TRUSTCO BANK CORP N Y
S-4, 2000-07-11
STATE COMMERCIAL BANKS
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   As filed with the Securities and Exchange Commission on July 11, 2000.
                                                      Registration No. 333-_____

================================================================================
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549
                ------------------------------------------------
                                    FORM S-4
                             REGISTRATION STATEMENT
                                      Under
                           THE SECURITIES ACT OF 1933
                ------------------------------------------------
                              TRUSTCO BANK CORP NY
               (Exact name of registrant specified in its charter)

             NEW YORK                      6712                  14-1630287
(State or other jurisdiction       (Primary Standard          (IRS employer
     of incorporation or       Industrial Classification  Identification Number)
        organization)                 Code Number)


          320 STATE STREET, SCHENECTADY, NEW YORK 12305 (518) 377-3311
          (Address, including zip code, and telephone number, including
             area code, of registrant's principal executive offices)

                                WILLIAM F. TERRY
                                    Secretary
                              TrustCo Bank Corp NY
                                320 State Street
                           Schenectady, New York 12305
                                 (518) 377-3311
    (Name, address, including zip code, and telephone number, including area
                           code, of agent for service)

                 ----------------------------------------------
                                    Copy to:
                             John K. Pruellage, Esq.
                          Lewis, Rice & Fingersh, L.C.
                         500 North Broadway, Suite 2000
                            St. Louis, Missouri 63102
                                 (314) 444-7600

                 ----------------------------------------------
                     APPROXIMATE DATE OF COMMENCEMENT OF THE
             PROPOSED SALE OF THE SECURITIES TO THE PUBLIC: AS SOON
     AS PRACTICABLE AFTER THE EFFECTIVE DATE OF THIS REGISTRATION STATEMENT.
               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, CHECK THE FOLLOWING BOX. |_|
<TABLE>
<CAPTION>

                         CALCULATION OF REGISTRATION FEE
-----------------------------------------------------------------------------------------------------------------------

<S>                             <C>                 <C>                   <C>                     <C>
       Title of each               Amount            Proposed maximum       Proposed maximum         Amount of
    class of securities             To be             Offering price       aggregate offering      registration
     to be registered            Registered(1)            Per Unit(2)             price(2)              fee(2)
-----------------------------------------------------------------------------------------------------------------------
       Common Stock,             17,203,827 shares       $  N/A                   $  N/A               $52,088.89
    par value $1.00 per
           share
-----------------------------------------------------------------------------------------------------------------------
</TABLE>

(1)      This amount is based upon the maximum number of shares of common stock
         of TrustCo Bank Corp NY ("TrustCo") issuable upon consummation of the
         exchange offer for shares of Hudson River Bancorp, Inc. ("Hudson")
         common stock based on the number of Hudson common shares outstanding as
         of June 8, 2000, as reported in Hudson's Annual Report on Form 10-K
         filed on June 20, 2000.
(2)      The registration fee has been computed pursuant to Rule 457(f)(1) under
         the Securities Act of 1933, as amended (the "1933 Act"), based on the
         average of the high and low prices for shares of common stock of
         Hudson as reported on the Nasdaq National Market on July 7, 2000
         ($11.46875) and the maximum number of such shares (15,360,560)
         that may be exchanged for the securities being registered.

         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 1933 ACT OR UNTIL THE REGISTRATION STATEMENT SHALL BECOME EFFECTIVE ON SUCH
DATE AS THE SECURITIES AND EXCHANGE COMMISSION ("SEC"), ACTING PURSUANT TO SAID
SECTION 8(A), MAY DETERMINE.

================================================================================
<PAGE>

THE INFORMATION IN THIS PROSPECTUS MAY BE CHANGED. WE MAY NOT SELL THESE
SECURITIES UNTIL THE REGISTRATION STATEMENT FILED WITH THE SEC IS EFFECTIVE.
THIS PROSPECTUS IS NOT AN OFFER TO SELL THESE SECURITIES, AND WE ARE NOT
SOLICITING AN OFFER TO BUY THESE SECURITIES, IN ANY STATE WHERE THE OFFER OR
SALE IS NOT PERMITTED.

            OFFER TO EXCHANGE EACH OUTSTANDING SHARE OF COMMON STOCK
                                       OF
                           HUDSON RIVER BANCORP, INC.
                                       FOR
                   SHARES OF TRUSTCO BANK CORP NY COMMON STOCK
                                     MADE BY
                              TRUSTCO BANK CORP NY

         The purpose of this offer is for TrustCo to acquire control of, and
ultimately the entire common equity interest in, Hudson. TrustCo intends,
promptly after consummation of this offer, to have Hudson consummate a merger
with TrustCo or a wholly owned subsidiary of TrustCo in which each outstanding
share of common stock of Hudson, (except for treasury shares and shares of
Hudson stock beneficially owned directly or indirectly by TrustCo for its own
account, including those acquired pursuant to this offer) would be converted
into TrustCo stock having a value of $14.

         We believe that our proposed business combination of TrustCo and Hudson
would be more favorable to you than the proposed merger of Hudson and Cohoes
Bancorp, Inc. announced on April 25, 2000. Under this offer, you will receive a
number of shares of TrustCo common stock that have an aggregate value of $14.00
for each share of Hudson stock held by you. Based on the closing price of Hudson
common stock on _____, 2000 the TrustCo offer of stock with a value of $14.00
would have represented a premium of $_____ per share, or approximately _____%,
over the closing price of Hudson common.

         Our obligation to exchange TrustCo common stock for Hudson common stock
is subject to the conditions listed under "THE EXCHANGE OFFER--Certain
Conditions of the Exchange Offer."

         The TrustCo common stock is listed on the Nasdaq National Market under
the symbol "TRST," the Hudson common stock is listed on the Nasdaq under the
symbol "HRBT", and the Cohoes common stock is listed on the Nasdaq under the
symbol "COHB".

         WE ARE NOT ASKING YOU FOR A PROXY, AND YOU ARE REQUESTED NOT TO SEND US
A PROXY. We are separately soliciting proxies from Hudson stockholders to vote
against the proposed Hudson-Cohoes merger. Such solicitation of proxies is being
made pursuant to proxy solicitation materials which are being mailed separately.

--------------------------------------------------------------------------------
         NEITHER THE SEC NOR ANY STATE SECURITIES COMMISSION HAS APPROVED OR
DISAPPROVED THE SECURITIES TO BE ISSUED UNDER THIS PROSPECTUS OR DETERMINED IF
THIS PROSPECTUS IS ACCURATE OR ADEQUATE. ANY REPRESENTATION TO THE CONTRARY IS A
CRIMINAL OFFENSE.

         THE SECURITIES TRUSTCO IS OFFERING THROUGH THIS DOCUMENT ARE NOT
SAVINGS OR DEPOSIT ACCOUNTS OR OTHER OBLIGATIONS OF ANY BANK OR SAVINGS
ASSOCIATION, AND THEY ARE NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE
CORPORATION OR ANY OTHER GOVERNMENTAL AGENCY.
--------------------------------------------------------------------------------
<PAGE>

                    The Information Agent for this offer is:

                    Georgeson Shareholder Communications Inc.
                           17 State Street, 10th Floor
                            New York, New York 10004
                            Toll Free 1-800-223-2064


            The date of this Prospectus is __________________, 2000.

























                                       ii

<PAGE>

                              TABLE OF CONTENTS
<TABLE>
<CAPTION>
<S>                                                                                                           <C>
                                                                                                              Page


                                                                                                               ----
QUESTIONS AND ANSWERS ABOUT THE PROPOSED ACQUISITION..............................................................1


WHERE YOU CAN FIND MORE INFORMATION...............................................................................5


PROSPECTUS SUMMARY................................................................................................7

         The TrustCo Exchange Offer (Page 28).....................................................................7
         Information about TrustCo and Hudson (Pages 14 and 15)...................................................7
         Reasons for the TrustCo Exchange Offer (Page 26).........................................................7
         Comparative Market Price Information.....................................................................8
         Dividend Policy of TrustCo (Page 13).....................................................................9
         The Offer (Page 28)......................................................................................9
                  We Are Offering to Exchange Shares of TrustCo Stock Valued at $14.00 for Each
                  Share of Hudson Stock...........................................................................9
                  Our Offer is Subject to Certain Conditions.....................................................10
                  Our Offer is Currently Scheduled to Expire on _______, 2000....................................10
                  Our Offer May be Extended, Terminated or Amended...............................................10
                  Tendered Shares May be Withdrawn at any Time Prior to the Exchange of Such Shares..............11
                  We May Provide a Subsequent Offering Period....................................................11
                  Procedure for Tendering Shares.................................................................11
         No Appraisal Rights in Connection with the Offer (Page 68)..............................................12
         TrustCo Will Account for the Merger Using the "Purchase"Method (Page 45)................................12
         Forward-Looking Statements May Prove Inaccurate (Page 21)...............................................12
         Offer to Acquire Cohoes (Page 27).......................................................................12

SELECTED HISTORICAL AND PRO FORMA PER SHARE DATA.................................................................13


SELECTED HISTORICAL FINANCIAL INFORMATION FOR TRUSTCO............................................................15


SELECTED HISTORICAL FINANCIAL INFORMATION OF HUDSON..............................................................16


SELECTED HISTORICAL FINANCIAL INFORMATION OF COHOES..............................................................18


SELECTED PRO FORMA COMBINED FINANCIAL INFORMATION................................................................20


RISK FACTORS.....................................................................................................24

         If we do not successfully integrate TrustCo's and Hudson's operations, the anticipated
              benefits of the acquisition of Hudson may not be fully realized....................................24
         There is no guarantee that we will achieve our projected cost savings of approximately
              $15 million pre-tax................................................................................24
         There is no guarantee that we will not suffer net revenue run-off as a result of integrating
              Hudson's businesses into ours......................................................................25
         There can be no assurance that the integration process will not be adversely affected if
              Hudson's senior executive management or other employees are uncooperative in that process..........25
         Your board of directors may delay satisfaction of certain conditions to our offer.......................25

BACKGROUND OF THE EXCHANGE OFFER.................................................................................26

                                      iii
<PAGE>

         Past Contacts...........................................................................................26
         Purpose of the Exchange Offer; the TrustCo-Hudson Merger................................................26
         Benefits of the Transaction.............................................................................26
         Offer to Acquire Cohoes.................................................................................27

THE EXCHANGE OFFER...............................................................................................28

         General.................................................................................................28
         Extension, Termination and Amendment....................................................................30
         Exchange of Shares; Exchange Consideration..............................................................30
         Cash in Lieu of Fractional Shares of TrustCo Common Stock...............................................31
         Withdrawal Rights.......................................................................................31
         Procedure for Tendering Shares..........................................................................31
         Certain Federal Income Tax Consequences.................................................................33
                  Tax Consequences to Hudson Shareholders if the Exchange Offer
                  and the TrustCo-Hudson Merger Qualify as a Reorganization......................................34
                  Tax Consequences to Hudson Shareholders if the Exchange Offer
                  and the TrustCo-Hudson Merger Do Not Qualify as a Reorganization...............................35
         Effect of Exchange Offer on Market for Shares...........................................................36
         Resale of TrustCo Common Stock..........................................................................36
         Certain Legal Matters...................................................................................36
                  General........................................................................................36
                  Federal Regulatory Matters.....................................................................37
                  Anticipated Approvals..........................................................................38
         Certain Conditions of the Exchange Offer................................................................38
                  Minimum Tender Condition.......................................................................38
                  Regulatory Approval Condition..................................................................39
                  Removal of Impediments Condition...............................................................39
                  TrustCo Stockholder Approval Condition.........................................................41
                  Tax Opinion....................................................................................41
                  Material Adverse Effect Condition..............................................................41
                  Termination of the Hudson-Cohoes Merger Agreement..............................................42
                  Termination of the Hudson-Cohoes Option Agreement..............................................42
                  Stockholder Disapproval of the Hudson-Cohoes Merger............................................43
                  Definitive TrustCo-Hudson Merger Agreement.....................................................44
                  Effective Registration Statement...............................................................44
         Fees and Expenses.......................................................................................44
         Accounting Treatment....................................................................................44
         Nasdaq Listing..........................................................................................44
         Source of Funds.........................................................................................45
         Treatment of Hudson Stock Options.......................................................................45

