/2                 0.25
   Fourth Quarter...........    35 7/8            31 3/4                0.25    


- ----------------------
*  Dividends per share for 1994 and 1995 have been restated to reflect the 
   Citizens Acquisition.  See "Summary - Selected Financial Data of Whitney."

                       COMPARATIVE RIGHTS OF SHAREHOLDERS

         If the  shareholders  of FNB approve the Plan of Merger and the Company
Merger  is  subsequently  consummated,  all  shareholders  of  FNB  will  become
shareholders of Whitney,  and their rights will be governed by and be subject to
the Articles of Incorporation  and Bylaws of Whitney rather than the Articles of
Incorporation  and Bylaws of FNB. 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 FNB not described elsewhere herein.



                                       25

<PAGE>


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  17,957,051 were outstanding on December
31, 1996. The following  description of Whitney's  capital stock is qualified in
its entirety by reference to Whitney's  Articles of Incorporation and Bylaws and
to the applicable provisions of 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,  as
nearly equal in number as possible, with members of each class to serve for five
years,  and with 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 appeal.

         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 Bylaws authorize Whitney to maintain
insurance covering the actions of its officers, directors, employees and agents,
and its Bylaws 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).


                                       26

<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
(as defined below) 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.
                                       27
<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.

         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
                                       28
<PAGE>
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,  1996,  directors  and
executive  officers of Whitney  beneficially owned  approximately  1,378,850
shares (approximately 7.7%) 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 Bylaws

         Whitney's  Bylaws 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.


                                       29

<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 FNB Common Stock

         The  following  comparison  of the rights of holders of Whitney  Common
Stock and FNB Common Stock is based on current terms of the governing  documents
of the  respective  companies  and on the current  provisions  of the LBCL.  The
rights of holders of FNB 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;  and (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.  In addition, both the Whitney Common
Stock and the FNB Common  Stock are  governed by  applicable  provisions  of the
LBCL.  Although  it is  impracticable  to note all the  differences  between the
applicable  governing documents of Whitney and FNB, 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 FNB 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 25  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 Articles of Incorporation of FNB do not provide for classes of
directors,  and the  directors  of FNB each serve  one-year  terms.  FNB's board
consists of not less than three nor more than 25 members.  The directors of both
Whitney and FNB must also be shareholders.

         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.

         FNB's  Articles  of  Incorporation  and Bylaws do not contain a similar
provision and, under the LBCL, FNB's directors may be removed by the affirmative
vote of a  majority  of the total  voting  power of FNB at a special  meeting of
shareholders called for that purpose.

         Preferred Stock.  The Board of Directors of FNB is authorized,  without
action of its  shareholders,  to issue FNB preferred  stock (the "FNB  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 FNB Preferred Stock.
Shares  of FNB  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 FNB 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
                                       30
<PAGE>
the  holders  of  a  majority  of  the  FNB  Common  Stock.  FNB's  Articles  of
Incorporation authorize the issuance of 2,000,000 shares of FNB 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.  FNB's bylaws provide
that 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-third of the total
voting power.

         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.

         FNB's  Articles  of  Incorporation  do not contain  supermajority  vote
requirements for business combinations,  and FNB, therefore, is governed in this
regard  solely by the LBCL.  Under the  LBCL,  certain  "business  combinations"
require  supermajority  votes if they involve an  "interested  shareholder."  An
"interested  shareholder" is defined in the LBCL as any person that,  subject to
certain exceptions,  is either the beneficial owner of 10% or more of the voting
power of the outstanding  voting stock of the corporation or an affiliate of the
corporation who, at any time within the two-year period immediately prior to the
date in question, was the beneficial owner of 10% more of such voting power. The
supermajority  vote  required by the LBCL is a vote of both (a) 80% of the votes
entitled to be cast by  outstanding  shares of voting  stock of the  corporation
voting  together  as a single  voting  group  and (b)  two-thirds  of the  votes
entitled  to be cast by holders of stock  other  than  voting  stock held by the
"interested  shareholder"  who is or whose affiliate is a party to the "business
combination"  or an  affiliate or  associate  of the  "interested  shareholder,"
voting together as a single group. In addition,  the "business combination" must
be recommended by the board of directors of the corporation. See " - Description
of Whitney Common Stock -- Supermajority  and Fair Price Provisions --- Purposes
and  Effect of  Supermajority  and Fair  Price  Provisions"  and " --  Louisiana
Control Share Acquisition Statute," above.

         Reversion.  FNB's  Articles  of  Incorporation  provide  that all cash,
property  or  share   dividends,   shares   issuable  in  connection   with  the
reclassification  of stock, and the redemption  price of redeemed shares,  which
are not claimed by the shareholders  entitled thereto within 18 months after the
dividend or redemption  price become  payable,  or the shares  become  issuable,
despite  reasonable efforts by the corporation to pay the dividend or redemption
price, or deliver the  certificates for the shares to such  shareholders  within
such time,  shall revert in full  ownership to FNB, and FNB's  obligation to pay
such dividend or redemption  price or issue such shares shall  thereupon  cease;
provided,  however,  the  Board  of  Directors  may,  but  is not  required  to,
thereafter  pay such  dividends or redemption  price or issue such shares to the
person entitled thereto.

         Whitney's Articles of Incorporation do not contain a similar provision.

         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
                                       31
<PAGE>
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.

         FNB's Articles of Incorporation  provide mandatory  indemnification  to
its directors and officers for similar claims,  except only as may be prohibited
by law.  There is no  requirement  in such  Articles of  Incorporation  that the
director  or officer  have met a certain  standard  of  conduct,  and no express
rights to indemnification for employees or agents of FNB.

                                  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  Company  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.

                                     EXPERTS

         The  consolidated  financial  statements of FNB and its subsidiaries at
December 31, 1995 and 1994,  and for each of the three years in the period ended
December 31, 1995, incorporated in this Proxy  Statement-Prospectus by reference
from FNB's Annual Report on Form 10-K for the year ended December 31, 1995, have
been audited by Deloitte & Touche LLP, independent  auditors, as stated in their
report, which is incorporated herein by reference, and have been so incorporated
in reliance  upon the report of such firm given upon their  authority as experts
in accounting and auditing.

         The consolidated  financial  statements of Whitney and its subsidiaries
as of  December  31, 1995 and 1994 and for each of the three years in the period
ended   December   31,   1995   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.

                              SHAREHOLDER PROPOSALS

         If the Company Merger is not consummated,  shareholder proposals of FNB
shareholders intended to be presented at the next annual meeting of shareholders
of FNB must be received by FNB at its principal  executive  offices a reasonable
time before the date of FNB's proxy statement  released to its  shareholders for
that  meeting for  consideration  by FNB for  possible  inclusion  in such proxy
materials.

                                  OTHER MATTERS

         At the time of the preparation of this Proxy Statement-Prospectus,  FNB
had not been  informed of any matters to be  presented by or on behalf of FNB 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.



                                       32

<PAGE>


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

                                  BY ORDER OF THE BOARD OF DIRECTORS OF FNB



                                  Sharon T. Roppolo
                                  Secretary
   January 17, 1997    




                                       33

<PAGE>

                                   APPENDIX A
                          Agreement and Plan of Merger


<PAGE>

                          AGREEMENT AND PLAN OF MERGER


         THIS  AGREEMENT  AND PLAN OF MERGER  ("Agreement")  is made October 11,
1996, between Whitney Holding Corporation  ("Whitney"),  a Louisiana corporation
and Whitney National Bank ("Whitney's Bank"), a national banking association, on
the one hand,  and First  National  Bankshares,  Inc.  ("Holding"),  a Louisiana
corporation,  and First  National  Bank of Houma  ("Bank"),  a national  banking
association,  on the  other  hand.  Whitney  and  Holding  shall be  hereinafter
collectively referred to as the "Constituent Corporations".

                                    Preamble


         WHEREAS, the boards of directors of Whitney and Holding have determined
that it is desirable and in the best interests of their respective  corporations
and  shareholders  that Holding merge into Whitney (the "Company  Merger").  The
boards of directors of Whitney's Bank and Bank have each  determined  that it is
desirable  and in the  best  interests  of each  such  institution  and its sole
shareholder that Bank merge into Whitney's Bank (the "Bank Merger"). The Company
Merger and the Bank Merger shall be hereinafter  collectively referred to as the
"Mergers"; and

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

         Section 1.        The Mergers and Closing

         1.01.    Mergers.

                  (a) Promptly after execution of this Agreement,  the Boards of
Directors  of Whitney and Holding  will  execute  the merger  agreement  annexed
hereto as Exhibit 1.01(a) (the "Company Merger  Agreement"),  pursuant to which,
on the terms set forth herein and subject to the conditions set forth in Section
6 hereof, Holding will merge with and into Whitney, which shall be the surviving
corporation.

                  (b) Promptly after execution of this Agreement,  the Boards of
Directors of Whitney's Bank and Bank will execute the merger  agreement  annexed
hereto as Exhibit 1.01(b) (the "Bank Merger  Agreement"),  pursuant to which, on
the terms set forth herein and subject to the  conditions set forth in Section 6
hereof,  Bank  will  merge  with and into  Whitney's  Bank,  which  shall be the
surviving bank. The Company Merger Agreement and the Bank Merger Agreement shall
be hereinafter collectively referred to as the "Merger Agreements".

                  (c) Effects of  Mergers.  The  Company  Merger  shall have the
effects set forth in the Louisiana  Business  Corporation Law ("LBCL").  Without
limiting the generality of the foregoing,  and subject thereto, at the Effective
Time, all the property and assets, rights, privileges and all debts, liabilities
and  obligations  of  Holding  will  become the  property  and  assets,  rights,
privileges and debts,  liabilities  and  obligations of Whitney as the surviving
corporation  in the Company  Merger.  The Bank Merger shall have the effects set
forth in the National  Banking  Laws.  Without  limiting the  generality  of the
foregoing,  and subject thereto,  at the effective time of the Bank 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  Whitney's  Bank  as  the  surviving
association in the Bank 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,
Second  Floor,  New Orleans,  Louisiana  70130 (or such other place to which the
parties may agree),  at 10:00 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 subsection 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

                                       A-1

<PAGE>

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 and  opinions  required by
Section 6 shall be delivered,  (c) the appropriate officers of the parties shall
execute, deliver and acknowledge the Merger Agreements and (d) the parties shall
take  such  further  action  as  is  required  to  consummate  the  transactions
contemplated  by this Agreement and the Merger  Agreements;  provided,  however,
that  Whitney  may,  in  its  sole  discretion,   delay   execution,   delivery,
acknowledgment  and filing of the Bank Merger  Agreement and the consummation of
the Bank Merger until such time as it deems  appropriate,  but in no event later
than one year  following  the  approval  of the Bank Merger by the Office of the
Comptroller  of the  Currency.  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 subsection  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 Company Merger Agreement shall be filed with
and  recorded by the  Secretary  of State of  Louisiana,  and subject to Section
1.02,  the Bank Merger  Agreement  will be filed and recorded with the Office of
the  Comptroller  of the  Currency,  and the Company  Merger and the Bank Merger
shall  be  effective  at the  date  and time  specified  in the  Company  Merger
Agreement and the Bank Merger Agreement, respectively. The date on which and the
time at which the Company Merger becomes effective are herein referred to as the
"Effective Date" and the "Effective Time," respectively.

         1.04.    Surviving Corporations.

                  (a) Company Merger.  The Articles of Incorporation  and bylaws
of Whitney,  as in effect  immediately prior to the Effective Time, shall remain
unchanged  by  reason  of the  Company  Merger  and  shall  be the  Articles  of
Incorporation and bylaws of Whitney as the surviving  corporation in the Company
Merger. The directors and officers of Whitney at the Effective Time shall be the
directors  and officers of Whitney as the surviving  corporation  in the Company
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 Whitney Common Stock, no par value ("Whitney Common Stock"), issued and
outstanding  immediately  prior to the  Effective  Time shall remain  issued and
outstanding from and after the Effective Time. At the Effective Time, the shares
of Holding Common Stock shall be converted as set forth in Section 2.