RECENT DEVELOPMENTS..............................................................................................46


UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION...............................................................47

         Unaudited Pro Forma Condensed Combined Balance Sheet at March 31, 2000..................................49
                  TrustCo and Hudson Combined....................................................................49
                  TrustCo and Cohoes Combined....................................................................50
                  TrustCo, Hudson and Cohoes Combined............................................................51
         Unaudited Pro Forma Condensed Combined Statements of Income for the 12 Months Ended December 31, 1999...52
                  TrustCo and Hudson Combined....................................................................52

                                       iv
<PAGE>

                  TrustCo and Cohoes Combined....................................................................53
                  TrustCo, Hudson and Cohoes Combined............................................................54
         Unaudited Pro Forma Condensed Combined Statements of Income for the 3 Months Ended March 31, 2000.......55
                  TrustCo and Hudson Combined....................................................................55
                  TrustCo and Cohoes Combined....................................................................56
                  TrustCo, Hudson and Cohoes Combined............................................................57
         Summary of Purchase Accounting Adjustments March 31, 2000...............................................58

DESCRIPTION OF TRUSTCO'S CAPITAL STOCK`..........................................................................62

         General.................................................................................................62
         Common Stock............................................................................................62
                  Voting Rights..................................................................................62
                  Dividend Rights................................................................................62
                  Liquidation Rights.............................................................................62
                  Other Characteristics..........................................................................62
                  Transfer Agent.................................................................................62
         Preferred Stock.........................................................................................63

DESCRIPTION OF HUDSON'S CAPITAL STOCK............................................................................63

         General.................................................................................................63
         Common Stock............................................................................................63
         Preferred Stock.........................................................................................63

COMPARISON OF SHAREHOLDER RIGHTS.................................................................................63

         Stockholder Vote Required for Certain Transactions......................................................64
                  Business Combinations..........................................................................64
                  Removal of Directors...........................................................................65
                  Amendments to Certificate of Incorporation and Bylaws..........................................65
                  Voting Rights..................................................................................66
         Special Meeting of Stockholders; Stockholder Action by Written Consent..................................67
         Dissenters'Rights.......................................................................................67
         Anti-Takeover Statutes and Provisions...................................................................68
         Indemnification.........................................................................................69
         Limitation of Liability of Directors....................................................................70
         Consideration of Non-Stockholder Interests..............................................................70

LEGAL OPINION....................................................................................................71


EXPERTS..........................................................................................................71

</TABLE>

         This document incorporates important business and financial information
about TrustCo, Hudson and Cohoes from documents filed with the SEC that have not
been included in or delivered with this document. This information is available
at the Internet web site the SEC maintains at http://www.sec.gov, as well as
from other sources. See "WHERE YOU CAN FIND MORE INFORMATION."

         You also may request copies of these documents from us, without charge,
upon written or oral request to William F. Terry, TrustCo Bank Corp NY, 320
State Street, Schenectady, New York, 12305, (518) 377-3311.


                                       v
<PAGE>

         In order to receive timely delivery of the documents, you must make
your requests no later than __________, 2000.




























                                       vi
<PAGE>

QUESTIONS AND ANSWERS ABOUT THE PROPOSED ACQUISITION

Q:       WHAT IS TRUSTCO PROPOSING?

A:       We are proposing to acquire control of, and ultimately the entire
         common equity interest in, Hudson by first offering to exchange all
         outstanding shares of Hudson stock for shares of TrustCo stock. Second,
         we intend, promptly after completion of the offer, to merge Hudson with
         TrustCo or a wholly owned subsidiary of TrustCo. As a result of the
         TrustCo-Hudson merger, each share of Hudson stock which has not been
         exchanged or accepted for exchange would be converted into the same
         number of shares of TrustCo stock per share of Hudson common stock as
         is paid in the offer.

Q:       WHAT WILL I RECEIVE IN EXCHANGE FOR MY SHARES?

A:       For each share of Hudson stock validly tendered and not properly
         withdrawn by you, you will receive such number of shares of TrustCo
         stock which have an aggregate value equal to $14.00 (such number of
         shares to be determined by the average closing price of the TrustCo
         stock on the Nasdaq over a 20-day period ending 5 days before the
         closing on our offer). You will not receive any fractional shares of
         TrustCo stock. Instead, you will receive cash in an amount equal to the
         average closing price of one share of TrustCo stock on the Nasdaq over
         such 20-day period multiplied by the fractional share of TrustCo stock
         you are entitled to receive.

Q:       WHY IS A TRANSACTION WITH TRUSTCO BETTER THAN THE PROPOSED MERGER OF
         HUDSON AND COHOES?

A:       The TrustCo offer is $14.00 of TrustCo stock for each share of Hudson
         stock. In the proposed Hudson-Cohoes merger, you would not receive any
         consideration or other payment. Based on the closing price of Hudson
         stock on _____, 2000, the TrustCo offer represents a premium of $_____
         per share of Hudson stock, or approximately _____%, over closing price
         on that day.

         In addition, we believe that our proposed offer represents an
         opportunity to enhance value for Hudson stockholders by providing,
         among other things:

         o        a significant premium over the price levels at which we
                  believe Hudson stock would be trading in the absence of our
                  offer;

         o        better long-term growth prospects;

         o        improved cash dividends; and

         o        a superior performance on TrustCo stock (for example, TrustCo
                  has realized a 23% average annual total return for the three
                  year period ended December 31, 1999).

Q:       HOW DO I PARTICIPATE IN YOUR OFFER?

A:       To tender your shares of Hudson stock, you should do the following.

         o        If you hold shares in your own name, complete and sign the
                  enclosed letter of transmittal and return it with your share
                  certificate to ChaseMellon Shareholder Services, the exchange
                  agent for the offer, at the address specified on the back
                  cover page of this Prospectus before the expiration date of
                  the offer.


                                       1


<PAGE>

         o        If you hold your shares in "street name" through a broker,
                  instruct your broker to tender your shares before the
                  expiration date of the offer.

Q:       WILL I CONTINUE TO RECEIVE DIVIDENDS AND HAVE VOTING RIGHTS WITH
         RESPECT TO HUDSON SHARES THAT I TENDER TO YOU?

A:       Yes. Until we accept your shares of Hudson stock for exchange at the
         completion of our offer, you will be entitled to receive any dividends
         paid on your tendered shares of Hudson stock and you will continue to
         have the right to vote your tendered shares. Once we complete our offer
         and exchange all shares of Hudson stock tendered by you in the offer
         and not withdrawn, you will own TrustCo stock and will have all
         dividend and voting rights of a TrustCo stockholder.

Q:       WHEN AND HOW CAN I WITHDRAW TENDERED SHARES?

A:       Shares of Hudson stock tendered in the offer may be withdrawn by you at
         any time after _________, 2000 and prior to the exchange of your shares
         for TrustCo stock. Your withdrawal will only be effective if the
         exchange agent receives a written notice of withdrawal at the address
         on the back cover of this Prospectus, or by facsimile at (___)
         ___-____. The written notice must contain your name, address, social
         security number, number of shares of Hudson stock to be withdrawn, the
         certificate number or numbers for such shares and the name of the
         registered holder of the shares, if different from the person who
         tendered the shares. All signatures on the notice of withdrawal must be
         guaranteed by a financial institution in accordance with the procedures
         set forth in this Prospectus under "THE EXCHANGE OFFER--Withdrawal
         Rights."

Q:       HOW WOULD YOU GO ABOUT COMPLETING YOUR PROPOSED ACQUISITION?

A:       We have taken several steps in furtherance of our offer, including the
         following.

         o        We have been actively soliciting Hudson stockholders to vote
                  against the proposed Hudson-Cohoes merger.

         o        We expect to commence our offer in the next day or so by
                  mailing this Prospectus and the related letter of transmittal
                  to Hudson stockholders.

         o        We expect to file within the next several days applications
                  with the Federal Reserve Board to obtain the regulatory
                  approvals necessary to complete the offer and a TrustCo-Hudson
                  merger.

         o        We intend to file with the SEC proxy materials to be used for
                  soliciting the approval by our stockholders of the issuance of
                  our shares in the offer and a TrustCo-Hudson merger.

Q:       HOW LONG WILL IT TAKE TO COMPLETE YOUR PROPOSED OFFER?

A:       A condition to the Hudson-Cohoes merger is that the Hudson stockholders
         approve the merger. If the Hudson stockholders do not approve the
         proposed Hudson-Cohoes merger, the timing of completion of this offer
         will depend on when the Hudson-Cohoes merger agreement is terminated.
         Both Hudson and Cohoes have the right to terminate the Hudson-Cohoes
         merger agreement if stockholder approval is not obtained. If either
         Cohoes or Hudson terminates the merger agreement promptly after the
         Hudson stockholders fail to approve the Hudson-Cohoes merger, the offer
         could close in the later part of the first quarter of 2001. If the
         Hudson-Cohoes merger agreement is not terminated until February 28,
         2001, which is the earliest date that Cohoes or Hudson can otherwise
         terminate the agreement, the offer could close in second quarter of
         2001. These schedules assume that the Hudson board of directors
         promptly cooperates with us following termination of


                                       2
<PAGE>

         the Hudson-Cohoes merger agreement. However, the Hudson board may try
         to delay our offer. By tendering your shares, you will be sending a
         message to Hudson management and the Hudson board that you want Hudson
         to participate in a combination with us.

Q:       WHAT ARE THE CONDITIONS TO YOUR OFFER?

A:       Our offer is subject to several conditions, including:

         o        tender of enough shares of Hudson stock so that, after
                  completion of our offer, we own at least a majority of the
                  outstanding shares of Hudson stock (on a fully diluted basis);

         o        the stockholders of Hudson not having approved the merger of
                  Hudson and Cohoes;

         o        the valid termination of the Hudson-Cohoes merger agreement;

         o        the valid termination of the stock option agreement between
                  Hudson and Cohoes dated as of April 25, 2000 and the surrender
                  to Hudson of the option granted to Cohoes under that
                  agreement;

         o        the execution of a definitive merger agreement between TrustCo
                  and Hudson;

         o        the receipt of all required regulatory approvals;

         o        the effectiveness of this Registration Statement;

         o        our being satisfied that the provisions of Section 203 of the
                  Delaware General Corporation Law do not apply to our offer and
                  the proposed TrustCo-Hudson merger; and

         o        the approval by our stockholders of the issuance of TrustCo
                  stock in our offer.

         These conditions and other conditions to our offer are discussed in
         this Prospectus under "THE EXCHANGE OFFER--Certain Conditions of the
         Exchange Offer."

Q:       WILL I BE TAXED ON THE TRUSTCO SHARES THAT I RECEIVE?

A:       We expect that you will not be taxed on the shares of TrustCo stock
         that you receive, except to the extent that you receive cash in lieu of
         fractional shares. In general, however, we expect that, if you realize
         a gain on the exchange, you will be required to recognize gain up to
         the amount of cash that you receive, but that, if you realize a loss on
         the exchange, you will not be permitted to recognize such loss.

Q:       DO THE STATEMENTS ON THE COVER PAGE REGARDING THIS PROSPECTUS BEING
         INCOMPLETE AND THE REGISTRATION STATEMENT FILED WITH THE SEC NOT YET
         BEING EFFECTIVE MEAN THAT THE OFFER HAS NOT COMMENCED?

A:       No. Completion of this Prospectus and effectiveness of the Registration
         Statement are not necessary for the offer to commence. The SEC recently
         changed its rules to permit exchange offers to begin before the related
         registration statement has become effective, and we are taking
         advantage of the rule changes with the goal of combining TrustCo and
         Hudson faster than similar combinations could previously have been
         accomplished. We cannot, however, accept for exchange any shares of
         Hudson stock tendered in the offer until the Registration Statement is
         declared effective by the SEC and the other conditions to our offer
         have been satisfied or, where permissible, waived. The offer will
         commence when we mail this Prospectus and letter of transmittal to
         Hudson stockholders.

                                       3
<PAGE>

Q:       WHERE CAN I FIND OUT MORE INFORMATION ABOUT TRUSTCO AND HUDSON?

A:       You can find out information about TrustCo and Hudson from various
         sources described under "WHERE YOU CAN FIND MORE INFORMATION."

Q:       WHO CAN I CALL WITH QUESTIONS ABOUT THE OFFER?

A:       You can contact our information agent, Georgeson Shareholder
         Communications Inc. toll-free at 1-800-223-2064.




















                                       4
<PAGE>

WHERE YOU CAN FIND MORE INFORMATION

         TrustCo and Hudson file annual, quarterly and special reports, proxy
statements and other information with the SEC under the Securities Exchange Act
of 1934, as amended (the "1934 Act"). You may read and copy this information at
the following locations of the SEC:

Public Reference Room   North East Regional Office  Midwest Regional Office
450 Fifth Street, N.W.  7 World Trade Center        500 West Madison Street
Room 1024               Suite 1300                  Suite 1400
Washington, D.C. 20549  New York, New York 10048    Chicago, Illinois 60661-2511

         You may also obtain copies of this information by mail from the Public
Reference Section of the SEC, 450 Fifth Street, N.W., Room 1024, Washington,
D.C. 20549, at prescribed rates.

         The SEC also maintains an Internet world wide web site that contains
reports, proxy statements and other information about issuers, like TrustCo and
Hudson, who file electronically with the SEC. The address of that site is
HTTP://WWW.SEC.GOV.

         We filed a Registration Statement on Form S-4 to register with the SEC
the shares of TrustCo common stock to be issued pursuant to our offer. This
Prospectus is a part of that Registration Statement. As allowed by SEC rules,
this Prospectus does not contain all the information you can find in the
Registration Statement or the exhibits to the Registration Statement. In
addition, on the day that we commence the offer we will file with the SEC a
statement on Schedule TO pursuant to rule 14d-3 under the 1934 Act to furnish
certain information about our offer. You may obtain copies of the Form S-4 or,
once filed, the Schedule TO (and any amendments to those documents) in the
manner described above.

         The SEC allows us to "incorporate by reference" information into this
Prospectus, which means that we can disclose important information to you by
referring you to another document filed separately with the SEC. The information
incorporated by reference is deemed to be part of this Prospectus, except for
any information superseded by information contained directly in this Prospectus.
This Prospectus incorporates by reference the documents set forth below that
TrustCo and Hudson have previously filed with the SEC. These documents contain
important information about TrustCo and Hudson and their financial condition.

         The following documents listed below that TrustCo and Hudson have
previously filed with the SEC are incorporated by reference:

TRUSTCO SEC FILINGS                             PERIOD

Annual Report on Form 10-K                      Year ended December 31, 1999, as
                                                filed on March 24, 2000

Quarterly Report on Form 10-Q                   Quarter ended March 31, 2000, as
                                                filed on May 9, 2000.

The description of TrustCo common stock
set forth in TrustCo's registration
statements filed by TrustCo pursuant to
Section 12 of the 1934 Act, including
any amendment or report filed for
purposes of updating any such
description.


                                        5
<PAGE>

The portions of TrustCo's proxy                 Filed on May 3, 2000
statement for the annual meeting of
stockholders held on May 15, 2000 that
have been incorporated by reference in
the 1999 TrustCo Form 10-K.

Current Reports on Form 8-K                     Filed on:
                                                o  June 7, 2000
                                                o  May 16, 2000
                                                o  April 18, 2000

HUDSON SEC FILINGS                              PERIOD

Annual Report on Form 10-K                      Year ended March 31, 2000, as
                                                filed on June 20, 2000

The description of Hudson common stock          Filed on May 4, 1998
set forth in Hudson' registration
statement on Form 8-A filed pursuant to
Section 12 of the 1934 Act, including
any amendment or report filed with the
SEC for the purpose of updating this
description.

Current Reports on Form 8-K                     Filed on:
                                                o  May 5, 2000

         All documents filed by TrustCo and Hudson pursuant to Section 13(a),
13(c), 14 or 15(d) of the 1934 Act from the date of this Prospectus to the date
that shares of Hudson stock are accepted for exchange pursuant to our offer (or
the date that our offer is terminated) shall also be deemed to be incorporated
herein by reference.

         DOCUMENTS INCORPORATED BY REFERENCE ARE AVAILABLE FROM US WITHOUT
CHARGE UPON REQUEST TO WILLIAM F. TERRY, TRUSTCO BANK CORP NY, 320 STATE STREET,
SCHENECTADY, NEW YORK 12305, (518) 377-3311. IN ORDER TO ENSURE TIMELY DELIVERY,
ANY REQUEST SHOULD BE SUBMITTED NO LATER THAN __________, 2000. IF YOU REQUEST
ANY INCORPORATED DOCUMENTS FROM US, WE WILL MAIL THEM TO YOU BY FIRST CLASS
MAIL, OR ANOTHER EQUALLY PROMPT MEANS (INCLUDING E-MAIL), WITHIN ONE BUSINESS
DAY AFTER WE RECEIVE YOUR REQUEST.

         We have not authorized anyone to give any information or make any
representation about our offer that is different from, or in addition to, that
contained in this Prospectus or in any of the materials that we have
incorporated into this Prospectus. Therefore, if anyone does give you
information of this sort, you should not rely on it. If you are in a
jurisdiction where offers to exchange or sell, or solicitations of offers to
exchange or purchase, the securities offered by this document are unlawful, or
if you are a person to whom it is unlawful to direct these types of activities,
then the offer presented in this document does not extend to you. The
information contained in this document speaks only as of the date of this
document unless the information specifically indicates that another date
applies.

                                       6
<PAGE>

                               PROSPECTUS SUMMARY

         THIS BRIEF SUMMARY DOES NOT CONTAIN ALL OF THE INFORMATION THAT SHOULD
BE IMPORTANT TO YOU. YOU SHOULD CAREFULLY READ THIS ENTIRE DOCUMENT AND THE
OTHER DOCUMENTS TO WHICH THIS DOCUMENT REFERS YOU TO FULLY UNDERSTAND THE OFFER.
SEE "WHERE YOU CAN FIND MORE INFORMATION."

THE TRUSTCO EXCHANGE OFFER (PAGE 28)

         We are proposing a business combination of TrustCo and Hudson. For each
share of Hudson stock tendered and not withdrawn by you, we are offering to
exchange shares of TrustCo common stock which have a market value equal to
$14.00 (the number of shares to be determined by the average closing price of
TrustCo stock on the Nasdaq over a 20-day period ending 5 days before the
closing on our offer. We intend, promptly after completion of the offer, to
merge Hudson with TrustCo or a wholly owned subsidiary of TrustCo. Each share of
Hudson stock that has not been exchanged or accepted for exchange in the offer
would be converted into the same number of shares of TrustCo stock as is paid in
the offer.

INFORMATION ABOUT TRUSTCO AND HUDSON (PAGES 14 AND 15)

         TRUSTCO BANK CORP NY, 320 State Street, Schenectady, New York 12305
(518) 377-3311.

         TrustCo is a New York corporation and a one-bank holding company
registered under the Bank Holding Company Act of 1956, headquartered in
Schenectady, New York. TrustCo provides a full range of financial and fiduciary
services through its bank subsidiary, Trustco Bank, National Association, which
has 53 banking offices in the upstate New York area. As of March 31, 2000,
TrustCo had, on a consolidated basis, total assets of approximately $2.4
billion, total deposits of approximately $2.0 billion and total shareholders'
equity of approximately $171 million. On February 21, 2000, TrustCo entered into
an agreement to acquire Landmark Financial Corp., Canajoharie, New York, for
$21.00 per share, cash. As of March 31, 2000, Landmark had, on a consolidated
basis, total assets of approximately $25.4 million, total deposits of
approximately $21.9 million and total shareholders' equity of approximately $1.9
million. Landmark is the savings and loan holding company parent of Landmark
Community Bank, a federal savings bank, which operates one office in
Canajoharie, New York.

         HUDSON RIVER BANCORP, INC. One Hudson City Centre, Hudson, New York
12534 (518) 828-4600

         Hudson is a savings and loan holding company whose primary subsidiary
is Hudson River Bank & Trust Company, a New York-chartered savings bank that
operates 17 banking offices throughout New York's Capital Region. At March 31,
2000, Hudson had, on a consolidated basis, total assets of approximately $1.1
billion, total deposits of approximately $749 million and total shareholders'
equity of approximately $201 million.

REASONS FOR THE TRUSTCO EXCHANGE OFFER (PAGE 26)

         We believe that our acquisition of Hudson represents a compelling
opportunity to enhance value for both Hudson and TrustCo stockholders. Among the
benefits that we believe Hudson stockholders would obtain from the combination
of TrustCo and Hudson are the following:

o        SIGNIFICANT PREMIUM. Based on __________, 2000 closing price of
         Hudson's stock on the Nasdaq, our offer represents a premium of $____,
         or approximately ___% over the value Hudson common stock on that date.


                                       7
<PAGE>

o        BETTER LONG-TERM GROWTH PROSPECTS . We believe that a combination of
         TrustCo and Hudson has better long-term growth prospects than the
         proposed Hudson-Cohoes merger, potentially resulting in increased
         shareholder value over the long-term.

o        IMPROVED CASH DIVIDENDS. Based on TrustCo's current annual dividend of
         $0.60 per share, Hudson stockholders would receive a pro forma
         equivalent dividend of $0.76, or 280% above the Hudson current annual
         dividend rate.

o        SUPERIOR PERFORMANCE. Based on past performance of TrustCo stock
         (TrustCo has realized more than a 23% average annual total return for
         each of the three-year, five-year and seven-year periods ended December
         31, 1999), we believe that Hudson stockholders will realize superior
         performance over Hudson common stock.

         The following table lists the current annual dividends for TrustCo and
Hudson, and the pro forma equivalent annual dividend per Hudson share for the
proposed combination of TrustCo and Hudson (based on our current annual dividend
and the exchange ratio in our offer).

                                                        TrustCo Proposal
   Current Annualized        Current Annualized       Pro Forma Equivalent
   Dividend - Trustco         Dividend - Hudson         Per Hudson Share
   ------------------         -----------------         ----------------
          $0.60                     $0.20                     $0.76

COMPARATIVE MARKET PRICE INFORMATION

         TrustCo, Hudson and Cohoes common stock trade on the Nasdaq under the
symbols "TRST", "HRBT" and "COHB", respectively.

         The following table lists the closing prices on the Nasdaq of the stock
of TrustCo and Hudson, the value of the TrustCo offer per share of Hudson stock,
and the estimated number of shares of TrustCo stock to be exchanged for each
share of Hudson stock, on June 23, 2000, the last trading day before we
announced the offer, and on __________, 2000, the last trading day before the
date of this Prospectus. Because the value of the TrustCo stock you will receive
per share of Hudson stock is fixed at $14.00, the number of shares of TrustCo
stock you will receive will fluctuate as the market price of TrustCo stock
changes.

                                                Value of         Estimated
                                                 Hudson            Number
                                                 Common          of Shares
                                                  Stock          of TrustCo
                                                  Under            Common
                                                 TrustCo          Stock To
                      Trustco       Hudson        Offer         be Received
                      -------       ------        -----         -----------
June 23, 2000         $10.875      $10.375       $14.00            1.287
_________, 2000       $______      $______       $14.00            _____


                                       8
<PAGE>

         The table below sets forth the high and low last sale prices for
TrustCo's, and Hudson's common stock for the periods indicated, as reported on
Nasdaq. TrustCo's fiscal year ends December 31 and Hudson's fiscal year ends
March 31.