                  (b) Bank  Merger.  The Articles of  Association  and Bylaws of
Whitney's Bank, as in effect immediately prior to the effective time of the Bank
Merger  shall  remain  unchanged  by reason of the Bank  Merger and shall be the
Articles of Association and Bylaws of Whitney's Bank as the surviving  entity in
the Bank Merger.  The directors and officers of Whitney's  Bank at the effective
time of the Bank Merger shall be the directors and officers of Whitney's Bank as
the  surviving  corporation  in the  Bank  Merger  until  the  earlier  of their
resignation or removal or until their respective successors are duly elected and
qualified,  as the case may be. At the effective  time of the Bank Merger and by
virtue  thereof,  (i) all shares of capital  stock of Bank,  other than any such
shares as to which dissenters'  rights shall exist,  shall be cancelled and (ii)
the shares of capital  stock of Whitney's  Bank as the  surviving  entity in the
Bank Merger,  issued and  outstanding  immediately  prior to such effective time
shall continue to be issued and outstanding,  and no additional  shares shall be
issued as a result of the Bank Merger.

         1.05. Tax Consequences.  It is the intention of the parties hereto that
the Mergers  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.


                                       A-2

<PAGE>

         Section 2.        Conversion of Stock in the Company Merger

         2.01.  Conversion.  Subject to the provisions of this Section 2, at the
Effective  Time,  by virtue of the Company  Merger and without any action on the
part of the holders thereof, the shares of Holding common stock, par value $2.50
per share ("Holding Common Stock") shall be converted as follows:

                  (a) Exchange Ratio.  Except for shares of Holding Common Stock
held by Holding as treasury  shares (which shall by reason of the Company Merger
be  cancelled),  and subject to the  provisions of Section  2.01(b)  relating to
fractional  shares,  each issued and  outstanding  share of Holding Common Stock
shall be converted into and become that number of shares of Whitney Common Stock
that is equal to the quotient (the  "Exchange  Ratio")  obtained by dividing the
Maximum  Deliverable  Amount (as  hereinafter  defined)  by the total  number of
issued and outstanding  shares (not treasury  shares) of Holding Common Stock at
the Effective Time.

                             (i)  Maximum Deliverable Amount. The term "Maximum
Deliverable Amount" means the quotient obtained by dividing $41,000,000 by the
Average Market Price (as defined below).

                            (ii)  Average Market Price. The "Average 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  Time,  as  reported  in
the  Wall  Street  Journal (corrected for typographical errors); provided,
however, that if the Average Market Price as calculated above is less than
$28.50,  the Average Market Price for purposes of this  Section 2.01(a) shall be
$28.50,  and if the  Average  Market  Price as calculated  above is greater than
$36.50,  the Average Market Price for purposes of this Section 2.01(a) shall be
$36.50.

                  (b) Fractional  Shares.  In lieu of the issuance of fractional
shares of Whitney Common Stock,  each shareholder of Holding,  upon surrender of
his or her certificate that immediately  prior to the Effective Time represented
Holding Common Stock,  other than shares of Holding Common Stock held by Holding
as treasury  shares (which shall by reason of the Company  Merger be cancelled),
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 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 Holding  Common  Stock,  other than shares of Holding  Common
Stock held by Holding as treasury  shares  (which shall by reason of the Company
Merger be cancelled),  upon surrender  thereof to the exchange agent selected by
Whitney  (the  "Exchange  Agent"),   together  with  duly  executed  transmittal
materials  provided pursuant to Section 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 of whole  shares of Whitney  Common Stock
into which such holder's shares of Holding Common Stock were converted. Until so
surrendered,  each outstanding Holding 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
Holding  Common  Stock shall have been  converted.  Whitney  may, at its option,
refuse to pay any  dividend or other  distribution  to holders of  unsurrendered
Holding stock certificates until surrendered;  provided,  however, that upon the
surrender and exchange of any Holding 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 Holding Common Stock theretofore represented

                                       A-3

<PAGE>

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
Holding  Common  Stock and shall be  enforceable  by such  holders and each such
holder's heirs, representatives and successors.

                  (d) Deposit.  Promptly  following 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 Holding 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
Holding  at the  Effective  Time  transmittal  materials  for use in  exchanging
certificates of Holding Common Stock for certificates of Whitney Common Stock.

         2.02. Closing Transfer Books. At the Effective Time, the stock transfer
books of Holding  shall be closed and no  transfer  of shares of Holding  Common
Stock shall be made  thereafter.  At the effective time of the Bank Merger,  the
stock  transfer  books of Bank shall be closed and no transfer of shares of Bank
Common Stock (as hereinafter  defined in Section 3.02) 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 Holding
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 Holding
Common Stock theretofore represented by such certificates.

         Section 3.        Representations and Warranties of Holding

         Holding and Bank  represent and warrant to Whitney and  Whitney's  Bank
that, as of the date of this Agreement and as of the Closing Date, except as set
forth in the Schedule of Exceptions:

         3.01.  Consolidated  Group;  Organization;   Qualification.  "Holding's
consolidated group," as such term is used in this Agreement, consists of Holding
and Bank. Holding is a corporation duly organized,  validly existing and in good
standing 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  (the
"Bank  Holding  Company  Act").  Bank is a national  banking  association,  duly
organized,  validly  existing and in good standing  under the laws of the United
States and is  domiciled  in the State of  Louisiana.  Each member of  Holding's
consolidated  group 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 Agreements to which it is
a party and to consummate the transactions contemplated hereby, 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 such  member's
financial condition, results of operations or business.

         3.02. Capital Stock; Other Interests.  The authorized capital stock (i)
of Holding  consists of  10,000,000  shares of Holding  Common  Stock,  of which
2,017,600  shares  are  issued  and  outstanding  and no shares  are held in its
treasury,  and 2,000,000 shares of Preferred Stock,  without par value, of which
no shares are  issued  and  outstanding;  and (ii) of Bank  consists  of 572,290
shares of common  stock,  $2.50 par value per share ("Bank  Common  Stock"),  of
which 562,906  shares are issued and  outstanding  and no shares are held in its
treasury.  All issued and outstanding  shares of capital stock of each member of
Holding's  consolidated  group have been duly authorized and are validly issued,
fully paid and (except as provided in 12 U.S.C. Section 55) non-assessable,  and
all of the  outstanding  shares of Bank are owned by Holding,  free and clear of
all  liens,   charges,   security  interests,   mortgages,   pledges  and  other
encumbrances.  No member of Holding's  consolidated  group has  outstanding  any
stock  options or other rights to acquire any shares of its capital stock or any
security  convertible  into such shares,  or has any obligation or commitment to
issue,  sell or deliver any of the foregoing or any shares of its capital stock.
There are no agreements  among Holding and  Holding's  shareholders  or by which
Holding is bound with respect to the voting or transfer of Holding  Common Stock
or granting  registration rights to any holder thereof.  The outstanding capital
stock  of each  member  of  Holding's  consolidated  group  has been  issued  in
compliance with all legal  requirements and in compliance with any preemptive or
similar rights. No member of Holding's consolidated group has a subsidiary

                                       A-4
<PAGE>

(other than Bank) or direct or indirect  ownership  interest exceeding 5% in any
firm, corporation, partnership or other entity.

         3.03. Corporate Authorization; No Conflicts. Subject to the approval of
this  Agreement  and the Merger  Agreements by the  shareholders  of Holding and
Bank, respectively,  in accordance with the LBCL and applicable federal law, all
corporate  acts and other  proceedings  required  of each  member  of  Holding's
consolidated group for the due and valid authorization,  execution, delivery and
performance of this Agreement and the Merger  Agreements and consummation of the
Mergers have been validly taken.  Subject to their approval by the  shareholders
of Holding and Bank and to such  regulatory  approvals  as are  required by law,
this  Agreement  and  the  Merger  Agreements  are  legal,   valid  and  binding
obligations of Holding and Bank and are  enforceable  against  Holding and Bank,
respectively, in accordance with the respective terms hereof and thereof, except
that  enforcement may be limited by bankruptcy,  reorganization,  insolvency and
other similar laws and court decisions  relating to or affecting the enforcement
of creditors' rights generally and by general equitable principles. With respect
to each member of Holding's consolidated group, neither the execution,  delivery
or performance of this Agreement or the Merger Agreements,  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
or by-laws 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.

         3.04. Financial Statements,  Reports and Proxy Statements.  Holding has
delivered to Whitney true and complete  copies of (a) the  consolidated  balance
sheets  as of  December  31,  1994 and  December  31,  1995 of  Holding  and its
consolidated  subsidiaries,  the  related  consolidated  statements  of  income,
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 Holding's  Annual Report on Form 10-K for the
fiscal year ended  December  31,  1995 filed with the  Securities  and  Exchange
Commission  ("SEC") under the  Securities  Exchange Act of 1934, as amended (the
"Exchange Act"), (collectively,  the "Financial Statements"),  (b) the unaudited
consolidated balance sheets as of June 30, 1996 and June 30, 1995 of Holding and
its consolidated  subsidiaries,  and the related unaudited statements of income,
shareholders'  equity and cash flows for the  six-month  periods then ended,  as
presented in Holding's  Quarterly  Reports on Form 10-Q filed with the SEC under
the Exchange Act  (collectively,  the "Interim Financial  Statements"),  (c) the
annual report to the Board of Governors of the Federal Reserve System  ("Federal
Reserve  Board")  for the year  ended  December  31,  1995,  of each  member  of
Holding's  consolidated  group  required  to file  such  reports,  (d) all  call
reports, including all amendments thereto, made to the Office of the Comptroller
of the Currency  ("OCC")  since  December 31, 1992,  of each member of Holding's
consolidated group required to file such reports, (e) Holding's Annual Report to
Shareholders for 1995 and all subsequent Quarterly Reports to Shareholders,  (f)
all  registration  statements and reports filed since December 31, 1992 pursuant
to the Securities Act of 1933, as amended (the "Securities Act") and pursuant to
Section  13  or  15(d)  of  the  Exchange  Act,  of  each  member  of  Holding's
consolidated  group required to file such reports,  and (g) all Proxy Statements
disseminated  to  Holding's  shareholders  or  the  shareholders  of  any of its
subsidiaries at any time since December 31, 1992.

                  The Financial Statements and, except as indicated in the notes
thereto or, as permitted by Form 10-Q and the rules and  regulations of the SEC,
the  Interim  Financial  Statements,  have  been (and all  financial  statements
delivered  to  Whitney  as  required  by this  Agreement  will be)  prepared  in
conformity with generally accepted  accounting  principles ("GAAP") applied on a
basis consistent with prior periods, and present fairly, in conformity with GAAP
the consolidated  results of operations of Holding'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 referred to above 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  Interim  Financial
Statements (the "Latest  Balance  Sheet"),  no member of Holding's  consolidated
group had, nor are any of any such member's assets subject

                                       A-5
<PAGE>
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,  including  any report filed with the Federal  Reserve  Board,  or other
report,  proxy  statement  or  registration  statement  filed by any  member  of
Holding's  consolidated  group with the SEC since January 1, 1993, and no report
made to  shareholders  of Holding since  January 1, 1993,  as of the  respective
dates thereof,  contained,  and 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 omitted,  or
will 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.  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 a member of Holding's  consolidated  group 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 its consolidated  group, (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 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 each member of Holding's  consolidated group as of such
date, have been delivered to Whitney.  Except as specifically  noted on the loan
schedule  attached  to the  Schedule  of  Exceptions,  no  member  of  Holding's
consolidated  group is 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 any member of  Holding's  consolidated  group 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 any member of Holding's consolidated group, the OCC
or the FDIC,  (iv) an  obligation  of any  director,  executive  officer  or 10%
shareholder  of any  member of  Holding's  consolidated  group who is subject to
Regulation O of the Federal  Reserve Board (12 C.F.R.  Part 215), 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 the Executive Committee of the 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  Holding's  consolidated  group 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 the Executive  Committee of the Bank which are likely to
require in accordance  with  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.  Absence  of Certain  Changes  or  Events.  Since the date of the
Latest  Balance Sheet,  Holding has not declared,  set aside for payment or paid
any dividend to holders of, or declared or made any  distribution on, any shares
of Holding's  capital stock except  regular  quarterly  dividends  from the date
hereof  until the Closing  Date in amounts not to exceed $.07 per share  payable
quarterly (in the case of dividends declared in 1996) and $.08 per share payable
quarterly  (in the  case of  dividends  declared  in  1997);  provided  that the
increase in dividend from $.07 to $.08 per share is conditioned on such increase
not disqualifying the Mergers as "pooling of interests" for accounting  purposes
or as a  "reorganization"  within the  meaning  of  Section  368(a) of the Code.
Whitney and Holding  shall  cooperate in selecting  the record date of Holding'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 Holding Common Stock do
not receive both a dividend in respect of their  shares of Holding  Common Stock
and Whitney Common Stock or fail to receive any

                                       A-6
<PAGE>

dividend,  and  Whitney and  Holding  will use their best  efforts to select the
Closing Date such that holders of Holding  Common Stock qualify for the dividend
in respect to the Whitney  Common Stock  (rather than the dividend in respect to
the Holding 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 on the financial
condition,  results of operations or business of Holding's  consolidated  group,
taken as a whole.  Except as may result from the  transactions  contemplated  by
this Agreement, no such member has, since the date of the Latest Balance Sheet:

                  (a) borrowed  any money or entered into any capital  lease 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  of 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 that one or more substantial customers has
terminated or intends to terminate such  customers'  relationship  with it, with
the result being a material adverse effect on Bank;

                  (f) failed to operate  its  business  in the  ordinary  course
consistent with past practices,  or failed to use reasonable efforts 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 except for losses  adequately
reserved  against on the date of this  Agreement or on the Latest  Balance Sheet
and expenses  associated with this transaction,  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 material debt owed to it, or cancelled 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;

                  (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 10%
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

                                       A-7

<PAGE>
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.