                                        TRUSTCO COMMON           HUDSON COMMON*
                                        ---------------------------------------
     YEAR            QUARTER ENDED      HIGH        LOW         HIGH        LOW
     ----            -------------      ----        ---         ----        ---
     1998       March 31               $12.88      $10.60        --          --
                June 30                 12.99      11.20         --          --
                September 30            13.59      10.82       13.75        9.38
                December 31             15.00      11.41       11.75        8.75

     1999       March 31                15.00      12.47       12.00       10.06
                June 30                 14.50      12.50       11.75        9.88
                September 30            15.28      12.22       12.13       10.75
                December 31             15.44      12.75       11.25        9.75

     2000       March 31                13.75      10.25       10.56        9.50
                June 30
                September 30
                (though      _________,
                2000)

*        Hudson stock started trading in July 1998.

         You can obtain current stock price quotations for TrustCo and Hudson
from a newspaper, on the Internet or by calling your broker.

DIVIDEND POLICY OF TRUSTCO (PAGE 13)

         The holders of TrustCo stock receive dividends if and when declared by
the TrustCo board of directors out of legally available funds. Our past practice
has been to pay dividends at a rate of 65% to 85% of operating earnings. For
each of the past two fiscal quarters, we have paid a quarterly cash dividend of
$0.15 per share. Following completion of the offer and a TrustCo-Hudson merger,
we expect to continue paying quarterly cash dividends on a basis consistent with
our past practice. However, the declaration and payment of dividends will depend
upon business conditions, operating results, capital and reserve requirements
and consideration of other relevant factors. No assurance can be given that we
will continue to pay dividends on our stock in the future.

THE OFFER (PAGE 28)

         WE ARE OFFERING TO EXCHANGE SHARES OF TRUSTCO STOCK VALUED AT $14.00
FOR EACH SHARE OF HUDSON STOCK

         We are offering, upon the terms and subject to the conditions set forth
in this Prospectus and in the letter of transmittal, to exchange shares of
TrustCo stock with an aggregate value of $14.00 for each outstanding share of
Hudson stock that is validly tendered on or before the expiration date and not
properly withdrawn. The term "expiration date" means 12:00 midnight, New York
time, on __________, 2000, unless we extend the period of time for which this
offer is open, in which case the term "expiration date" means the latest time
and date on which the offer, as so extended, expires. We are not making any
assurance that we will exercise our right to extend our offer, although we
currently intend to do so until all conditions have been satisfied or waived.


                                       9
<PAGE>

         OUR OFFER IS SUBJECT TO CERTAIN CONDITIONS

         Our offer to exchange shares of TrustCo stock for shares of Hudson
stock is subject to several conditions referred to under "THE EXCHANGE
OFFER--Certain Conditions of the Exchange Offer," including the following
conditions:

         o        tender of enough shares of Hudson stock so that, after
                  completion of the offer, we own at least a majority of the
                  shares of Hudson stock (on a fully diluted basis);

         o        the stockholders of Hudson not having approved the merger of
                  Hudson and Cohoes;

         o        the valid termination of the proposed Hudson-Cohoes merger
                  agreement;

         o        the valid termination of the Hudson-Cohoes option agreement
                  and the surrender to Hudson of the option granted to Hudson;

         o        the execution of a definitive merger agreement between TrustCo
                  and Hudson;

         o        the receipt of all required regulatory approvals;

         o        the effectiveness of this Registration Statement;

         o        our being satisfied that the provisions of Section 203 of the
                  Delaware General Corporation Law do not apply to our offer and
                  the proposed TrustCo-Hudson merger; and

         o        the approval by our stockholders of the issuance of our stock
                  in the offer.

         OUR OFFER IS CURRENTLY SCHEDULED TO EXPIRE ON _______, 2000

         Our offer is currently scheduled to expire on __________, 2000.
However, we currently intend to extend our offer from time to time as necessary
until all the conditions to the offer have been satisfied or waived. See "THE
EXCHANGE OFFER--Extension, Termination and Amendment."

         OUR OFFER MAY BE EXTENDED, TERMINATED OR AMENDED

         We expressly reserve the right, in our sole discretion, at any time or
from time to time, to extend the period of time during which our offer remains
open, and we can do so by giving oral or written notice of such extension to the
exchange agent. If we decide to extend our offer, we will make an announcement
to that effect no later than 9:00 A.M., New York time, on the next business day
after the previously scheduled expiration date. We are not making any assurance
that we will exercise our right to extend our offer, although we currently
intend to do so until all conditions have been satisfied or waived. During any
such extension, all shares of Hudson stock previously tendered and not withdrawn
will remain subject to the offer, subject to your right to withdraw your Hudson
shares.

         Subject to the SEC's applicable rules and regulations, we also reserve
the right, in our sole discretion, at any time or from time to time:

         o        to delay our acceptance for exchange or our exchange of any
                  shares of Hudson stock pursuant to our offer, or to terminate
                  our offer and not accept for exchange or exchange any shares
                  of Hudson stock not previously accepted for exchange or
                  exchanged, upon the failure of any of the conditions of the
                  offer to be satisfied prior to the expiration date, or upon
                  the failure of the condition relating


                                       10
<PAGE>

                  to regulatory approvals to be satisfied at any time after the
                  expiration date regardless of whether we previously accepted
                  for exchange or exchanged any shares of Hudson stock; and

         o        to waive any condition (other than the conditions relating to
                  the TrustCo stockholder approval, regulatory approvals and the
                  effectiveness of the Registration Statement for the shares of
                  TrustCo stock to be issued in our offer) or otherwise to amend
                  the offer in any respect, by giving oral or written notice of
                  such delay, termination or amendment to the exchange agent and
                  by making a public announcement.

         We will follow any extension, termination, amendment or delay, as
promptly as practicable, with a public announcement. Subject to applicable law
(including rules 14d-4(c) and 14d-6(d) under the 1934 Act, which require that
any material change in the information published, sent or given to the
stockholders in connection with the offer be promptly sent to stockholders in a
manner reasonably designed to inform them of such change) and without limiting
the manner in which we may choose to make any public announcement, we assume no
obligation to publish, advertise or otherwise communicate any such public
announcement other than by making a release to the Dow Jones News Service.

         Upon the terms and subject to the conditions of our offer (including,
if the offer is extended or amended, the terms and conditions of any such
extension or amendment), we will accept for exchange, and will exchange, shares
of Hudson stock validly tendered and not properly withdrawn as promptly as
practicable after the expiration date, and promptly after they are tendered
during any subsequent offering period.

         TENDERED SHARES MAY BE WITHDRAWN AT ANY TIME PRIOR TO THE EXCHANGE OF
SUCH SHARES

         Your tender of shares of Hudson stock pursuant to the offer is
irrevocable, except that shares of Hudson stock tendered pursuant to the offer
may be withdrawn at any time after __________, 2000 and prior to the time that
your shares have been exchanged for TrustCo stock following completion of our
offer.

         WE MAY PROVIDE A SUBSEQUENT OFFERING PERIOD

         We may, although we do not currently intend to, elect to provide a
subsequent offering period of three to twenty business days after the acceptance
of shares of Hudson stock pursuant to the offer if the requirements under rule
14d-11 of the 1934 Act have been met. You will not have the right to withdraw
shares of Hudson stock that you tender in the subsequent offering period, if
any.

         PROCEDURE FOR TENDERING SHARES

         For you to validly tender shares of Hudson stock pursuant to our offer:

         o        a properly completed and duly executed letter of transmittal,
                  along with any required signature guarantees, or an agent's
                  message (which is explained below) in connection with a
                  book-entry transfer, and any other required documents, must be
                  received by the exchange agent at its address set forth on the
                  back cover of this Prospectus, and certificates for tendered
                  shares of Hudson stock must be received by the exchange agent
                  at such address, or those shares must be tendered pursuant to
                  the procedures for a book-entry tender set forth in "THE
                  EXCHANGE OFFER--Procedure for Tendering Shares" (and a
                  confirmation of receipt of such tender received), in each case
                  before the expiration date; or

         o        you must comply with the guaranteed delivery procedures set
                  forth in "THE EXCHANGE OFFER--procedure for Tendering Shares."


                                       11
<PAGE>

NO APPRAISAL RIGHTS IN CONNECTION WITH THE OFFER (PAGE 68)

         The offer does not entitle you to appraisal rights with respect to your
shares of Hudson stock. Hudson stockholders who have not validly tendered their
shares in the offer and do not vote in favor of the proposed TrustCo-Hudson
merger will not have the right under the Delaware General Corporation Law to
dissent and demand appraisal of their shares of Hudson stock.

TRUSTCO WILL ACCOUNT FOR THE MERGER USING THE "PURCHASE" METHOD (PAGE 45)

         TrustCo will account for the TrustCo-Hudson merger as a purchase for
financial reporting purposes.

FORWARD-LOOKING STATEMENTS MAY PROVE INACCURATE (PAGE 21)

         This Prospectus, including information included or incorporated by
reference in this document, contains forward-looking statements with respect to
the financial condition, results of operations, plans, objectives, future
performance and business of each of TrustCo, Hudson and Cohoes, as well as
information relating to the exchange offer. Also, statements preceded by,
followed by or that include the words "will," "may," "should," "continue,"
"believes," "expects," "intends," "anticipates," or similar expressions, are
forward-looking statements. These forward-looking statements involve various
risks and uncertainties. Actual results may differ materially from those
contemplated by the forward-looking statements due to various factors.

OFFER TO ACQUIRE COHOES (PAGE 27)

         On June 8, 2000, TrustCo made an offer to acquire all of the issued and
outstanding shares of Cohoes for TrustCo stock valued at $16 for each Cohoes
share.

         Neither this offer nor the proposed TrustCo-Hudson merger is
conditioned on the approval or consummation of TrustCo's offer to Cohoes.


















                                       12
<PAGE>

                SELECTED HISTORICAL AND PRO FORMA PER SHARE DATA

                                   (unaudited)

         The following tables show book value per share as of March 31, 2000 for
each of TrustCo, Hudson, Cohoes, TrustCo/Hudson combined and
TrustCo/Hudson/Cohoes combined. Also shown is historical net income per share
and dividends per share information for each of TrustCo, Hudson and Cohoes for
the three months ended March 31, 2000 and the twelve months ended December 31,
1999 and similar pro forma information for TrustCo/Hudson combined and TrustCo/
Hudson/Cohoes combined for the three months ended March 31, 2000. Also shown,
for comparative purposes, is historical net income per share information for
Hudson for the twelve months ended March 31, 2000 and Cohoes for the twelve
months ended June 30, 1999, their most recently reported fiscal year ends.

         The information concerning Hudson and Cohoes is derived from previously
filed Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and previously
released press releases. TrustCo does not make any representation with respect
to either Hudson or Cohoes amounts and has not performed any procedures to
ensure their accuracy or reasonableness.

         The information shown for TrustCo has been prepared from historical
financial information from previously filed Annual Reports on Form 10-K,
Quarterly Reports on Form 10-Q and previously released press releases.

         The information is for illustrative purposes only. The companies would
likely have performed differently had they always been combined. The information
should not be relied on as an indication of future results that the combined
company will experience after the transaction is completed. The pro forma
results are also not necessarily indicative of the future financial position or
future operating results of the combined company. In particular, TrustCo expects
to achieve operating cost savings as a result of the Hudson and Cohoes
transactions. See "BACKGROUND OF THE EXCHANGE OFFER--Benefits of the
transaction" No adjustments have been included in the combined pro forma
operating amounts for the anticipated operating cost savings.


                                       13
<PAGE>
<TABLE>
<CAPTION>

<S>                                            <C>                       <C>                      <C>
                                                   3 MONTHS                  12 MONTHS
                                                     ENDED                      ENDED                 FISCAL
                                                 MARCH 31, 2000           DECEMBER 31, 1999        YEAR-END (1)
                                                 --------------           -----------------        ------------
NET INCOME PER COMMON SHARE:
Historical - Basic
             TrustCo                               $      0.19               $       0.71          $     0.71
             Hudson                                       0.18                       0.59                0.65
             Cohoes                                       0.21                       0.70                0.37
Pro forma combined TrustCo/Hudson                         0.17                       0.63
Pro forma combined TrustCo/Hudson/Cohoes                  0.17                       0.61

Historical - Diluted
             TrustCo                                $     0.19                $      0.68          $     0.68
             Hudson                                       0.18                       0.59                0.65
             Cohoes                                       0.21                       0.70                0.37
Pro forma combined TrustCo/Hudson                         0.17                       0.61
Pro forma combined TrustCo/Hudson/Cohoes                  0.16                       0.60

DIVIDENDS PER COMMON SHARE:
Historical
             TrustCo                                $     0.15               $       0.56
             Hudson                                       0.05                       0.09
             Cohoes                                       0.07                       0.18
Equivalent dividends per common share
             Hudson (2)                                   0.19                       0.71
             Cohoes (3)                             $     0.22               $       0.81

                                                                                 TANGIBLE
PER COMMON SHARE AT MARCH 31, 2000:                 BOOK VALUE                 BOOK VALUE
                                                ------------------------------------------
Historical
             TrustCo                                $     3.19               $       3.19
             Hudson                                      12.85                      12.11
             Cohoes                                      15.12                      14.90
Pro forma combined TrustCo/Hudson                         5.33                       5.08
Pro forma combined TrustCo/Hudson/Cohoes                  6.13                       5.84
</TABLE>

(1) For the Fiscal Year-End amount, TrustCo has a fiscal year end of December
31, 1999, Cohoes has a fiscal year end of June 30, 1999 and Hudson has a fiscal
year end of March 31, 2000.

(2) Equivalent dividends per share are calculated for Hudson by multiplying the
historical TrustCo dividends per share by the estimated transaction exchange
rate of 1.2727, which is calculated by dividing the Hudson acquisition price of
$14.00 by the $11.00 market value of TrustCo stock.

(3) Equivalent dividends per share are calculated for Cohoes by multiplying the
historical TrustCo dividends per share by the estimated transaction exchange
rate of 1.4545, which is calculated by dividing the Cohoes acquisition price of
$16.00 by the $11.00 market value of TrustCo stock.


                                       14
<PAGE>

              SELECTED HISTORICAL FINANCIAL INFORMATION FOR TRUSTCO

         The following is a summary of selected consolidated financial data of
TrustCo for each of the years in the five-year period ended December 31, 1999
and the three-month periods ended March 31, 2000 and 1999. This information is
derived from reports previously filed by TrustCo with the SEC. See "WHERE YOU
CAN FIND MORE INFORMATION.". You should read this summary together with these
financial statements and their accompanying notes. We believe that this
financial information includes all adjustments necessary for a fair presentation
of such information. Results for the interim periods do not necessarily indicate
results that may be expected for any other interim or annual period. This
information does not reflect the pro forma effect of our pending acquisition of
Landmark, which we expect to complete in the third quarter of 2000.

<TABLE>
<CAPTION>
                              TRUSTCO BANK CORP NY
                    SELECTED HISTORICAL FINANCIAL INFORMATION
                                   (UNAUDITED)
               (IN THOUSANDS EXCEPT RATIOS AND PER SHARE AMOUNTS)

                                               AT MARCH 31,                                 AT DECEMBER 31,
                                          -----------------------    --------------------------------------------------------------
                                            2000         1999          1999         1998         1997         1996         1995
                                            ----         ----          ----         ----         ----         ----         ----
Selected Consolidated Financial Data:
<S>                                      <C>          <C>           <C>          <C>          <C>          <C>          <C>
Total assets                              $2,353,653   $2,434,163    $2,364,022   $2,485,080   $2,372,265   $2,261,780   $2,176,185
Loans, net                                 1,298,824    1,263,416     1,293,989    1,268,328    1,244,821    1,190,321    1,177,822
Securities available for sale                653,593      681,160       640,830      717,410      601,899      618,670      640,206
Deposits                                   1,991,058    2,060,558     1,994,909    2,107,414    2,021,863    1,953,146    1,930,649
Borrowings                                   145,034      144,350       152,782      147,924      127,850      111,662       56,654
Shareholders' equity                         170,544      185,217       166,356      185,842      178,825      162,400      160,099

                                           FOR THE THREE MONTHS
                                              ENDED MARCH 31,                        FOR THE YEAR ENDED DECEMBER 31,
                                          -----------------------    --------------------------------------------------------------
                                             2000         1999         1999         1998         1997         1996         1995
                                             ----         ----         ----         ----         ----         ----         ----
Selected Operating Data:
Interest income                               $42,244     $41,666      $167,205     $174,050     $172,005     $166,647     $161,552
Interest expense                               17,801      19,239        74,013       88,347       86,520       82,342       80,200
                                             --------    --------     ---------    ---------    ---------    ---------    ---------
Net interest income                            24,443      22,427        93,192       85,703       85,485       84,305       81,352
Provision for loan losses                         850       1,513         5,063        4,610        5,414         ,577       12,698
                                             --------    --------     ---------    ---------    ---------    ---------    ---------
Net interest income after provision            23,593      20,914        88,129       81,093       80,071       77,728       68,654
Noninterest income                              3,802       5,420        15,416       22,122       17,222       10,313       14,067
Noninterest expense                            11,922      12,202        45,636       48,765       46,226       42,015       44,440
                                             --------    --------     ---------    ---------    ---------    ---------    ---------
Income before income taxes                     15,473      14,132        57,909       54,450       51,067       46,026       38,281
Income tax expense                              5,203       4,809        19,724       19,435       18,892       17,327       12,754
                                             --------    --------     ---------    ---------    ---------    ---------    ---------
Net income                                   $ 10,270    $  9,323     $  38,185    $  35,015    $  32,175    $  28,699    $  25,527
                                             ========    ========     =========    =========    =========    =========    =========

Selected Operating Ratios and Other Data:(2)
Return on average assets                        1.76%       1.55%        1.58%         1.44%        1.40%        1.29%        1.23%
Return on average shareholders'
equity(1)                                      24.24       22.45        22.52         21.47        20.23        19.05        18.03
Cash dividend payout ratio                     78.07       79.42        79.16         75.97        72.34        70.38        69.55
Efficiency ratio                               38.31       41.31        38.62         40.26        40.61        39.51        42.52
Net interest margin                             4.47        3.94         3.82          3.81         4.02         4.07         4.18
Book value per share                           $3.19       $3.44        $3.11         $3.47        $3.32        $3.01        $2.98
Cash dividends per share                        0.15        0.14         0.56          0.50         0.43         0.38         0.33
Basic earnings per share                        0.19        0.17         0.71          0.65         0.59         0.53         0.48
Diluted earnings per share                      0.17        0.16         0.68          0.63         0.58         0.52         0.47
</TABLE>

(1)  Calculated excluding the market value adjustment on securities available
     for sale.
(2)  Where appropriate ratios have been presented on an annualized basis.


                                       15
<PAGE>

               SELECTED HISTORICAL FINANCIAL INFORMATION OF HUDSON

         The following is a summary of selected consolidated financial data of
Hudson and Hudson River Bank & Trust Company for each of the years in the
five-year period ended March 31, 1999 and the nine-month periods ended December
31, 2000 and 1999. This information is derived from reports previously filed by
Hudson and Hudson River Bank & Trust Company with the SEC. See "WHERE YOU CAN
FIND MORE INFORMATION." You should read this summary together with Hudson's
financial statements and their accompanying notes. Certain Hudson financial
information has been reclassified to conform with TrustCo's financial
information. Results for the interim periods do not necessarily indicate results
that may be expected for any other interim or annual period.

<TABLE>
<CAPTION>
                        HUDSON RIVER BANCORP, INC.
                    SELECTED HISTORICAL FINANCIAL INFORMATION
                                   (UNAUDITED)
           (DOLLARS IN THOUSANDS EXCEPT RATIOS AND PER SHARE AMOUNTS)

                                                                              AT OR FOR THE YEARS ENDED MARCH 31,
                                                            --------------------------------------------------------------------
                                                               2000          1999          1998          1997           1996
                                                               ----          ----          ----          ----           ----
Earnings:
<S>                                                         <C>           <C>           <C>            <C>           <C>
Interest income                                             $    76,423   $    63,526   $    55,387    $    52,881   $    49,082
Interest expense                                                 30,509        26,000        25,977         25,426        24,086
                                                            -----------   -----------   -----------    -----------   -----------
Net interest income                                              45,914        37,526        29,410         27,455        24,996
                                                            -----------   -----------   -----------    -----------   -----------
Provision for loan losses                                         6,200         7,341         8,491          3,826         1,090
Other operating income                                            2,588         2,418         2,845          1,825         1,635
Other operating expenses                                         27,788        26,612        19,030         16,187        14,199
                                                            -----------   -----------   -----------    -----------   -----------
Income before tax expenses                                       14,514         5,991         4,734          9,267        11,342
Tax expense                                                       4,988         2,184         1,903          3,607         4,298
                                                            -----------   -----------   -----------    -----------   -----------
Net income                                                  $     9,526   $     3,807   $     2,831    $     5,660   $     7,044
                                                            ===========   ===========   ===========    ===========   ===========

Per Share Data (1):
Basic earnings per share                                    $      0.65   $      0.17            --             --            --
Diluted earnings per share                                         0.65          0.17            --             --            --
Book value at year end                                            14.50         14.02            --             --            --
Book value at year end, including unallocated ESOP shares
         and unvested RRP shares                                  12.85         12.39            --             --            --
Tangible book value per share at year end                         13.66         13.81            --             --            --
Tangible book value per share, including unallocated ESOP
         shares and unvested RRP shares                           12.11         12.21            --             --            --
Closing market price                                              10.00         10.94            --             --            --

Average Balances and Shares
Total assets                                                 $  996,448    $  809,385    $  659,984     $  640,867    $  597,435
Earning assets                                                  950,380       778,691       628,747        612,296       571,263
Loans                                                           698,403       522,974       507,293        471,295       444,645
Securities available for sale                                   231,931       156,405        39,357         53,445        26,889

Securities held to maturity                                      14,899        47,738        71,966         83,343        92,243
Deposits                                                        682,029       608,936       577,721        562,922       530,339
Short-term FHLB advances                                         65,542         2,916         3,699          4,459           745
Long-term FHLB borrowings                                        18,386            --            --             --            --
Shareholders' equity                                            207,953       185,770        67,780         63,322        56,261
Shares outstanding:
     Basic                                                   14,556,648    16,302,268            --             --            --
     Diluted                                                 14,577,742    16,302,268            --             --            --
</TABLE>


                                       16
<PAGE>

<TABLE>
<CAPTION>
                                                                              AT OR FOR THE YEARS ENDED MARCH 31,
                                                               --------------------------------------------------------------
                                                               2000          1999          1998          1997           1996
                                                               ----          ----          ----          ----           ----
Financial Ratios:
<S>                                                             <C>           <C>           <C>          <C>             <C>
Return on average assets                                        0.96%         0.47%         0.43%        0.88%           1.18%
Return on average equity                                        4.58          2.05          4.18         8.94           12.52
Net interest margin                                             4.83          4.82          4.68         4.48            4.38
Efficiency ratio (2)                                           52.61         50.48         56.78        54.18           51.89
Expense ratio (2)                                               2.56          2.49          2.77         2.47            2.31
Equity to assets at year end                                   17.46         24.89         10.18        10.00            9.56
Tangible equity to tangible assets at year end                 16.62         24.62         10.10         9.96            9.50
Allowance to nonperforming loans                              190.50        143.77         52.32        29.37           32.57
Allowance to loans                                              2.38          2.47          1.62         1.19            0.79
</TABLE>

(1)  Per share data only applied to periods since Hudson's initial public
     offering on July 1, 1998.