         3.08.  Taxes.  Each member of Holding's  consolidated  group has timely
filed all federal, state and local income, franchise,  excise, real and personal
property,  employment and other tax returns, tax information returns and reports
required  to be  filed,  has paid all  material  taxes,  interest  payments  and
penalties  as  reflected  therein  which  have  become  due,  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 is not delinquent in the payment of any material tax or material
governmental  charge of any nature. The consolidated  federal income tax returns
of Holding's  consolidated  group have not been audited by the Internal  Revenue
Service  since  the date of  Holding's  inception.  No audit or  examination  is
presently  being  conducted  by any  taxing  authority  nor  has any  member  of
Holding's  consolidated  group  received  written  notice  from any such  taxing
authority of its intention to conduct any  investigation or audit or to commence
any  such  proceeding;   no  material  unpaid  tax  deficiencies  or  additional
liabilities  of  any  sort  have  been  proposed  to  any  member  of  Holding's
consolidated  group 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 any  member of  Holding's  consolidated  group.  Each such  member has
withheld from its  employees  (and timely paid to the  appropriate  governmental
entity) proper and accurate amounts for all periods in material  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).

         3.09.  Title to Assets.  (a) On the date of the Latest  Balance  Sheet,
each member of  Holding's  consolidated  group 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,  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.   Each  member  of  Holding's
consolidated  group 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 any such member 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 such member of such property.

                  (b) With  respect  to each  lease of any  real  property  or a
material  amount  of  personal   property  to  which  any  member  of  Holding's
consolidated group is a party,  except for financing leases in which a member of
such consolidated group 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  Mergers  will not
constitute a default or a cause for termination or modification of such lease.

                  (c) No member of  Holding's  consolidated  group has 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.

                                       A-8
<PAGE>

         3.10. Legal Matters.  (a) To the knowledge of Holding,  (i) there is no
material claim, action, suit,  proceeding,  arbitration or investigation pending
in any court or  before or by any  governmental  agency  or  instrumentality  or
arbitration  panel or otherwise,  or threatened  against any member of Holding's
consolidated  group nor (ii) do any facts or  circumstances  exist that would be
likely to form the basis for any material  claim against any member of Holding's
consolidated group that, if adversely determined,  would have a material adverse
effect on Holding's consolidated group.

                  (b) Each member of Holding's  consolidated  group has complied
in all  material  respects  with and is not in default in any  material  respect
under (and has not been charged or threatened  with or 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 any member of Holding's  consolidated group as a result
of examination by any bank or bank holding company regulatory authority.

                  (d) No member of  Holding's  consolidated  group is subject to
any written  agreement,  memorandum or order with or by any bank or bank holding
company regulatory authority.

                  (e) To the  knowledge of Holding,  there is no claim,  action,
suit, proceeding, arbitration, or investigation, pending or threatened, in which
any material claim or demand is made or threatened to be made against any member
of Holding's consolidated group 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 any such member.

         3.11.  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"),  no  member of  Holding's  consolidated  group  sponsors,
maintains  or  contributes  to, and no such  member  has 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
Internal Revenue Code of 1986, as amended (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 threatened,  nor 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 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.  Each member of  Holding's  consolidated
group 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
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.  No  member  of  Holding's  consolidated  group has
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 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 of each benefit
plan and benefit arrangement of any member of Holding's consolidated group 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

                                       A-9

<PAGE>

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  have been
made available to Whitney.

                  (c)  All  group  health  plans  of  any  member  of  Holding's
consolidated group 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 any member of Holding's consolidated group, or to which any member
of Holding's  consolidated  group previously made  contributions  which has been
terminated  by any member of  Holding's  consolidated  group 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 any member
of Holding's  consolidated group, Whitney or Whitney's Bank 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.

                  (f) With  respect  to the ESOP,  neither  the  acquisition  of
securities  with the  proceeds of a loan nor the  retention  of such  securities
constitutes a breach of fiduciary  duty within the meaning of Section  404(a) of
ERISA. The ESOP has been created,  organized and administered in accordance with
the  requirements  applicable to employee  stock  ownership  plans as defined in
Section 401(a) and  4975(e)(7) of the Code. The securities  acquired by the ESOP
with the proceeds of a loan have the status of "qualifying  employer securities"
as that term is defined in Section 4975(e) of the Code and "employer securities"
as that term is defined in Section 490(1) of the Code.

         3.12. Insurance Policies.  Each member of Holding's  consolidated group
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.  No
member of Holding's  consolidated  group is now liable,  nor has any such member
received any notice of any material retroactive premium adjustment. All policies
are  valid  and  enforceable  and in full  force  and  effect,  and no member of
Holding's  consolidated  group has  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, no member of Holding's  consolidated group has 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).

         3.13. Agreements. (a)  No member of Holding's consolidated group is 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  subsection
3.11 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 subsection 3.07 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 Holding's
consolidated group as on the date of this Agreement may be provided

                                      A-10

<PAGE>


in their respective articles of incorporation or association and by-laws (and no
indemnification  of any such  officer,  director,  employee  or  agent  has been
authorized,  granted or awarded),  except if entered into in the ordinary course
of business with respect to customers of any member of Holding's consolidated
group, letters of credit, guaranties of endorsements and guaranties of
signatures;

                    (iv)  any agreement, contract or commitment which is or if
performed will be materially adverse to the financial condition, results of
operations or business of Holding's consolidated group; or

                     (v)  any agreement, contract or commitment containing any
covenant limiting the freedom of any  member  of  Holding's  consolidated  group
(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 bank holding companies or Louisiana
state or national banks, 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 any member of Holding's
consolidated  group is a party or which  affects any such  member.  To Holding's
knowledge, no member of Holding's consolidated group has in any material respect
breached,  nor is there any pending or threatened  claim that it has  materially
breached, any of the terms or conditions of any of such agreements, contracts or
commitments.

         3.14. Licenses, Franchises and Governmental Authorizations. Each member
of Holding's consolidated group possesses all licenses,  franchises, permits and
other  governmental  authorizations  necessary for the continued  conduct of its
business. The deposits of Bank are insured by the FDIC to the extent provided by
applicable law, and there are no pending or threatened  proceedings to revoke or
modify that insurance or for relief under 12 U.S.C.
Section 1818.

         3.15.  Corporate  Documents.  Holding has  delivered  to Whitney,  with
respect to each member of Holding's  consolidated group, true and correct copies
of its articles of  incorporation  or articles of association,  and its by-laws,
all as amended.  All of the foregoing and all of the corporate minutes and stock
transfer  records of each member of  Holding's  consolidated  group are current,
complete and correct in all material respects.

         3.16.  Certain  Transactions.  No past or present  director,  executive
officer or five  percent  shareholder  of any member of  Holding's  consolidated
group  has,  since  January 1, 1992,  engaged  in any  transaction  or series of
transactions  which,  if such  member had been  subject to Section  14(a) of the
Exchange Act, would have been would be required to be disclosed pursuant to Item
404 of  Regulation  S-K of the  Rules and  Regulations  of the SEC,  other  than
transactions which were so disclosed.

         3.17.  Broker's  or  Finder's  Fees.  Except for The  Robinson-Humphrey
Company,  Inc. ("Robinson-Humphrey"),  whose fees pursuant to a contract dated
July 30,  1996 will not exceed  $325,000  (except in the event that the  Average
Market Price exceeds $36.50),  plus the reimbursement of out-of-pocket costs not
to exceed $7,500, no agent, broker,  investment banker,  investment or financial
advisor or other person acting on behalf of any member of Holding's consolidated
group 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.

         3.18. Environmental Matters. (a) (i)  Each member of Holding's
consolidated group 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

                                      A-11

<PAGE>

ownership of its properties (collectively, the "Subject Properties"),  including
without  limitation,  to  the  knowledge  of  Holding,  properties  acquired  by
foreclosure or in settlement of loans;

                    (ii)  Each member of Holding's consolidated group is
in compliance with all terms and conditions of such permits,  licenses and
authorizations and with all applicable Environmental Law Requirements, except
for such  noncompliance  as would not reasonably be expected to have,
individually  or in the  aggregate,  a material adverse effect on the financial
condition,  results of operations or business of Holding and its consolidated
group, taken as a whole;

                   (iii)  There are no past or present events, conditions,
circumstances, activities or plans by any member of Holding's  consolidated
group related in any manner to any member of  Holding's consolidated group or
the Subject  Properties  that did or would violate  or  prevent  compliance  or
continued compliance with  any  of  the Environmental Law Requirements, or give
rise to any Environmental Liability, as hereinafter  defined, except for such as
would not  reasonably  be  expected to have,  individually or in the aggregate,
a  material  adverse effect  on the financial condition, results of operations
or business of Holding  and its consolidated group, taken as a whole;

                    (iv)  To Holding's knowledge, 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
threatened  by any person against any member of Holding's consolidated group, or
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 Holding's knowledge, no member of Holding's
consolidated group is 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 and future 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 from time to time 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.

                                      A-12
<PAGE>

               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.

         3.19. Compliance with Laws. Each member of Holding's consolidated group
is in compliance with all applicable laws, rules,  regulations,  orders,  writs,
judgments and decrees the noncompliance  with which reasonably could be expected
to have a  material  adverse  effect  on the  financial  condition,  results  of
operations or business of Holding's  consolidated  group taken as a whole. 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 Holding's consolidated group as a result of examination by any bank or
bank holding  company  regulatory  authority,  except those cited in examination
reports previously submitted to, and reviewed by, Whitney.

         3.20.  Intellectual Property. Each member of Holding's consolidated
group 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.

         3.21.  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.

         3.22. Accuracy of Statements.  No warranty or representation made or to
be made by any member of Holding's  consolidated  group in this  Agreement or in
any  document   furnished  or  to  be  furnished  by  any  member  of  Holding'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 subsection 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 Whitney's Bank

                  Whitney and  Whitney's  Bank  represent and warrant to Holding
and Bank that as of the date hereof 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 Whitney's Bank and, in addition includes Whitney Bank of Alabama and several
other subsidiaries. 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.  Whitney's  Bank is a national
banking  association  duly  organized and validly  existing and in good standing
under the laws of the United States of America.  Whitney and Whitney's Bank 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  Agreements to which it is a party and to
consummate the transactions  contemplated  hereby,  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 its  financial  condition,
results of operations or business.

         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, 1996,  17,165,056 shares of Whitney Common Stock were issued
and  outstanding  and 494,280  shares were held in its treasury.  All issued and
outstanding shares of capital stock of Whitney and Whitney's Bank 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
Whitney's

                                      A-13
<PAGE>

Bank  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 Whitney's Bank 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
Bank Merger  Agreement by Whitney as the sole shareholder of Whitney's Bank, all
corporate acts and other proceedings  required of Whitney and Whitney's Bank for
the due and valid  authorization,  execution,  delivery and  performance of this
Agreement and the Merger  Agreements and  consummation  of the Mergers have been
validly and  appropriately  taken.  Subject to such regulatory  approvals as are
required by law, this Agreement and the Merger  Agreements are legal,  valid and
binding  obligations  of Whitney and Whitney's  Bank 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   bankruptcy,
reorganization,  insolvency and other similar laws and court decisions  relating
to or affecting the  enforcement of creditors'  rights  generally and by general
equitable  principles.  With  respect to each of  Whitney  and  Whitney's  Bank,
neither the  execution,  delivery or performance of this Agreement or the Merger
Agreements,  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 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  Holding  true and  complete  copies of (i) the  consolidated
balance  sheets as of December 31, 1994 and December 31, 1995 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,  1995  filed  with the SEC
(collectively,  the  "Whitney  Financial  Statements")  and (ii)  the  unaudited
consolidated  balance sheet as of June 30, 1996 of Whitney and its  consolidated
subsidiaries and the related  unaudited  statements of operations and cash flows
for the six month period then ended, as presented in Whitney's  quarterly report
on Form 10-Q filed with the SEC (collectively,  the "Whitney's Interim Financial
Statements").

                  (b) The Whitney  Financial  Statements and the Whitney Interim
Financial  Statements  (each as defined in Schedule  4.04) 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 (of any kind whatsoever,  whether absolute,  accrued,
contingent,  matured  or  unmatured),  which  is not  reflected  and  adequately
reserved against in the Whitney Latest Balance Sheet in accordance with GAAP. No
report,  including  any report filed with the Federal  Reserve  Board,  or other
report,  proxy  statement  or  registration  statement  filed by any  member  of
Whitney's  consolidated  group with the SEC since January 1, 1993, and no report
made to  shareholders  of Whitney since  January 1, 1993,  as of the  respective
dates  thereof,  contained  and no such report,  proxy  statement,  registration
statement or report to shareholders filed or disseminated after the date of this
Agreement  through the Closing will  contain any untrue  statement of a material
fact or omitted,  or will 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.


                                      A-14

<PAGE>

         4.05.  Legality  of Whitney  Securities.  All shares of Whitney  Common
Stock to be issued pursuant to the Company Merger have been duly authorized and,
when  issued  pursuant  to the  Company  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 Holding 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, 1993,  1994 and 1995; (b) quarterly  reports on Form 10-Q for
the three months ended March 31 and June 30, 1996; and (c) proxy  statements for
the years 1994, 1995 and 1996; 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 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.

         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 or Form 10-Q  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 with or by any bank or bank
holding company regulatory authority.

         4.09. 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 Subsection 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.  Investigations;  Planning. Each member of Holding's consolidated
group  shall  continue  to provide to Whitney  and  Whitney's  Bank 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
Whitney's Bank and such  representatives  with such financial and operating data
and other  information  of any kind  respecting  its business and  properties as
Whitney  and  Whitney's  Bank 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 Holding's  consolidated  group.
Each member of Holding's consolidated group agrees to cooperate with Whitney and
Whitney's  Bank in  connection  with  planning  for the  efficient  and  orderly
combination of the parties and the operation of Whitney and Whitney's Bank (and,
if applicable,  Bank) after  consummation of the Company Merger. In the event of
termination of this Agreement prior to the Effective Date, Whitney shall, except
to any extent  necessary to assert any rights under this Agreement or the Merger
Agreements,

                                      A-15
<PAGE>

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 Holding's  consolidated  group 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 and Whitney's Bank. Whitney and Whitney's Bank shall continue to provide
Holding'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  Whitney's  Bank  to  the  extent   customary  in
transactions of the nature contemplated by this Agreement.

         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 Mergers and the transactions  contemplated
hereby  and  by  the  Merger   Agreements,   and  (d)  effect  the  transactions
contemplated  by  this  Agreement  and the  Merger  Agreements  at the  earliest
practicable date, subject to the proviso contained in Section 1.02 hereof.

         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
Holding (the "Proxy  Statement")  which  complies with the  requirements  of the
Securities Act of 1933 (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 Company Merger  Agreement and
the transactions  contemplated hereby and thereby to Holding'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  Agreements.   No  approval  by  Whitney's
shareholders is necessary as respects the Company Merger Agreement.  Whitney, as
the sole  shareholder  of  Whitney's  Bank,  shall take all action  necessary to
effect shareholder  approval of the Bank Merger Agreement,  subject to its right
to delay consummation of the Bank Merger in accordance with Section 1.02.

         5.05.  Press  Releases.  Whitney and Holding 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, no
member of  Holding's  consolidated  group or Whitney's  consolidated  group 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-mergers  combined  operations  of  Whitney  to  permit  the
termination of the limitations  set forth in the Shareholder  Commitments on the
ability of each person  referred to in Section 5.10 to resell  shares of Whitney
Common Stock in a manner  inconsistent with Whitney's ability to account for the
Mergers as a pooling of interests.

         5.06.  Preservation  of Business.  To the extent  consistent with sound
business  practices,  each member of Holding's  consolidated  group 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.

                                      A-16

<PAGE>

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

                  (a) except for the declaration and payment  of  regular
quarterly  dividends  during 1996 and 1997 in accordance with Section 3.07 until
the Effective Time, 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  prevent
dividends or distributions  from any member of Holding's  consolidated  group to
any other member of such consolidated group;

                  (b) amend its articles of incorporation or association or by-
laws 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 (i) such  agreements as are  terminable at will without any
penalty  or  other  payment  by it,  or  increase  the  compensation  (including
salaries, fees, bonuses, profit sharing, incentive, pension, retirement or other
similar  benefits and  payments)  of any such person in any manner  inconsistent
with its past  practices  and  (ii)  after  consultation  with  Whitney's  chief
executive  officer,  bonuses to certain  officers and employees in amounts in an
aggregate amount not exceeding  $150,000,  with such bonuses to be paid upon the
completion of the full conversion of Bank's data processing  system to Whitney's
Bank's system and in no event no later than November 1, 1997;

                  (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
subsection 3.09 hereof, or cancel any material  indebtedness  owing 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
or, except in the ordinary course of business  consistent with past practices or
as described in the Schedule of Exceptions;

                  (f)  commit  any act that is  intended  or  reasonably  may be
expected to result in any of its  representations  and  warranties  set forth in
this Agreement  being or becoming untrue in any material  respect,  or in any of
the conditions to the Mergers set forth in Section 6 not being satisfied,  or in
a violation of any provision of this Agreement, except, in every case, as may be
required by applicable law;

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

                                      A-17
<PAGE>

                  (j) dispose of investment securities in amounts or in a manner
inconsistent with past practices;  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 Schedule of Exceptions, sell
any asset held as other  real  estate or other  foreclosed  assets for an amount
materially  less than 100% of 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
Holding's or Bank's applicable regulatory lending limits;

                  (n)  take  or  cause  to  be  taken  any  action  which  would
disqualify the Mergers 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.  Holding will provide Whitney and Whitney
will provide  Holding (a) with prompt  written  notice of any  material  adverse
change in the financial condition, results of operations,  business or prospects
of any member of its consolidated  group, any material breach by any such member
of any of its warranties, representations or covenants in this Agreement, or any
material  action taken or proposed to be taken with respect to any member of its
consolidated  group  by any  regulatory  agency,  (b) as  soon  as  they  become
available,  copies of any financial  statements,  reports and other documents of
the type  referred  to in  subsection  3.04 with  respect to each  member of its
consolidated  group,  and  (c)  promptly  upon  its  dissemination,  any  report
disseminated to its shareholders.

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

         5.10.  Restricted  Whitney  Common  Stock.  Holding  will  use its best
efforts to  obtain,  prior to  Whitney's  filing of the  Registration  Statement
referred to in Section  5.14,  an agreement  from each person who is a director,
executive  officer or 10%  beneficial  owner of  securities of Holding (and such
other persons who Holding reasonably believes to be a "affiliate" of Holding for
purposes of the federal  securities  laws,  which  persons are listed on Exhibit
5.10 to the Schedule of  Exceptions)  who will receive  shares of Whitney Common
Stock by virtue of the  Company  Merger to the effect  that such person (i) will
not  dispose of any Whitney  Common  Stock  received  pursuant to the Mergers 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  treatment,  (ii) will
agree to escrow all such shares until Whitney has made a public  announcement of
the financial results of at least 30 days of 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 Holding or 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 Mergers  ("Shareholder's  Commitment").  With  respect to any
person or  persons  beneficially  owning 5% or more,  but less than 10%,  of the
Holding  Common  Stock (a "Five  Percent  Owner"),  Holding  shall  use its best
efforts to either  obtain a  Shareholder's  Commitment  from each such person or
persons or provide to Whitney and Whitney's  independent  public accountants (a)
such  certificates of Holding or Bank, their officers or third parties and other
documentary evidence, in form and substance satisfactory to Whitney, as Whitney

                                     A-18
<PAGE>

shall  determine  to  be  necessary  for  Whitney  and  its  independent  public
accountants  to  reasonably  conclude  that  such Five  Percent  Owner is not an
"affiliate"  of Holding for  purposes of the  federal  securities  laws or (b) a
legal opinion, from counsel reasonably acceptable to Whitney, to the effect that
such Five  Percent  Owner is not an  "affiliate"  of Holding for purposes of the
federal  securities laws, such opinion to be in form and substance  satisfactory
to Whitney and its independent public accountants.

         5.11. Loan Policy. No member of Holding's  consolidated group will make
any loans, or enter into any commitments to make loans, which vary other than in
immaterial  respects from its written loan policies,  a true and correct copy of
which loan  policies has been  provided to Whitney,  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  currently  in its loan
portfolio.

         5.12.  No  Solicitations.  Prior to the  Effective  Time or  until  the
termination of this Agreement,  no member of Holding's consolidated group shall,
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  Holding  in  good  faith,   after
consultation with its financial  advisors and its legal counsel,  to be required
to discharge properly the directors' fiduciary duties to Holding's  consolidated
group and its 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 Holding of the Mergers or
make a  recommendation  of any other  Acquisition  Transaction,  or any 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 Holding and Whitney); and each such member
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 Holding or Bank from  taking any action that the Board of  Directors
of  Holding  or Bank,  as the  case  may be,  determines,  in good  faith  after
consultation with and receipt of an opinion of counsel, is required by law or is
required to discharge his fiduciary duties to Holding's  consolidated  group and
its shareholders.

         5.13. Operating Functions.  Each member of Holding's consolidated group
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 such member's  Board
of  Directors,  would  adversely  affect its  operations if the Mergers were 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 Holding  Common  Stock  pursuant to the Company  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.  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  Holding  except to the  extent  that the  transfer  of any shares of Whitney
Common Stock received by shareholders of Holding 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 each member of
Holding's  consolidated group and each of their respective  directors,  officers
and other  persons,  if any,  who  control  Holding  within  the  meaning of the
Securities Act from and against (including,  without limitation,  advance, prior
to final  disposition  of the matter,  the  expenses of  defending)  any losses,
claims, damages, liabilities or judgments, joint or several, to which they or

                                      A-19
<PAGE>

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 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 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 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 any  member of  Holding's  consolidated
group or any officer, director or affiliate of any such member 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 Holding
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 Section 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  Mergers,  subject to its right to delay
consummation of the Bank Merger in accordance with Section 1.02.

         5.16.  Revenue Ruling.  Whitney may elect to prepare (and in that event
Holding 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 Agreements.

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

         5.18.  Withholding.  Whitney shall be entitled to deduct and withhold
from the consideration otherwise payable to any holder of Holding 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

                                      A-20
<PAGE>

this  Agreement  and the Merger  Agreements to have been paid to the person with
respect to whom such deduction and withholding was made.

         5.19.  NASDAQ/NMS.  Whitney  shall  cause the shares of Whitney  Common
Stock to be issued in the Merger to be duly  authorized,  validly issued,  fully
paid and  nonassessable,  free of any  preemptive  or  similar  right  and to be
approved for  quotation in the NASDAQ Stock Market prior to or at the  Effective
Time.