(2)  Ratio does not include other real estate owned and repossessed property
     expenses, net securities transactions, and goodwill and other intangibles
     amortization for each period. The 1999 ratio does not include a charitable
     contribution to the Hudson River Bank & Trust Company Foundation.


                                       17
<PAGE>

               SELECTED HISTORICAL FINANCIAL INFORMATION OF COHOES

         The following is a summary of selected consolidated financial data of
Cohoes and Cohoes Savings Bank for each of the years in the five-year period
ended June 30, 1999 and the nine-month periods ended March 31, 2000 and 1999.
This information is derived from reports previously filed by Cohoes and Cohoes
Savings Bank with the SEC. See "WHERE YOU CAN FIND MORE INFORMATION." You should
read this summary together with Cohoes' financial statements and their
accompanying notes. Certain Cohoes financial information has been reclassified
to conform with TrustCo's financial information. Results for the interim periods
do not necessarily indicate results that may be expected for any other interim
or annual period.
<TABLE>
<CAPTION>

                              COHOES BANCORP, INC.
                    SELECTED HISTORICAL FINANCIAL INFORMATION
                                   (UNAUDITED)
           (DOLLARS IN THOUSANDS EXCEPT RATIOS AND PER SHARE AMOUNTS)

                                                     AT MARCH 31,                             AT JUNE 30,
                                                 --------------------   -------------------------------------------------------
                                                  2000        1999       1999        1998        1997        1996       1995
                                                  ----        ----       ----        ----        ----        ----       ----
Selected Consolidated Financial Data:
<S>                                              <C>         <C>        <C>         <C>         <C>         <C>        <C>
Total assets                                     $704,414    $628,219   $650,470    $535,716    $491,700    $463,363   $459,336
Cash and cash equivalents                          11,970      22,731     11,114      14,229      16,664       8,900     15,179
Loans, net                                        577,442     489,527    521,005     412,759     398,530     393,970    379,088
Investment securities                              56,096      54,921     54,455      45,424      25,273      25,969     40,052
Securities available for sale                      41,225      43,147     44,742      48,720      35,475      20,886     10,433
Deposits                                          491,508     429,004    446,123     449,541     429,390     404,539    398,963
Borrowings                                         79,652      49,263     49,045      19,897          --       2,116      6,117
Shareholders' equity                              121,136     138,430    139,430      53,282      49,092      44,290     40,130
Real estate owned                                     697         507        724         509       1,874         421        396
Nonperforming loans                                 4,383       4,942      4,993       5,649       6,688       7,793      5,063
</TABLE>








                                       18
<PAGE>
<TABLE>
<CAPTION>


                                                 FOR THE NINE MONTHS
                                                   ENDED MARCH, 31                   FOR THE FISCAL YEAR ENDED JUNE 30
                                                 --------------------    ------------------------------------------------------
                                                  2000        1999       1999        1998        1997        1996       1995
                                                  ----        ----       ----        ----        ----        ----       ----
Selected Operating Data:
<S>                                              <C>          <C>        <C>         <C>         <C>         <C>        <C>
Interest income                                  $ 36,628     $31,829    $43,038     $38,423     $36,285     $35,383    $32,100
Interest expense                                   16,443      15,531     20,334      19,262      17,821      18,164     15,405
                                                 --------    --------    -------     -------     -------     -------    -------
Net interest income                                20,185      16,298     22,704      19,161      18,464      17,219     16,695
Provision for loan losses                           1,250         785      1,235       1,400       1,325         490        330
                                                 --------    --------    -------     -------     -------     -------    -------
Net interest income after provision for loan
losses                                             18,935      15,513     21,469      17,761      17,139      16,729     16,365
Noninterest income                                  1,476       2,176      2,916       2,743       2,790       2,467      2,191
Noninterest expense                                13,504      16,405     20,443      13,767      12,314      11,919     12,152
                                                 --------    --------    -------     -------     -------     -------    -------
Income before income taxes                          6,907       1,284      3,942       6,737       7,615       7,277      6,404
Income tax expense                                  2,517         519      1,511       2,650       2,972       2,882      2,565
                                                 --------    --------    -------     -------     -------     -------    -------
Net income                                       $  4,390    $    765    $ 2,431     $ 4,087     $ 4,643     $ 4,395    $ 3,839
                                                 ========    ========    =======     =======     =======     =======    =======

Selected Operating Ratios and Other Data:(2)
Performance ratios:
Yield on average interest-earning assets             7.36%       7.48%      7.42%      7.96%        8.04%       7.98%      7.76%
Rate paid on average interest-bearing
liabilities                                          3.97        4.12       4.06       4.33         4.27        4.42       3.99
Net interest rate spread                             3.39        3.36       3.36       3.63         3.77        3.56       3.77
Net interest income after provision for loan
losses to ........noninterest expenses             140.22       94.56     105.02     129.01       139.18      140.36     134.67
Noninterest expenses as a percent of average
assets                                               2.62        3.71       3.40       2.75         2.62        2.59       2.82
Return on average assets                             0.85        0.17       0.40       0.82         0.99        0.95       0.89
Return on average equity                             4.52        1.25       2.53       7.88         9.87       10.28       9.95
Ratio of average equity to average assets           18.86       13.89      15.95      10.35        10.03        9.28       8.95
Efficiency ratio                                    62.34       88.80      79.79      62.85        57.94       60.55      64.34
Basic earnings per share (1)                        $0.53       $0.18      $0.37        N/A          N/A         N/A        N/A
Diluted earnings per share (1)                       0.53        0.18       0.37        N/A          N/A         N/A        N/A
Dividends per share                                  0.19         N/A       0.06        N/A          N/A         N/A        N/A
Dividend payout ratio                               35.85%       0.00%     16.22%       N/A          N/A         N/A        N/A
Book value per share                               $15.12      $14.52     $14.62        N/A          N/A         N/A        N/A
Weighted average shares outstanding:
         Basic                                  8,249,339   8,790,918  8,797,601        N/A          N/A         N/A        N/A
         Diluted                                8,249,339         N/A        N/A        N/A          N/A         N/A        N/A

Asset Quality Ratios:
Nonperforming loans as a percent of total
loans                                                0.76%       1.00%      0.95%      1.36%        1.66%       1.96%      1.32%
Nonperforming assets as a percent of total
assets                                               0.72        0.87       0.88       1.15         1.74        1.77       1.19
Allowance for loan losses as a percent of
total loans                                          0.82        0.77       0.77       0.85         0.77        0.82       0.82
Allowance for loan losses as a percent of
nonperforming loans                                108.63       76.14      80.62      62.54        46.43       41.69      61.88
Net loans charged-off to average loans               0.09        0.12       0.16       0.24         0.37        0.10       0.06
</TABLE>

(1)  Earnings per share for the fiscal year 1999 and the nine months ended March
     31, 1999 reflects earnings since conversion.

(2)  Where appropriate ratios have been presented on an annualized basis.


                                       19
<PAGE>

                SELECTED PRO FORMA COMBINED FINANCIAL INFORMATION

         The following tables show selected pro forma financial data for
TrustCo/Hudson combined, TrustCo/Cohoes combined and TrustCo/Hudson/Cohoes
combined.

         The information concerning Hudson and Cohoes is derived from previously
filed Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and previously
released press releases. TrustCo does not make any representation with respect
to either Hudson or Cohoes amounts and has not performed any procedures to
ensure their accuracy or reasonableness.

         The information shown for TrustCo has been prepared from historical
financial information from previously filed Annual Reports on Form 10-K,
Quarterly Reports on Form 10-Q and previously released press releases.

         The information is for illustrative purposes only. The companies would
likely have performed differently had they always been combined. The information
should not be relied on as an indication of future results that the combined
company will experience after the transaction is completed. The pro forma
results are also not necessarily indicative of the future financial position or
future operating results of the combined company. In particular, TrustCo expects
to achieve operating cost savings as a result of the Hudson and Cohoes
transactions. See "BACKGROUND OF THE EXCHANGE OFFER--Benefits of the
transaction". No adjustments have been included in the combined pro forma
operating amounts for the anticipated operating cost savings.

         This Prospectus contains certain forward-looking statements concerning
the financial condition, results of operations and business of TrustCo following
the consummation of its proposed acquisition of Hudson and Cohoes, the
anticipated financial and other benefits of such proposed acquisitions and the
plans and objectives of TrustCo's management following such proposed
acquisitions, including, without limitation, statements relating to the cost
savings expected to result from the proposed acquisitions, anticipated results
of operations of the combined company following the proposed acquisitions and
projected earnings per share of the combined company following the proposed
acquisitions. Generally, the words "will," "may," "should," "continue,"
"believes," "expects," "intends," "anticipates" or similar expressions identify
forward-looking statements. These forward-looking statements involve certain
risks and uncertainties. Factors that could cause actual results to differ
materially from those contemplated by the forward-looking statements include,
among others, the following factors: (i) cost savings expected to result from
the proposed acquisitions may not be fully realized or realized within the
expected time frame; (ii) operating results following the proposed acquisitions
may be lower than expected; (iii) competitive pressure among financial services
companies may increase significantly; (iv) costs or difficulties related to the
integration of the businesses of TrustCo, Hudson and/or Cohoes may be greater
than expected; (v) adverse changes in the interest rate environment may reduce
interest margins or adversely affect asset values of the combined company; (vi)
general economic conditions, whether nationally or in the market areas in which
TrustCo, Hudson and Cohoes conduct business, may be less favorable than
expected; (vii) legislation or regulatory changes may adversely affect the
businesses in which TrustCo, Hudson and Cohoes are engaged; or (viii) adverse
changes may occur in the securities markets.


                                       20
<PAGE>

         The following table shows selected financial information for TrustCo
and Hudson on a pro forma combined basis:

                              TRUSTCO BANK CORP NY
                                       AND
                           HUDSON RIVER BANCORP, INC.
                   PRO FORMA COMBINED SELECTED FINANCIAL DATA
                                   (unaudited)


                          SUMMARY FINANCIAL INFORMATION
                             TRUSTCO/HUDSON COMBINED

                                                 AT MARCH 31, 2000
                                              ----------------------
(in thousands, except per share information)
Selected Consolidated Financial Data:
Total assets
                                                     $3,526,102
Loans, net
                                                      2,103,071
Securities available for sale
                                                        890,573
Deposits
                                                      2,739,621
Borrowings
                                                        296,298
Shareholders' equity
                                                        392,567

                                 FOR THE THREE MONTHS      FOR THE TWELVE MONTHS
Selected Operating Data:        ENDED MARCH 31, 2000     ENDED DECEMBER 31, 1999
                                 --------------------    -----------------------
Interest income
                                             $ 63,253                $   238,404
Interest expense
                                               26,770                    101,571
Net interest income
                                               36,483                    136,833
Provision for loan losses
                                                2,350                     11,263
Noninterest income
                                                4,531                     17,811
Noninterest expense
                                               19,466                     72,232
Income tax expense
                                                6,501                     24,459
Net income
                                             $ 12,697                $    46,690
                                             ========                ===========

Net income per share:
Basic                                        $   0.17                $      0.63
Diluted                                          0.17                       0.61

NOTE:
         The pro forma selected results of operations do not take into
         consideration any potential
         Cost savings or revenue enhancements that will likely be realized as a
         result of these transactions.
         TrustCo currently estimates that approximately 50% of the noninterest
         expense of Hudson can be eliminated

See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       21
<PAGE>

         The following table shows selected financial information for TrustCo
and Cohoes on a pro forma combined basis:

                              TRUSTCO BANK CORP NY
                                       AND
                              COHOES BANCORP, INC.
                   PRO FORMA COMBINED SELECTED FINANCIAL DATA
                                   (unaudited)

                          SUMMARY FINANCIAL INFORMATION
                             TRUSTCO/COHOES COMBINED

(in thousands, except per share information)

                                             AT MARCH 31, 2000
                                             -----------------
Selected Consolidated Financial Data:
Total assets                                     $3,070,778
Loans, net                                        1,876,266
Securities available for sale                       689,880
Deposits                                          2,482,566
Borrowings                                          224,686
Shareholders equity                                 303,025

                                FOR THE THREE MONTHS     FOR THE TWELVE MONTHS
Selected Operating Data         ENDED MARCH 31, 2000    ENDED DECEMBER 31, 1999
                                 --------------------    -----------------------
Interest income                        $54,846                $213,597
Interest expense                        23,621                  94,225
                                       -------                 -------
Net interest income                     31,225                 119,372
Provision for loan losses                1,150                   6,888
Noninterest income                       4,570                  17,281
Noninterest expense                     16,629                  62,458
Income tax expense                       6,148                  23,331
                                       -------                --------
Net income                             $11,868                $ 43,976
                                       =======                ========

Net income per share:
Basic                                   $ 0.18                  $ 0.67
Diluted                                   0.18                    0.65

Note:
The pro forma selected results of operations do not take into consideration any
potential cost savings or revenue enhancements that will likely be realized as a
result of these transactions. TrustCo currently estimates that approximately 50%
of the noninterest expense of Cohoes can be eliminated.

See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       22
<PAGE>

         The following table shows selected financial information for TrustCo,
Cohoes and Hudson on a pro forma combined basis:


                              TRUSTCO BANK CORP NY
                           HUDSON RIVER BANCORP, INC.
                                       AND
                              COHOES BANCORP, INC.
                   PRO FORMA COMBINED SELECTED FINANCIAL DATA
                                   (unaudited)


                          SUMMARY FINANCIAL INFORMATION
                         TRUSTCO/HUDSON/COHOES COMBINED

(in thousands, except per share information)
                                           AT MARCH 31, 2000
                                           -----------------
Selected Consolidated Financial Data:
Total assets                                   $4,243,227
Loans, net                                      2,680,513
Securities available for sale                     926,860
Deposits                                        3,231,129
Borrowings                                        375,950
Shareholders equity                               525,048

                                 FOR THE THREE MONTHS      FOR THE TWELVE MONTHS
Selected Operating Data:        ENDED MARCH 31, 2000     ENDED DECEMBER 31, 1999
                               --------------------    -------------------------
Interest income                         $75,855                 $284,796
Interest expense                         32,590                  121,783
                                        -------                 --------
Net interest income                      43,265                  163,013
Provision for loan losses                 2,650                   13,088
Noninterest income                        5,299                   19,676
Noninterest expense                      24,173                   89,054
Income tax expense                        7,446                   28,066
                                        -------                 --------
Net income                              $14,295                 $ 52,481
                                        =======                 ========

Net income per share:
Basic                                    $ 0.17                   $ 0.61
Diluted                                    0.16                     0.60

Note:
The pro forma selected results of operations do not take into consideration any
potential cost savings or revenue enhancements that will likely be realized as a
result of these transactions. TrustCo currently estimates that approximately 50%
of the noninterest expense of Hudson and Cohoes can be eliminated.

See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       23
<PAGE>

                                  RISK FACTORS

         In deciding whether to tender your shares of TrustCo stock pursuant to
our offer, you should read carefully this Prospectus and the documents to which
we refer you. You should also carefully consider the following factors.

IF WE DO NOT SUCCESSFULLY INTEGRATE TRUSTCO'S AND HUDSON'S OPERATIONS, THE
ANTICIPATED BENEFITS OF THE ACQUISITION OF HUDSON MAY NOT BE FULLY REALIZED

         If we complete the offer and our proposed merger, we will integrate two
companies that have previously operated independently. We have not previously
acquired an organization where there is the potential for management to be
uncooperative in the integration process. Although we believe that the
integration of Hudson's operations into ours will not present any significant
difficulty, there can be no assurance that we will not encounter difficulties in
our efforts to integrate the operations of Hudson with our operations. The
diversion of the attention of management to the integration effort and any
difficulties encountered in combining our operations could adversely affect the
combined company's business and results of operations. These risks could be
increased if we complete our proposed acquisition of Cohoes in that we will
integrate three companies that have previously operated independently.

THERE IS NO GUARANTEE THAT WE WILL ACHIEVE OUR PROJECTED COST SAVINGS OF
APPROXIMATELY $15 MILLION PRE-TAX

         We have estimated that, by combining TrustCo and Hudson, we could
realize cost savings of approximately $15 million. See "BACKGROUND OF THE
EXCHANGE OFFER--Benefits of the Transaction." Because we have been unable to
discuss any of our cost savings assumptions or analyses with management of
Hudson and because we have had no access to Hudson's internal information about
its operations, in connection with the preparation of our cost savings
estimates, we have relied on publicly available information concerning Hudson,
our general knowledge of the markets in which we and Hudson compete and our past
experience with respect to our own operations and our integration of acquired
financial institutions. If we were permitted access to Hudson's internal
information about its operations or if we were able to discuss our assumptions
or analyses with Hudson's management, our cost savings estimate might differ. In
addition, although we believe that we have the requisite experience to realize
the estimated cost savings and have achieved comparable cost savings in prior
acquisitions, no assurance can be given that the estimated cost savings will be
achieved or will occur in the time period anticipated. Furthermore, there can be
no assurance that cost savings which are realized will not be offset by
increases in other expenses, other charges to earnings or losses of revenue,
including losses due to problems in integrating the Hudson operations into
TrustCo.

         We expect to realize a significant portion of the cost savings through
a merger integrating the operations of our subsidiary, Trustco Bank, with
Hudson's subsidiary, Hudson River Bank & Trust Company, which may require
additional regulatory approvals. These significant cost savings will not be
realized unless and until we are able to integrate these operations. While we
are not able to specifically quantify this portion of our estimated cost
savings, we believe that it would constitute a majority of our estimated cost
savings. Receipt of any required regulatory approvals for this integration is
not a condition to the offer or the merger of Hudson and TrustCo.


                                       24
<PAGE>

THERE IS NO GUARANTEE THAT WE WILL NOT SUFFER NET REVENUE RUN-OFF AS A RESULT OF
INTEGRATING HUDSON'S BUSINESSES INTO OURS

         In formulating our earnings estimates, we have not assumed any net
run-off of revenue attributable to our acquisition of Hudson. This assumption is
based on our prior acquisition experience where we have been able to grow net
interest income and non-interest income while achieving targeted cost savings.
In addition, we have not made any decisions with respect to branch closings
because we do not have access to internal information of Hudson from which we
would expect to make such decisions. Accordingly, our earnings estimates do not
assume the closure of any Hudson (or TrustCo) branches, although we would
anticipate that certain branches will be closed. Based on our experience in
prior acquisitions, we believe that any revenue reduction resulting from any
branch closings would be offset by additional cost savings associated with such
branch closings. If we were permitted access to non-public information regarding
Hudson's business plans and operations, our assumption of no net revenue run-off
might differ. Although we intend generally to integrate Hudson's operations and
implement our cost savings measures in a manner that is designed to minimize the
loss of revenues, there can be no assurance that some revenue will not be lost.
Factors that could cause a loss of revenues include unanticipated loss of
customers due to a lack of customer acceptance of our deposit, lending and
investment products.

THERE CAN BE NO ASSURANCE THAT THE INTEGRATION PROCESS WILL NOT BE ADVERSELY
AFFECTED IF HUDSON'S SENIOR EXECUTIVE MANAGEMENT OR OTHER EMPLOYEES ARE
UNCOOPERATIVE IN THAT PROCESS

         As noted above, we have not previously engaged in an acquisition where
there is the potential for management and other employees to be uncooperative
with us in the integration process. Our proposal is not dependent upon the
retention of Hudson's senior executive management, and we have no reason to
believe that Hudson employees below the level of senior executive management
would be uncooperative in the integration process, either before the completion
of our proposed merger or thereafter. However, there can be no assurance that
there will not be some level of uncooperativeness on the part of Hudson's senior
executive management and/or its other employees which could adversely affect the
integration process.

YOUR BOARD OF DIRECTORS MAY DELAY SATISFACTION OF CERTAIN CONDITIONS TO OUR
OFFER

         Several of the conditions to our offer will require action by the
Hudson board of directors. See "THE EXCHANGE OFFER--Certain Conditions of the
Exchange Offer." There can be no assurance that the Hudson board will take
action to cause the satisfaction of these conditions to our offer.














                                       25
<PAGE>

                        BACKGROUND OF THE EXCHANGE OFFER

PAST CONTACTS

         From time to time, TrustCo is involved in due diligence investigations,
discussions and negotiations concerning possible business combination
transactions with other financial institutions. TrustCo generally seeks to
acquire financial institutions that would: (i) complement its overall strategic
focus; (ii) provide opportunities for growth in markets where the target
financial institution conducts business; and (iii) improve TrustCo's retail
banking franchise.

         On April 25, 2000, Hudson and Cohoes announced that they had entered
into their merger agreement and the related option agreement. Following
announcement of the proposed Hudson-Cohoes merger, TrustCo reviewed its
strategic options, including the possibility of proceeding with one or more
offers for either or both of Hudson and Cohoes.

         On June 8, 2000, TrustCo sent a letter to Mr. Earl Schram, Jr., the
Chairman of the Board of Hudson, proposing a merger of TrustCo and Hudson.
Pursuant to the proposal, TrustCo would acquire Hudson in a merger (the
"TrustCo-Hudson Merger") in which each share of Hudson's common stock would be
exchanged for shares of TrustCo Common Stock with an aggregate value equal to
$14.00. On June 23, 2000, Hudson informed TrustCo that Hudson's Board of
Directors had unanimously rejected the proposed TrustCo-Hudson Merger.

         On June 26, 2000, TrustCo publicly announced its intention to commence
an offer to exchange shares of TrustCo Common Stock with an aggregate value
equal to $14.00 for each share of Hudson common stock, and commenced such offer
on July ___, 2000.

         On July 11, 2000, TrustCo filed proxy materials with the SEC for the
purpose of soliciting votes by Hudson and Cohoes stockholders against the
proposed Hudson-Cohoes merger and disseminated those materials to Hudson and
Cohoes stockholders.

PURPOSE OF THE EXCHANGE OFFER; THE TRUSTCO-HUDSON MERGER

         The purpose of our offer (the "Exchange Offer") is to acquire control
of, and ultimately the entire equity interest in, Hudson and to consolidate the
operations of Hudson and TrustCo to achieve operational efficiencies and cost
savings. TrustCo would not make the Exchange Offer if it could not effect the
merger of TrustCo and Hudson (the "TrustCo-Hudson Merger") and, consequently,
the Exchange Offer is conditioned upon the removal of various impediments to
consummation of the TrustCo-Hudson Merger. As soon as practicable after
consummation of the Exchange Offer, TrustCo intends to cause to occur: (i) the
merger of Hudson with and into TrustCo or a subsidiary of TrustCo pursuant to
which each outstanding share of Hudson common stock ("Hudson Common Stock")
(except for treasury shares and shares held by TrustCo or any subsidiary of
TrustCo other than in a fiduciary capacity) would be converted into the right to
receive shares of TrustCo common stock ("TrustCo Common Stock") with an
aggregate value equal to $14.00; and (ii) the integration of the operations of
Hudson River Bank & Trust Company with Trustco Bank, National Association
("Trustco Bank").

BENEFITS OF THE TRANSACTION

         Following the TrustCo-Hudson Merger, TrustCo intends to consolidate all
supervisory functions of Hudson into TrustCo, transfer all remaining assets of
Hudson to Trustco Bank and consolidate the operations of Hudson River Bank &
Trust Company with Trustco Bank, resulting in operational efficiencies and cost
savings.