         5.20.  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 Holding's Articles of
Incorporation and By-Laws and in the Articles of Association and By-Laws of Bank
(as the case may be) as in effect as of the date of this  Agreement with respect
to matters occurring prior to or at the Effective Time (an "Indemnified  Party")
shall survive the Mergers 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.  Without
limiting the foregoing,  in any case in which approval is required to effectuate
any  indemnification,  the  determination of any such approval shall be made, at
the election of the Indemnified  Party, by independent  counsel  mutually agreed
upon between Whitney and the Indemnified Party.

                  (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 such  subparagraph,  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 Holding  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 Holding or Bank, or both,  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 Holding and Bank with respect to acts or omissions occurring prior
to or at the  respective  effective  times 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 make premium  payments
for the  insurance  policies  provided by this  Section  5.20 to the extent such
premiums  exceed 150% of the premiums  paid as of the date hereof by Holding for
such 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 5.20.


                                      A-21
<PAGE>

                  (e) The provisions of this Section 5.20 are intended to be for
the benefit of, and shall be enforceable by, each  Indemnified  Party and his or
her heirs and representatives.

         5.21. Employees and Certain Other Matters. (a) All employees of Holding
and Bank at the  Effective  Time shall  become or remain  employees of Bank upon
consummation of the Company Merger, and upon consummation of the Bank Merger all
employees  of Bank  at the  effective  time  of the  Bank  Merger  shall  become
employees of Whitney's Bank.  Although Whitney and Whitney's Bank will use their
best efforts to retain  Holding's and Bank's  employees either in their existing
positions or other positions in the Whitney system, Whitney,  Whitney's Bank and
Bank reserve, subject to any such employee's rights to receive payments pursuant
to (i) the agreements set forth in paragraph 4 of the section of the Schedule of
Exceptions  that  corresponds  to  Section  3.07 and  (ii)  bonuses  payable  to
employees pursuant to Section 5.07(c), 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 Holding and Bank shall be
eligible for such employee  benefits as are generally  available to employees of
Whitney's Bank 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  Whitney's  Bank's
Compensation  Committee and (ii) all Holding and Bank employees who are employed
at the  Effective  Time  shall be given  full  credit  for all prior  service as
employees of Holding or Bank provided, however, that all such employees shall be
treated as newly hired Whitney's Bank employees (i.e., prior service credit with
Holding and Bank shall not be considered in  determining  future  benefits under
Whitney's or Whitney's  Bank's defined benefit pension plan) for all purposes of
Whitney's or Whitney's Bank's defined benefit pension plan.

                  (b)  Holding  and Bank agree that they will not,  without  the
prior  written  consent of Whitney or except as provided in the last sentence of
this section  5.21(b),  take any action to terminate  those  certain  agreements
between Holding and Bank, on the one hand, and certain employees of Bank, on the
other hand,  which  agreements  are more fully  described in  Paragraph  4(a) of
Section 3.07 of the Schedule of Exceptions (the "Change in Control Agreements"),
and, upon receipt of the notice specified in the following sentence, will assign
them to Whitney at the Closing with such assignments to be effective only at the
Effective Time.  Whitney agrees to notify Holding and Bank in writing,  at least
30 days  prior to  Closing,  of the Change in Control  Agreements  that  Whitney
agrees  to  assume  in  accordance  with  Section  5 of the  Change  in  Control
Agreements.  Holding and Bank may terminate, in accordance with their respective
terms,  any such Change in Control  Agreement  that Whitney does not so agree to
assume.

         5.22.   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 Holding and
Bank of the shares of  Whitney  Common  Stock  received  by them in the  Company
Merger.  In the event of any proposed  sale of such Whitney  Common Stock by any
such former  shareholder of Holding Common Stock who receives  shares of Whitney
Common Stock by reason of the Company 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 5.22,  Whitney shall not be
required to maintain the  registration of the Whitney Common Stock 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.

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


                                      A-22
<PAGE>

         Section 6.     Conditions of Closing

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

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

                  (b)  Effective   Registration   Statement.   The  Registration
Statement  shall  have  become  effective  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 the Merger  Agreements or
this  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 the Merger  Agreements  or this  Agreement  would  constitute a
violation  of any law or that it intends to  commence  proceedings  to  restrain
consummation of the Mergers.

                  (d)  Statutory   Requirements  and  Regulatory  Approval.  All
statutory   requirements   for  the  valid   consummation  of  the  transactions
contemplated  by the  Merger  Agreements  and this  Agreement  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  Agreements shall have been received;  and the terms of
all requisite orders,  consents and approvals shall then permit the effectuation
of the Mergers  without  imposing any material  conditions  with respect thereto
except for any such conditions that are acceptable to Whitney.

                  (e) Tax Opinion.  Whitney and Holding  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 Mergers,  including  an opinion that the receipt of Whitney  Common Stock by
Holding's shareholders will not be a taxable event to such shareholders.

         6.02.    Additional Conditions of Whitney.  The obligations of Whitney
and Whitney's Bank to consummate the Company 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 Holding and Bank contained in this Agreement
shall be true and  correct in all  material  respects,  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, and each of Holding and Bank shall have in all material respects
performed  all  obligations  and complied  with all  covenants  required by this
Agreement and the Merger Agreements to be performed or complied with by it at or
prior to the Closing. In addition, each of Holding and Bank shall have delivered
to Whitney and Whitney's Bank its  certificate  dated as of the Closing Date and
signed by its chief executive  officer and chief financial officer 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 it in this Agreement.

                  (b) No Material Adverse Change.  There shall not have occurred
any material  adverse  change from the date of the Latest  Balance  Sheet to the
Closing Date in the  financial  condition,  results of operations or business of
Holding's consolidated group taken as a whole;  provided,  however, that (i) the
incurrence by Holding of

                                      A-23
<PAGE>

expenses  (including fees and expenses of  Robinson-Humphrey;  Deloitte & Touche
LLP; Duval,  Funderburk,  Sundbery & Lovell;  and Correro Fishman Haygood Phelps
Weiss Walmsley & Casteix,  L.L.P.),  and payments to executive officers or other
employees of Holding or Bank pursuant to agreements set forth on the Schedule of
Exceptions  and (ii) the  occurrence of an event  specifically  permitted  under
Section 5.07 or  otherwise  expressly  consented  to in writing by Whitney,  are
expressly deemed not to constitute such a material adverse change.

                  (c)   Accountants'   Letters.   Whitney  shall  have  received
"comfort"  letters in  conformity  with SAS No. 72 from  Deloitte & Touche  LLP,
independent public accountants for Holding,  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
Duval,  Funderburk,  Sundbery & Lovell,  general counsel to Holding, and Correro
Fishman  Haygood Phelps Weiss  Walmsley & Casteix,  L.L.P.,  special  counsel to
Holding,  opinions, 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 the
members of Holding's consolidated group and governmental officials.

                  (e)  Tax Consequences of Mergers.  Whitney shall have received
satisfactory assurances from their independent accountants that the consummation
of the Mergers will not be a taxable event to Whitney and Whitney's Bank.

                  (f)  Pooling  of  Interest.  Within  twenty  (20)  days of the
execution of this Agreement and within three (3) days prior to the Closing Date,
Deloitte & Touche LLP shall issue to Whitney a "poolability  letter"  addressing
paragraphs  46a,  46b,  47c  and  47d  of  the  APB  Opinion  No.  16  "Business
Combinations"  as to whether or not Deloitte & Touche LLP believes  that Holding
would meet these specific criteria for a pooling-of-interest  in accordance with
generally accepted accounting principles.  Deloitte & Touche LLP will express no
opinion as to whether  Whitney will be permitted to account for the Mergers 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  Agreements  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 Holding or who owns 10% or more of the Holding
Common Stock outstanding (and such other persons who are "affiliates" of Holding
for purposes of the federal  securities laws,  including,  as applicable,  those
persons who are listed on Exhibit  5.10 to the Schedule of  Exceptions),  and in
the case of any Five Percent Owners, such a Shareholder's  Commitment shall have
been executed,  the certificates and other  documentary  evidence referred to in
clause (a) of Section  5.10 shall have been  provided,  or the legal  opinion or
opinions  referred to in clause (b) of Section  5.10 shall have been  delivered;
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 or other
certificate or documentation  otherwise  provided to Whitney 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.

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

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

                                      A-24
<PAGE>

                  (a)   Representations,    Warranties   and   Covenants.    The
representations  and  warranties of Whitney and Whitney's Bank contained in this
Agreement shall be true and correct in all material  respects,  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,  and each of  Whitney  and  Whitney's  Bank  shall  have in all
material  respects  performed  all  obligations  and complied with all covenants
required by this Agreement and the Merger Agreements to be performed or complied
with  by it at or  prior  to the  Closing.  In  addition,  each of  Whitney  and
Whitney's Bank shall have delivered to Holding and Bank its certificate dated as
of the  Closing  Date and  signed  by its  chief  executive  officer  and  chief
financial  officer 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
it in this Agreement.

                  (b)  Opinion of  Counsel.  Holding  shall have  received  from
Milling,  Benson,  Woodward,  Hillyer,  Pierson & Miller,  L.L.P.,  counsel  for
Whitney and Whitney's Bank, an opinion,  dated as of the Closing Date, customary
in scope and in form and  substance  satisfactory  to  Holding.  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. Holding shall have received
letters  from  Robinson-Humphrey dated the date of the  mailing  of the Proxy
Statement  to  shareholders  of Holding and dated the date of the meeting of the
shareholders  of Holding,  in each case in form and  substance  satisfactory  to
Holding,  confirming  such  financial  advisor's  prior  opinion to the Board of
Directors  of  Holding to the effect  that the  consideration  to be paid in the
Company 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 Whitney's Latest Balance Sheet to the Effective
Date in the financial condition,  results of operations or business of Whitney's
consolidated group taken as a whole.

                  (e) No  Registration  Rights.  Holding shall have delivered to
Whitney termination  agreements,  in form and substance satisfactory to Whitney,
duly executed by ATCO  Development,  Inc.  (and/or  Surrat Trust,  N.V.) and the
ESOP,  respectively,  pursuant  to which  each of them  shall  have  waived  and
terminated any and all rights that they may have to require  registration  under
the  Securities Act of shares of Holding Common Stock (and any shares of Whitney
Common Stock into which such shares are to be  converted in the Company  Merger)
pursuant to the  Subscription  Agreement dated July 24, 1984 between Holding and
Surrat Trust,  N.V. c/o ATCO  Development,  Inc. and the Subscription  Agreement
dated May 23, 1984 between Holding and the ESOP, or otherwise.

         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  subsection  6.01  hereof and the  condition
specified in subparagraph  (c) of subsection  6.03 hereof.  The failure to waive
any condition hereunder shall not be deemed a breach of subsection 5.02 hereof.

         Section 7.        Termination

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

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

                  (b) Breach.  By the Board of  Directors  of either  Whitney or
Holding in the event of a breach by any member of the consolidated  group of the
other of them 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 45 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.

                                      A-25

<PAGE>

                  (c)  Abandonment.  By the Board of Directors of either Whitney
or Holding if (i) all  conditions  to Closing  required by Section 6 hereof have
not been met by or waived by Whitney or  Holding by June 30,  1997,  or (ii) any
such  condition  cannot be met by June 30,  1997 and has not been waived by each
party in whose favor such  condition  inures,  or (iii) if the Mergers  have not
been  consummated by June 30, 1997,  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 if this  Agreement  or the
Company  Merger  fails to receive the  requisite  vote at any meeting of Holding
shareholders  called for the purpose of voting  thereon,  and by Holding if this
Agreement or the Company Merger Agreement fails to receive the requisite vote at
the meeting of Holding  shareholders  called by its Board of  Directors  for the
purpose of voting thereon.

                  (e)  Holding  Recommendation.  By  Whitney  if  the  Board  of
Directors of Holding (A) shall withdraw,  modify or change its recommendation to
its  shareholders  of this Agreement or the Mergers or shall have resolved to do
any of the foregoing;  (B) shall have recommended to the shareholders of Holding
(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 any member of
Holding's consolidated group; or (iii) any acquisition,  by any person or group,
of the  beneficial  ownership  of 15% or more of any  class of  Holding  capital
stock; or (C) shall have made any announcement of any agreement to do any of the
foregoing.

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

         7.02.  Effect  of  Termination;  Survival.  Upon  termination  of  this
Agreement  pursuant  to  this  Section  7,  the  Merger  Agreements  shall  also
terminate,  and this Agreement and the Merger Agreements shall be void and of no
effect,  and there  shall be no  liability  by reason of this  Agreement  or the
Merger Agreements, 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 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 last sentence of subsection 5.01;
subsections 5.14(b) and (c); subsection 7.02; subsection 7.03 and Section 8.

         7.03. Termination Fee.  If this Agreement is terminated pursuant to
7.01(f), then Holding shall pay or cause to be paid to Whitney upon demand a fee
of $2,000,000 (the "Termination Fee"), 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  Agreements  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:

                                      A-26
<PAGE>


                  If to Whitney or Whitney's Bank:

                           Whitney Holding Corporation
                           Attention:  Mr. William Marks
                           228 St. Charles Avenue
                           New Orleans, Louisiana 70130

                  With copies to:

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


                  If to Holding or Bank:

                           First National Bankshares, Inc.
                           Attention:  Mr. Jerome H. Mire
                           7910 Main Street
                           Houma, Louisiana 70360


                  With copies to:

                           Sidney C. Sundbery, Esq.
                           Duval, Funderburk, Sundbery & Lovell
                           101 Wilson Avenue
                           Houma, Louisiana 70364

                           Paul M. Haygood, Esq.
                           Correro Fishman Haygood Phelps
                             Weiss Walsmley & Casteix, L.L.P.
                           Place St. Charles, 47th Floor
                           201 St. Charles Avenue
                           New Orleans, Louisiana 70170-4700

         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 Mergers are consummated, all expenses incurred in connection with
this Agreement and the Merger Agreements 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.

                                      A-27

<PAGE>

         8.06. Integrated Agreement. This Agreement, the Merger Agreements,  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
Agreements,  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 any member of
either consolidated group 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  Agreements  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  Agreements,  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 Agreements,  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  Agreements  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.

         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 bank or bank  holding  company  regulatory
authority;  it being  understood  that a disclosure  in any closing  certificate
provided in accordance with  subparagraph (a) of subsection 6.02 or subparagraph
(a) of subsection 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

                                      A-28

<PAGE>

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


FIRST NATIONAL BANKSHARES, INC.

BY:  /s/ Jerome H. Mire
     -------------------------
     Jerome H. Mire
ITS: President and CEO


FIRST NATIONAL BANK OF HOUMA

BY:  /s/ Jerome H. Mire
     -------------------------
     Jerome H. Mire
ITS: President and CEO

                                      A-29

<PAGE>

                                                              Exhibit 1.01(a) to
                                                    Agreement and Plan of Merger


                            JOINT AGREEMENT OF MERGER

                                       OF

                         FIRST NATIONAL BANKSHARES, INC.

                                       AND

                           WHITNEY HOLDING CORPORATION


         THIS JOINT AGREEMENT OF MERGER (this "Joint  Agreement") is dated as of
the  ______  day  of  ______________________,   199__,  between  First  National
Bankshares,  Inc.,  a Louisiana  corporation  ("Holding"),  and Whitney  Holding
Corporation,  a Louisiana corporation ("Whitney");  and is entered into pursuant
to the provisions of Sections 111, et seq. of the Louisiana Business Corporation
Law ("LBCL").

         WHEREAS,  as required by law, at least a majority of the members of the
respective  Boards of  Directors  of  Holding  and  Whitney  (collectively,  the
"Merging  Corporations")  deem it advisable that Holding be merged with and into
Whitney (the "Company  Merger"),  as provided in this Joint Agreement and in the
Agreement and Plan of Merger dated October ___, 1996 (the "Plan") among Whitney,
Holding,  Whitney National Bank (which is a wholly-owned subsidiary of Whitney),
and First National Bank of Houma ("Bank") (which is a wholly-owned subsidiary of
Holding),  which  sets  forth,  among  other  things,  certain  representations,
warranties, covenants and conditions relating to the Company Merger; and

         WHEREAS,  as required by law, at least a majority of the members of the
respective  Boards of Directors of the Merging  Corporations  wish to enter into
this Joint  Agreement and submit it to the  shareholders of Holding for approval
in the manner  required by law and,  subject to such  approval and to such other
approvals as may be required,  to effect the Company  Merger,  all in accordance
with the provisions of this Joint Agreement.

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

         1.  THE MERGER

         In accordance with the applicable provisions of the LBCL, Holding shall
be merged with and into Whitney;  the separate existence of Holding shall cease;
and Whitney shall be the corporation surviving the Company Merger.

         2.  EFFECTIVENESS OF THE COMPANY MERGER

         2.1.  Effective Time of the Company Merger.  The Company Merger shall
become effective at 12:01 p.m. on the date on which this Joint Agreement, having
been executed and acknowledged in the manner required by law, is filed in the
office of the Secretary of State of Louisiana (the "Effective Time").

         2.2.  Effect of the Company  Merger.  At the  Effective  Time,  (i) the
separate  existence of Holding  shall cease and Holding shall be merged with and
into  Whitney;  (ii)  Whitney  shall  continue  to  possess  all of the  rights,
privileges  and  franchises  possessed by it and shall,  at the Effective  Time,
become vested with and possess all rights,  privileges and franchises  possessed
by Holding;  (iii) Whitney shall be responsible  for all of the  liabilities and
obligations of Holding in the same manner as if Whitney had itself incurred such
liabilities  or  obligations,  and the Company Merger shall not 
                                      A-30
<PAGE>
affect or impair the  rights  of the  creditors  or of  any  persons  dealing
with  the  Merging Corporations;  and (iv) the Company  Merger shall,  from and
after the Effective Time, have all the effects provided by applicable Louisiana
law.

         2.3.  Articles of Incorporation.

                  (a) The  Articles of  Incorporation  of Whitney,  as in effect
immediately  prior to the Effective Time,  shall not be amended by reason of the
Company  Merger and shall be the  Articles  of  Incorporation  of Whitney as the
surviving  corporation in the Company Merger until thereafter changed or amended
as provided therein or by applicable law.

                  (b) The Bylaws of Whitney,  as in effect  immediately prior to
the  Effective  Time,  shall not be amended by reason of the Company  Merger and
shall be the Bylaws of  Whitney  as the  surviving  corporation  in the  Company
Merger until thereafter  changed or amended as provided therein or by applicable
law.

         2.4.  Directors and Officers.  The directors and officers of Whitney at
the  Effective  Time  shall be the  directors  and  officers  of  Whitney as the
surviving  corporation  in  the  Company  Merger  until  the  earlier  of  their
resignation or removal or until their respective successors are duly elected and
qualified, as the case may be.

         2.5.  Additional  Actions.  If, at any time after the  Effective  Time,
Whitney shall consider or be advised that any further  assignments or assurances
in law or any other acts are  necessary  or  desirable  (a) to vest,  perfect or
confirm, of record or otherwise,  in Whitney,  title to or the possession of any
property  or right of Holding  acquired  or to be acquired by reason of, or as a
result of, the Company  Merger,  or (b)  otherwise  to carry out the purposes of
this Joint  Agreement,  Holding and its proper  officers and directors  shall be
deemed to have  granted to Whitney an  irrevocable  power of attorney to execute
and deliver all such proper deeds,  assignments  and assurances in law and to do
all acts necessary or proper to vest, perfect or confirm title to and possession
of such property or rights in Whitney and otherwise to carry out the purposes of
this Joint Agreement; and the proper officers and directors of Whitney are fully
authorized in the name of Holding to take any and all such action.

         3.  METHOD OF CARRYING COMPANY MERGER INTO EFFECT

         The  shareholders  of Whitney are not  required  to approve  this Joint
Agreement under applicable provisions of the LBCL; however, this Joint Agreement
shall be submitted to the  shareholders of Holding for their  approval.  If such
approval is given,  then the fact of such approval shall be certified  hereon by
the  Secretary of Holding.  This Joint  Agreement,  so approved  and  certified,
shall, as soon as is practicable, be signed and acknowledged by the President or
Vice  President  of  each  of  the  Merging  Corporations.  As  soon  as  may be
practicable  thereafter  and after the  approval  of all  applicable  regulatory
authorities  and the expiration of all applicable  waiting  periods,  this Joint
Agreement,  so  certified,  signed and  acknowledged,  shall be delivered to the
Secretary  of State of  Louisiana  for filing in the manner  required by law and
shall  be  effective  at  the  Effective  Time;  and  thereafter,   as  soon  as
practicable,  a copy of the  Certificate  of Merger  issued by the  Secretary of
State of Louisiana,  and certified by him to be a true copy,  shall be filed for
record in the Office of the  Recorder of  Mortgages of the parishes in which the
Merging Corporations have their respective  registered offices and in the Office
of the Recorder of  Conveyances  of each parish in which  Holding has  immovable
property.

         4.  CONVERSION OF SHARES

         4.1.  Conversion.  Subject to the  provisions of this Section 4, at the
Effective  Time,  by virtue of the Company  Merger and without any action on the
part of the holders thereof, the shares of Holding common stock, par value $2.50
per share ("Holding Common Stock") shall be converted as follows:

                  (a) Exchange Ratio.  Except for shares of Holding Common Stock
held by Holding as treasury  shares (which shall by reason of the Company Merger
be  cancelled),  and subject to the  provisions  of Section  4.1(b)  relating to
fractional  shares,  each issued and  outstanding  share of Holding 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-31

<PAGE>
the quotient (the "Exchange Ratio") obtained by dividing the Maximum Deliverable
Amount (as hereinafter  defined) by the total number of issued and outstanding 
shares (not treasury shares) of Holding Common Stock at the Effective Time.

                     (i)   Maximum Deliverable Amount.  The term "Maximum
Deliverable Amount" means the quotient obtained by dividing $41,000,000 by the
Average Market Price (as defined below).

                    (ii)   Average Market Price. The "Average 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  Time,  as  reported in
the Wall Street Journal (corrected for typographical errors); provided, however,
that if the Average Market Price as calculated  above is less than $28.50,  the
Average Market Price for purposes of this Section 4.1(a) shall  be  $28.50, and
if the  Average  Market  Price as calculated above is greater than $36.50,  the
Average Market Price for purposes of this Section 4.1(a) shall be $36.50.

                  (b) Fractional Shares.  In lieu of the issuance of fractional
shares of Whitney Common Stock,  each shareholder of Holding,  upon surrender of
his or her certificate that immediately  prior to the Effective Time represented
Holding Common Stock,  other than shares of Holding Common Stock held by Holding
as treasury  shares (which shall by reason of the Company  Merger be cancelled),
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 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 Holding  Common  Stock,  other than shares of Holding  Common
Stock held by Holding as treasury  shares  (which shall by reason of the Company
Merger be cancelled),  upon surrender  thereof to the exchange agent selected by
Whitney  (the  "Exchange  Agent"),   together  with  duly  executed  transmittal
materials  provided  pursuant to Section 4.1(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 Holding Common Stock were converted. Until so
surrendered,  each outstanding Holding 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
Holding  Common  Stock shall have been  converted.  Whitney  may, at its option,
refuse to pay any  dividend or other  distribution  to holders of  unsurrendered
Holding stock certificates until surrendered;  provided,  however, that upon the
surrender and exchange of any Holding 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 Holding  Common Stock  theretofore  represented  by such  certificates
shall have been exchanged.

                  (d) Deposit.  Promptly  following 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 Holding Common Stock pursuant to this Section 4.

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


                                      A-32
<PAGE>
         4.2.  Closing Transfer Books. At the Effective Time, the stock transfer
books of Holding  shall be closed and no  transfer  of shares of Holding  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  Holding  Common  Stock in  accordance  with this  Joint
Agreement shall be deemed to have been issued in full satisfaction of all rights
pertaining to the shares of Holding Common Stock theretofore represented by such
certificates.

         5.  MISCELLANEOUS

         5.1.  Termination.  Prior to the Effective Time, this Joint Agreement
may be terminated, and the Company Merger abandoned, as set forth in the Plan.

         5.2.  Headings.  The descriptive headings of the sections of this Joint
Agreement are inserted for convenience only and do not constitute a part hereof
for any other purpose.

         5.3.  Modifications,  Amendments and Waivers.  At any time prior to the
Effective Time  (notwithstanding  any shareholder approval that may have already
been given),  the parties hereto may, to the extent permitted by and as provided
in the Plan,  modify,  amend or  supplement  any term or provision of this Joint
Agreement.

         5.4.  Governing Law. This Joint Agreement shall be governed by the laws
of the State of Louisiana (regardless of the laws that might be applicable under
principles  of conflicts of law) as to all matters,  including,  but not limited
to, matters of validity, construction, effect and performance.

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

                            [Signature lines omitted]

                                      A-33

<PAGE>

                                                              Exhibit 1.01(b) to
                                                    Agreement and Plan of Merger


                               AGREEMENT OF MERGER

                                       OF

                          FIRST NATIONAL BANK OF HOUMA

                                      INTO

                              WHITNEY NATIONAL BANK


         THIS AGREEMENT OF MERGER (this "Agreement") is made and entered into as
of this ______ day of  ______________________,  199___,  between First Louisiana
National  Bank of Houma,  a national  banking  association  domiciled  at Houma,
Louisiana  ("Bank"),  and Whitney National Bank, a national banking  association
domiciled at New Orleans, Louisiana ("WNB" or the "Receiving Association").

         WHEREAS, at least a majority of the members of the respective Boards of
Directors of Bank and WNB (collectively called the "Merging  Associations") deem
it  advisable  that Bank be merged  with and into WNB (the  "Bank  Merger"),  as
provided in this Agreement and in the Agreement and Plan of Merger dated October
____,  1996  (the  "Plan"),  among the  Merging  Associations,  Whitney  Holding
Corporation,  a Louisiana corporation ("Whitney") of which WNB is a wholly-owned
subsidiary,  and  First  National  Bankshares,  Inc.,  a  Louisiana  corporation
("Holding"),  of which Bank is wholly-owned subsidiary,  which sets forth, among
other things,  certain  representations,  warranties,  covenants and  conditions
relating to the Bank Merger; and

         WHEREAS, at least a majority 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  Comptroller  of  the  Currency  of  the  United  States  (the
"Comptroller")  being duly given and to such other  approvals as may be required
by law, to effect the Bank 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 Bank Merger, the parties hereto agree as follows:

         1. The Bank  Merger.  At the  Effective  Time (as  defined in Section 2
hereof),  Bank and WNB shall be merged  with and into WNB under the  Articles of
Association  of WNB, as amended,  existing  Charter No.  14977,  pursuant to the
provisions of, and with the effect  provided in, 12 U.S.C.  Section 215a. 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). The Articles of
Association of WNB shall not be altered or amended by virtue of the Bank Merger,
and the incumbency of the directors and officers of WNB shall not be affected by
the Bank Merger nor shall any person  succeed to such positions by virtue of the
Bank Merger.

         2.  Effective Time.  The Bank Merger shall become effective at the time
specified or permitted by the Comptroller in a certificate or other written
record issued by the Office of the Comptroller of the Currency (the "Effective
Time").

         3.  Cancellation  of Capital Stock of Bank.  At the Effective  Time, by
virtue of the Bank Merger,  all shares of the capital stock of Bank,  other than
any such shares as to which  dissenters'  rights  shall  exist at the  Effective
Time, shall be cancelled.

                                      A-34

<PAGE>


         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 Bank Merger.  Therefore,  at the Effective  Time,  the amount of
capital stock of WNB, the Receiving Association, shall be $3,358,400.00, 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 or banking
association  participating  in the Bank  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 Bank Merger without any
deed or other  transfer.  The  Receiving  Association,  upon the Bank 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 Bank 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. 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 Bank 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 Comptroller for filing in the
manner required by law.

         7.  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 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-35

<PAGE>


                                                              Exhibit 6.02(g) to
                                                    Agreement and Plan of Merger


                                     [date]



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

Dear Mr. Marks:

         In  consideration  of the benefits I will receive as a  shareholder  of
First  National  Bankshares,  Inc.  ("Holding")  from the  Agreement and Plan of
Merger  dated  October  ____,  1996 (the  "Agreement")  between  Holding,  First
National Bank of Houma  ("Bank"),  Whitney  National Bank,  and Whitney  Holding
Corporation ("Whitney"), I agree as follows:

         [If a director or  executive  officer of  Holding:  I agree to vote all
shares of Holding  common  stock  ("Holding  stock")  over which I have or share
voting power in favor of approving  the Agreement and the mergers 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 Holding  stock over which I have or
share voting power solely in a fiduciary  capacity on behalf of any person other
than Holding or Bank, if I determine,  in good faith after consultation with and
receipt of an opinion of  counsel,  that such a vote would  cause a breach of my
fiduciary duties to such other person.]

         I [further]  agree that,  prior to the Effective  Date, as that term is
set forth in the  Agreement,  I will not,  without the prior consent of Whitney,
transfer any of the shares of Holding stock over which I have or share the power
to sell,  transfer,  pledge,  or otherwise  alienate or encumber  (the "Power of
Disposition"), except by operation of law, by will, or under the laws of descent
and  distribution  or, in the case of any transfer  more than 30 days before the
Effective Date, where the transferee  agrees in writing to be bound by the terms
of this letter.

         I also  acknowledge that Whitney intends to account for the acquisition
of Holding and Bank as a pooling of interests.  I understand that my transfer of
any  shares of  Holding  stock  within 30 days of the  Effective  Date or of any
Whitney  common stock  ("Whitney  stock") that I receive in exchange for Holding
stock prior to Whitney's  publication of financial  results covering at least 30
days of its 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  (a) within 30 days of the  Effective
Date,  any shares of Holding stock over which I have Power of Disposition or (b)
the  Whitney  stock  which I receive in exchange  for such  Holding  stock until
Whitney  has  published  financial  results  covering  at  least  30 days of its
combined operations with Holding following the Effective Date.

         I authorize  Boatmen's  Trust Company  (Trust  Department),  St. Louis,
Missouri, to hold the certificates representing the shares of Whitney stock into
which my shares of Holding stock will be converted  (but not any dividends  paid
with  respect  thereto)  until the date that I am free to trade those  shares in
accordance with the foregoing paragraph.

         I certify that the  following are all of the shares of Holding stock of
which I hold the Power of Disposition.

         [List number of shares and how held - e.g., "street name," I/N/O 
- ------ etc.]                                   ----
       ---
                                      A-36

<PAGE>



         I am aware that  Whitney  intends  to treat the merger of Holding  into
Whitney (the "Merger") 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 stock that I will receive in
the Merger.

         I also understand the resale or other disposition of Whitney stock that
I receive  may be governed  by Rule 145 of the SEC under the  Securities  Act of
1933, as amended (the "Securities  Act"), which Rule has been explained to me. I
agree not to sell any of the Whitney  stock to be received by me in violation of
the Securities Act 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 or upon any material amendment of
the Agreement.

                                   Sincerely,


                                      A-37

<PAGE>


                               FIRST AMENDMENT TO
                          AGREEMENT AND PLAN OF MERGER


         This First Amendment to Agreement and Plan of Merger (the  "Amendment")
is made as of December 10, 1996 between Whitney Holding Corporation, a Louisiana
corporation   ("Whitney"),   and  Whitney  National  Bank,  a  national  banking
association  ("Whitney Bank"),  on the one hand, and First National  Bankshares,
Inc., a Louisiana corporation  ("Holding"),  and First National Bank of Houma, a
national banking association ("Bank"), on the other hand. Capitalized terms used
in this  Amendment  and not otherwise  defined shall have the meanings  given to
them in the Plan of Merger (as defined below).

                                    RECITALS

         WHEREAS,  Whitney,  Whitney Bank,  Holding and Bank are parties to that
certain  Agreement  and Plan of Merger  dated  October  11,  1996 (the  "Plan of
Merger"); and

         WHEREAS,  Whitney,  Whitney Bank,  Holding and Bank desire to amend the
Plan of Merger  pursuant to Section  8.09 thereof to correct  certain  erroneous
references as set forth herein.

                                    AGREEMENT

         NOW, THEREFORE, in consideration of the premises and for other good and
valuable  consideration,   the  receipt  and  sufficiency  of  which  is  hereby
acknowledged,  Whitney,  Whitney Bank, Holding and Bank, intending to be legally
bound, hereby agree as follows:

         1. Section  5.20(c) of the Plan of Merger is hereby amended by deleting
the phrase  "with  respect  to acts or  omissions  occurring  prior to or at the
respective effective times" appearing in the first clause of such subsection and
inserting  in lieu  thereof  the  phrase  "with  respect  to  acts or  omissions
occurring prior to or at the Effective Time."

         2. Sections  6.02 and 6.03 of the Plan of Merger are hereby  amended by
deleting  from  Section  6.03 the  paragraph  currently  identified  as  Section
6.03(e),  which paragraph is entitled "No Registration Rights," and by inserting
that paragraph,  without change,  as a new subsection (i) of Section 6.02 of the
Plan of Merger.

         3. Except to the extent specifically amended herein, the Plan of Merger
shall remain in full force and effect in accordance with its terms,  provisions,
covenants and agreements.

         4. This  Amendment  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.

         IN WITNESS WHEREOF,  the parties have executed this Amendment as of the
date first written above.


   WHITNEY HOLDING CORPORATION             FIRST NATIONAL BANKSHARES, INC.    

By: /s/ William L. Marks                By:  /s/ Jerome H. Mire
    ----------------------------             ----------------------------
        William L. Marks,                        Jerome H. Mire, 
        Chairman and CEO                         President and CEO


WHITNEY NATIONAL BANK                   FIRST NATIONAL BANK OF HOUMA

By: /s/ William L. Marks                By:  /s/ Jerome H. Mire
    ----------------------------             ----------------------------
        William L. Marks,                        Jerome H. Mire
        Chairman and CEO                         President and CEO



                                      A-38

<PAGE>



                                   APPENDIX B
             Fairness Opinion of The Robinson-Humphrey Company, Inc.


<PAGE>



                [The Robinson-Humphrey Company, Inc. Letterhead]



                                     January 16, 1997    



Board of Directors
First National Bankshares, Inc.
600 East Main Street
Houma, Louisiana 70360-3406

Gentlemen:

     In connection with the proposed  acquisition of First National  Bankshares,
Inc. ("FNH") by Whitney Holding  Corporation  ("WTNY") (the "Merger"),  you have
asked us to render an opinion as to whether the  financial  terms of the Merger,
as provided  in the  Agreement  and Plan of Merger dated as of October 11, 
   1996, as amended, among such parties (the "Merger Agreement"), are fair,    
from a financial point of view, to the stockholders of FNH. Under the terms of 
the Merger, holders of all outstanding shares of FNH stock will receive 
consideration  equal to $20.321 of WTNY Common  Stock  shares for each FNH share
held, provided  that the Average Market Price, which shall be the average of the
closing per share trading prices of WTNY Common Stock on the twenty trading days
preceding the fifth trading day immediately  prior to the Effective Time, on the
Nasdaq Stock Market of the Common Stock of WTNY is within the range specified in
the Merger Agreement ($28.50 per share - $36.50 per share). If the average 
closing price of WTNY is below  $28.50 then the  exchange ratio will be 0.713;
however, if the average closing price of WTNY is above $36.50 then the exchange 
ratio will be 0.557.

     Our  firm,  as part  of its  investment  banking  business,  is  frequently
involved in the  valuation  of  securities  as related to public  underwritings,
private placements, mergers, acquisitions, recapitalizations and other purposes.

     In connection  with our study for rendering this opinion,  we have reviewed
the Merger Agreement, FNH's financial results for fiscal years 1991 through 1995
as well as the first three quarters of 1996 and certain documents and
information we deem  relevant to our analysis.  We have also held discussions 
with senior management  of FNH for the  purpose of  reviewing  the  historical 
and  current operations of, and outlook for FNH, industry trends, the terms of
the proposed Merger, and related matters.

     We have also studied  published  financial  data  concerning  certain other
publicly  traded  banks  which  we deem  comparable  to FNH as  well as  certain
financial data relating to  acquisitions of other banks that we deem relevant or
comparable. In addition, we have reviewed 

                                       B-1

<PAGE>

   
Board of Directors
First National Bankshares, Inc.
Page 2
    

other published information, performed certain financial analyses and considered
other factors and information which we deem relevant.

     We have reviewed  similar  information  and data relating to WTNY including
its historical financial statements,  for fiscal years 1991 through 1995 as well
as the first three quarters of 1996.

     In rendering  this opinion,  we have relied upon the accuracy of the Merger
Agreement,  the  financial  information  listed  above,  and  other  information
furnished  to us  by  WTNY  and  FNH.  We  have  not  separately  verified  this
information  nor have we made an independent  evaluation of any of the assets or
liabilities of WTNY or FNH.

     Based upon the foregoing and upon current  market and economic  conditions,
we are of the opinion that, from a financial point of view, the consideration as
provided in the Agreement and Plan of Merger is fair to the stockholders of FNH.

                                Very truly yours,

                                 /s/ The Robinson-Humphrey Company, Inc.    
                                
                                THE ROBINSON-HUMPHREY COMPANY, INC.


                                       B-2

<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.

         Whitney's   Articles  of   Incorporation   and   By-laws   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 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 January 14, 
                           1997*.

             23.2          Consent of Deloitte & Touche LLP dated January 14, 
                           1997*.

             23.3          Consent of The Robinson-Humphrey Company, Inc. dated
                           January 13, 1997*.
    

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

                                      II-1

<PAGE>

              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 First National Bankshares, Inc.*

             99.2          Form of ESOP Voting Instruction Card.*

             -----------------------------
             *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 of 1933 (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.



                                      II-3


<PAGE>

                                   SIGNATURES

   
         Pursuant  to the  requirements  of the  Securities  Act  of  1933,  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 14th day of January, 1997.
    

                                      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.

  /s/ William L. Marks
- ------------------------      Chairman of the Board             January 14, 1997
      William L. Marks       and Chief Executive Officer


 /s/ R. King Milling 
- ------------------------      Director and President            January 14, 1997
     R. King Milling


- ------------------------   Executive Vice President and         January 14, 1997
    Edward B. Grimball        Chief Financial Officer
                           (Principal Financial Officer
                         and Principal Accounting Officer)

               *
- ----------------------------         Director                   January 14, 1997
 Harry J. Blumenthal, Jr.

               *
- ----------------------------         Director                   January 14, 1997
   Joel B. Bullard, Jr.

               *
- ----------------------------         Director                   January 14, 1997
       James M. Cain

               
- ----------------------------         Director                  January ___, 1997
   Angus R. Cooper, II

               *
- ----------------------------         Director                   January 14, 1997
   Robert H. Crosby, Jr.

               *
- ----------------------------         Director                   January 14, 1997
     Richard B. Crowell
    

                                       S-1


<PAGE>


   
               *
- ----------------------------         Director                  January 14, 1997
    Camille A. Cutrone


- ----------------------------         Director                 January ___, 1997
      William A. Hines

               *
- ----------------------------         Director                  January 14, 1997
      Robert E. Howson

               *
- ----------------------------         Director                  January 14, 1997
       John J. Kelly

               *
- ----------------------------         Director                  January 14, 1997
     E. James Kock, Jr.

               *
- ----------------------------         Director                  January 14, 1997
     Alfred S. Lippman

               *
- ----------------------------         Director                  January 14, 1997
      John G. Phillips

               *
- -----------------------------        Director                  January 14, 1997
     John K. Roberts, Jr.

               *
- -----------------------------        Director                  January 14, 1997
       W. P. Snyder III

               *
- -----------------------------        Director                  January 14, 1997
       Carroll W. Suggs


               *
- -----------------------------        Director                  January 14, 1997
       Warren K. Watters


*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 January 14, 1997*.

23.2      Consent of Deloitte & Touche LLP dated January 14, 1997*.

23.3      Consent of The Robinson-Humphrey Company, Inc. dated
          January 13, 1997*.
    

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 First National Bankshares, Inc.*

99.2      Form of ESOP Voting Instruction Card.*

- ----------------------
*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, 1996
(except with respect to the matter  discussed in the first paragraph of Note 16,
as to which the date is March 8, 1996) included in Whitney Holding Corporation's
Form 10-K for the year ended December 31, 1995, and of our report dated March 8,
1996 included in Whitney  Holding  Corporation's  Form 10-K/A for the year ended
December  31,  1995  and  to  all  references  to  our  Firm  included  in  this
registration statement.



                                 /s/ Arthur Andersen LLP



New Orleans, Louisiana
   January 14, 1997    



<PAGE>


                                                                    EXHIBIT 23.2


                          INDEPENDENT AUDITOR'S CONSENT


   
We consent to the incorporation by reference in this  Registration  Statement of
Whitney  Holding  Corporation on Form S-4/A (Amendment No.1) of our report 
dated February 3, 1996, incorporated  by reference from the Annual Report on 
Form 10-K of First National Bankshares, Inc. for the year ended December 31, 
1995 and to the reference to us under the heading "Experts" in the Proxy  
Statement-Prospectus, which is a part of this Registration Statement.
    

/s/ Deloitte & Touche LLP
DELOITTE & TOUCHE LLP
New Orleans, Louisiana
   January 14, 1997    


<PAGE>



                                                                    EXHIBIT 23.3


                 CONSENT OF THE ROBINSON-HUMPHREY COMPANY, INC.

We hereby consent to the inclusion in this Registration Statement on Form S-4 of
Whitney Holding Corporation of the form of our letter to the Board of Directors 
of First National  Bankshares,  Inc., included as Appendix B to the Proxy 
Statement-Prospectus that is part of the Registration Statement, and to the 
references to such letter and to our firm in such Proxy Statement-Prospectus. In
giving such consent we do not thereby admit that we come within the category of
persons whose consent is required under Section 7 of the Securities Act of 1933
or the rules and regulations of the Securities and Exchange Commission
thereunder.

The Robinson-Humphrey Company, Inc.

By:  /s/ Gerard J. O'Meara, Jr.
     ----------------------------
         Gerard J. O'Meara, Jr.
         Managing Director


   January 13, 1997    


<PAGE>


                                                                    EXHIBIT 99.1


                         FIRST NATIONAL BANKSHARES, INC.

           THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS

   
         The  undersigned  hereby  (a)  acknowledges  receipt  of the  Notice of
Special  Meeting  of  Shareholders  of  First  National  Bankshares,  Inc.  (the
"Company')   to  be  held  on  Tuesday,   February  18,  1997,   and  the  Proxy
Statement-Prospectus in connection therewith, (b) constitutes and appoints 
Roland J. Champagne,  Thomas H. Givens, M.D. and Samuel G. deGeneres, or any one
of them acting in the absence of the others, with full power of substitution, 
the lawful attorneys and proxies of the undersigned, (c) authorizes the proxies
to attend and represent the  undersigned  at the Special Meeting of Shareholders
of the Company, and at all adjournments and postponements  thereof,  and to vote
as specified below all of the shares of the Company's common stock registered in
the  name of the  undersigned  that the undersigned would be entitled to vote if
personally present, and (d) revokes any proxies heretofore given.

                  1.  Proposal to approve an Agreement  and Plan of Merger dated
         October 11,  1996,  as amended,  between  Whitney  Holding  Corporation
         ("Whitney"),  Whitney  National Bank,  the Company,  and First National
         Bank of Houma  ("FNBH")  and the  related  Joint  Agreement  of  Merger
         between the Company  and Whitney  (collectively,  the "Plan of Merger")
         pursuant to which, among other things: (a) the Company would merge into
         Whitney and each outstanding share of common stock of the Company would
         be  converted  into shares of Whitney  common  stock as  determined  in
         accordance  with the terms of the Plan of Merger and (b) FNBH would, in
         due  course,  merge  into  Whitney  National  Bank,  all as more  fully
         described in the accompanying Proxy Statement-Prospectus.
    

            ___ FOR                ___ AGAINST                  ___ ABSTAIN

                  2.  To transact such other business as may properly come 
         before the Special Meeting of Shareholders or any adjournment or 
         postponement thereof.

         THIS PROXY WHEN PROPERLY  EXECUTED WILL BE VOTED IN THE MANNER DIRECTED
HEREIN BY THE  UNDERSIGNED  STOCKHOLDER,  AND IN THE  DISCRETION  OF THE PERSONS
NAMED AS PROXIES ON ALL OTHER MATTERS WHICH MAY PROPERLY COME BEFORE THE SPECIAL
MEETING OR ANY  ADJOURNMENT OR  POSTPONEMENT  THEREOF.  IF NO DIRECTION IS MADE,
THIS PROXY WILL BE VOTED IN FAVOR OF PROPOSAL 1.

Dated:  _______________, 1997


         ----------------------------------
           (Signature of Shareholder)

         ----------------------------------
           (Signature of Joint Shareholder)


(Your signature on this proxy should  correspond with the name appearing on your
stock certificate. When signing as Executor,  Administrator,  Trustee, Guardian,
Attorney,  etc. please indicate your full title. If stock is held jointly,  each
joint owner must sign.)

PLEASE DATE, SIGN, AND MAIL THIS PROXY IN THE ENCLOSED ENVELOPE.

NO POSTAGE REQUIRED IF MAILED IN THE UNITED STATES.



<PAGE>


                                                                   EXHIBIT 99.2


                          FIRST NATIONAL BANK OF HOUMA
                     EMPLOYEE STOCK OWNERSHIP PLAN AND TRUST


         As a participant  in the First  National Bank of Houma  Employee  Stock
Ownership Plan and Trust (the "ESOP"),  you are entitled to vote shares of First
National Bankshares,  Inc. common stock, $2.50 par value, allocated to you under
the Plan in connection  with the proposed  merger of First National  Bankshares,
Inc. into Whitney Holding Corporation.  The enclosed Proxy  Statement-Prospectus
describes the terms and conditions of the proposed merger.

   
         To vote,  simply  complete the voting  instructions  (below) and return
them to HRC at the address indicated below. Your instructions will be held in 
confidence.  If your  instructions are not received on or before the later of
January 31, 1997 or five days after your receipt of this notice, shares of 
common stock allocated to you will not be voted.
    

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


                               VOTING INSTRUCTIONS

                 THESE INSTRUCTIONS ARE SOLICITED BY THE TRUSTEE
   OF THE FIRST NATIONAL BANK OF HOUMA EMPLOYEE STOCK OWNERSHIP PLAN AND TRUST

         The  undersigned,  a  participant  in the First  National Bank of Houma
Employee Stock Ownership Plan and Trust, hereby instructs the trustee to vote at
a special meeting of the shareholders of First National Bankshares, Inc. ("FNB")
   to be held on Tuesday, February 18, 1997, and at any and all adjournments    
and postponements thereof, as follows:

                  1.  Proposal to approve an Agreement  and Plan of Merger dated
         October 11,  1996,  as amended,  between  Whitney  Holding  Corporation
         ("Whitney"),  Whitney  National  Bank,  FNB, and First National Bank of
         Houma  ("FNBH")  and the related  Joint  Agreement of Merger of FNB and
         Whitney  (collectively,  the "Plan of Merger") pursuant to which, among
         other  things:  (a) FNB would merge into  Whitney and each  outstanding
         share of common stock of FNB would be converted  into shares of Whitney
         common stock as determined in accordance  with the terms of the Plan of
         Merger and (b) FNBH would, in due course,  merge into Whitney  National
         Bank,  all  as  more  fully   described  in  the   accompanying   Proxy
         Statement-Prospectus.

             ___ FOR                 ___ AGAINST                  ___ ABSTAIN

   
THESE INSTRUCTIONS WILL BE VOTED AS SPECIFIED. IF INSTRUCTIONS ARE NOT RECEIVED
ON OR BEFORE THE DATE SPECIFIED ABOVE, SHARES SUBJECT TO THESE INSTRUCTIONS WILL
NOT BE VOTED.
    


- --------------------------------       -----------------------------------------
Please print name                                     Signature

                                       -----------------------------------------
                                                      Date


                    PLEASE MARK, SIGN, DATE AND RETURN THESE
               INSTRUCTIONS PROMPTLY, USING THE ENCLOSED ENVELOPE TO:

   
                                       HRC
                         415 Lafayette Street, Suite 200
                          New Orleans, Louisiana 70130
                             Attention: FNBH Proxy
    

<PAGE>


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