                                       26
<PAGE>

         TrustCo believes that the integration of Trustco Bank and Hudson River
Bank & Trust Company will provide increased opportunities for growth and
diversification in and service to the market served by each organization and
added flexibility in responding to various factors currently influencing the
banking and financial services industries, including rapid technological and
regulatory changes, increased competition and the geographic expansion of
markets. The TrustCo-Hudson Merger will allow TrustCo to extend its natural
marketplace in New York and is expected to result in greater economies of scale
through coordination of intra-market operations and a stronger financial
position through an increased asset base. Although estimates of specific cost
savings resulting from the consolidation are inherently subjective, TrustCo
presently believes that, if the TrustCo-Hudson Merger and the integration of
Trustco Bank and Hudson River Bank & Trust Company are consummated, TrustCo
would be able to achieve pre-tax cost savings of approximately $8 million in the
first year, and an additional $7 million in the second year following the
TrustCo-Hudson Merger. See "SELECTED PRO FORMA COMBINED FINANCIAL INFORMATION."

OFFER TO ACQUIRE COHOES

         On June 8, 2000, TrustCo sent a letter to Mr. Duncan MacAffer, the
Chairman of the Board of Cohoes, proposing the merger of TrustCo and Cohoes.
Pursuant to the proposal, TrustCo would acquire Cohoes in a merger in which each
share of Cohoes stock would be exchanged for shares of TrustCo stock valued at
$16.00. The proposal expired on June 23, 2000 and, on that date, Cohoes informed
TrustCo that a merger with TrustCo was contrary to Cohoes' strategic business
plan and declined to have any discussions with TrustCo.

         On June 26, 2000, TrustCo publicly announced its intention to commence
a tender offer to exchange shares of TrustCo stock valued at $16.00 for each
share of Cohoes' common stock. Also on June 26, 2000, Cohoes publicly announced
that it remained fully committed to the proposed merger with Hudson.

         TrustCo has been actively soliciting Cohoes stockholders to vote
against the proposed merger of Hudson and Cohoes (the "Hudson-Cohoes Merger").
TrustCo expects to commence its exchange offer for Cohoes on ________, 2000 by
mailing a prospectus and the related letter of transmittal to Cohoes
stockholders. TrustCo expects to file shortly an application with the Federal
Reserve Board to obtain the regulatory approvals necessary to complete that
exchange offer and the TrustCo-Cohoes Merger. Promptly after the SEC declares
that registration statement effective, TrustCo intends to file with the SEC
proxy materials to be used for soliciting the approval by TrustCo's stockholders
of the issuance of TrustCo Common Stock in the Cohoes exchange offer and the
TrustCo-Cohoes Merger.

         The consummation of the Cohoes exchange offer on the part of TrustCo is
subject to the same or similar conditions (or the waiver thereof) as this
Exchange Offer. However, neither the consummation of the Cohoes exchange offer
nor the TrustCo-Cohoes Merger is a condition precedent to this Exchange Offer.






                                       27
<PAGE>

                               THE EXCHANGE OFFER

         The following description contains, among other information, a summary
of the Exchange Offer and the related letter of transmittal (the "Letter of
Transmittal") and is qualified in its entirety by reference to the full text of
the Letter of Transmittal which is incorporated herein by reference and attached
hereto as Appendix A to this Prospectus. SHAREHOLDERS ARE URGED TO READ
CAREFULLY THE LETTER OF TRANSMITTAL.

GENERAL

         TrustCo hereby offers, upon the terms and subject to the conditions of
the Exchange Offer described in this Prospectus and the related Letter of
Transmittal, to exchange shares of TrustCo Common Stock with an aggregate value
equal to $14.00 (the "Exchange Consideration") for each outstanding share of
Hudson Common Stock validly tendered on or prior to the Expiration Date (as
defined herein) and not withdrawn. A tendering Hudson shareholder may, by
properly completing the Letter of Transmittal, elect to receive the Exchange
Consideration for his or her Hudson Common Stock.

         The number of shares of the TrustCo Common Stock constituting the
Exchange Consideration for purposes of the Exchange Offer will be calculated
with reference to the average closing price of the TrustCo Common Stock on the
Nasdaq for the 20-day period ending 5 days prior to the closing date under the
Exchange Offer. Since the value of the Exchange Consideration is fixed at $14.00
per share of Hudson Common Stock exchanged, the number of shares of TrustCo
Common Stock that a tendering Hudson shareholder will receive under the Exchange
Offer will fluctuate as the market price of the TrustCo Common Stock fluctuates.
Based on the closing sales price of a share of TrustCo Common Stock as reported
on Nasdaq on __________________, 2000, tendering holders of Hudson Common Stock
would receive _____ shares of TrustCo Common Stock as the Exchange
Consideration. TRUSTCO RESERVES THE RIGHT TO AMEND THE EXCHANGE OFFER, INCLUDING
THE COMPOSITION OR AMOUNT OF THE EXCHANGE CONSIDERATION, FOR ANY REASON. IF
TRUSTCO SO AMENDS THE EXCHANGE OFFER, IT WILL EXTEND THE EXCHANGE OFFER FOR A
PERIOD OF TEN BUSINESS DAYS IF THE EXCHANGE OFFER IS SCHEDULED TO EXPIRE PRIOR
THERETO.

         The term "Expiration Date" means 12:00 midnight, New York City time, on
_______________, 2000, unless and until TrustCo extends the period of time for
which the Exchange Offer is open, in which event the term "Expiration Date"
means the latest time and date at which the Exchange Offer, as so extended by
TrustCo, expires. TrustCo presently anticipates electing to extend the Exchange
Offer from time to time until such time as the Regulatory Approval Condition (as
defined below) has been satisfied; however, TrustCo will not be obligated to do
so. See "THE EXCHANGE OFFER--Certain Legal Matters" and "-- Certain Conditions
of the Exchange Offer."

         Tendering shareholders will not be obligated to pay any charges or
expenses of ChaseMellon Shareholder Services, the exchange agent for this
Exchange Offer (the "Exchange Agent"), or any brokerage commissions. Except as
set forth in Instruction 6 of the Letter of Transmittal, transfer taxes on the
exchange of Hudson Common Stock pursuant to the Exchange Offer will be paid by
or on behalf of TrustCo.

         TrustCo's obligation to accept Hudson Common Stock pursuant to the
Exchange Offer is conditioned upon: (i) there being validly tendered and not
withdrawn prior to the expiration of the Exchange Offer a number of shares of
Hudson Common Stock which, together with the 108,500 shares of Hudson Common
Stock now owned by TrustCo, would represent at least a majority of the total
number of outstanding Hudson Common Stock on a fully diluted basis (the "Minimum
Tender Condition"); (ii) the receipt of all regulatory approvals sought by
TrustCo in connection with the transactions contemplated by the Exchange Offer
without the imposition of any material condition unacceptable to TrustCo, the
expiration of all required waiting periods, and the compliance by TrustCo with
any terms or


                                       28
<PAGE>

conditions of such approvals (the "Regulatory Approval Condition"); (iii) either
the Hudson Board of Directors (the "Hudson Board") having approved the Exchange
Offer and the TrustCo-Hudson Merger and having amended the charter of Hudson
River Bank & Trust Company to eliminate the provisions thereof prohibiting the
direct or indirect ownership of more than 10% of any class of an equity security
of Hudson River Bank & Trust Company or, in lieu of such actions, TrustCo being
satisfied, in its sole discretion, that Section 203 of the Delaware General
Corporation Law (the "DGCL") and the anti-takeover provisions of Hudson's
Certificate of Incorporation ("Hudson's Certificate") and the charter of Hudson
River Bank & Trust Company are invalid or are not applicable to the transactions
contemplated by the Exchange Offer and the TrustCo-Hudson Merger (the "Removal
of Impediments Condition"); (iv) the approval of the issuance of shares of
TrustCo Common Stock pursuant to the Exchange Offer by the holders of a majority
of the outstanding shares of TrustCo Common Stock voted at a meeting of such
holders at which the total number of votes cast represents over fifty percent in
interest of all shares of TrustCo Common Stock outstanding on the applicable
record date (the "TrustCo Stockholder Approval Condition"); (v) the receipt of
an opinion of counsel that the Exchange Offer and the TrustCo-Hudson Merger
qualify as a reorganization under ss.368(a)(1)(A) of the Internal Revenue Code
of 1986, as amended (the "Code"); (vi) since June 30, 1999, there being no
material adverse change, or any prospective material adverse change, in the
financial condition, business or assets of Hudson (the "Material Adverse Effect
Condition"); (vii) Hudson and Cohoes terminate their Agreement and Plan of
Merger dated April 25, 2000 (the "Hudson-Cohoes Merger Agreement"); (viii)
Hudson and Cohoes terminate their Stock Option Agreement dated April 25, 2000
(the "Hudson-Cohoes Option Agreement") and Cohoes surrenders to Hudson the
option granted to Cohoes thereunder; (ix) the stockholders of Hudson do not
approve the Hudson-Cohoes Merger; (x) TrustCo and Hudson enter into a definitive
TrustCo-Hudson Merger agreement; and (xi) the Registration Statement becomes
effective. See "THE EXCHANGE OFFER--Certain Conditions of the Exchange Offer."
TrustCo reserves the absolute right to waive any of the conditions of the
Exchange Offer other than the Regulatory Approval Condition, the TrustCo
Stockholder Approval Condition and the effectiveness of the Registration
Statement. Waiver or amendment of any of these conditions may require an
extension of the Exchange Offer.

         If by 12:00 midnight, New York City time, on _________________, 2000,
or any later time to which the Exchange Offer has been extended, the Minimum
Tender Condition has not been satisfied, TrustCo may elect either to: (i) extend
the Exchange Offer and retain all shares of Hudson Common Stock theretofore
tendered until the expiration of the Exchange Offer, as extended, subject to the
right of a tendering shareholder to withdraw his or her Hudson Common Stock;
(ii) waive the Minimum Tender Condition, extend the Exchange Offer for a period
of ten business days if the Exchange Offer is scheduled to expire prior thereto
and thereafter exchange all tendered shares of Hudson Common Stock; or (iii)
terminate the Exchange Offer and exchange none of the Hudson Common Stock and
return all tendered shares of Hudson Common Stock. TrustCo will not accept for
exchange any shares of Hudson Common Stock pursuant to the Exchange Offer until
such time as the Regulatory Approval Condition has been satisfied and the
Registration Statement has become effective. See "THE EXCHANGE OFFER -- Certain
Legal Matters" and "--Certain Conditions of the Exchange Offer--REGULATORY
APPROVAL CONDITION" and "--EFFECTIVE REGISTRATION STATEMENT."

         A request is being made to Hudson for use of Hudson's shareholder list
and security position listing for the purpose of disseminating the Exchange
Offer to holders of Hudson Common Stock. The Prospectus and the related Letter
of Transmittal will be mailed to record holders of Hudson Common Stock and will
be furnished to brokers, banks and similar persons whose names or the names of
whose nominees appear on the shareholder list or, if applicable, who are listed
as participants in a clearing agency's security position listing for subsequent
transmittal to beneficial owners of Hudson Common Stock.


                                       29
<PAGE>

EXTENSION, TERMINATION AND AMENDMENT

         TrustCo expressly reserves the right, in its sole discretion, at any
time or from time to time, to extend the period of time during which the
Exchange Offer is to remain open by giving oral or written notice of such
extension to the Exchange Agent. There can be no assurance that TrustCo will
exercise its right to extend the Exchange Offer, although it is presently
anticipated that the Exchange Offer will be extended in order to permit the
Regulatory Approval Condition to be satisfied. If TrustCo amends the Exchange
Offer, it will extend the Exchange Offer for a period of ten business days if
the Exchange Offer is scheduled to expire prior thereto. During any such
extension, all shares of Hudson Common Stock previously tendered and not
withdrawn will remain subject to the Exchange Offer, subject to the right of a
tendering shareholder to withdraw his or her Hudson Common Stock. See "THE
EXCHANGE OFFER -- Withdrawal Rights." TrustCo also reserves the right to delay
acceptance for exchange of, or exchange of, any Hudson Common Stock pursuant to
the Exchange Offer, regardless of whether such shares of Hudson Common Stock
were theretofore accepted for exchange, and to amend or terminate the Exchange
Offer and not accept for exchange or exchange any Hudson Common Stock not
theretofore accepted for exchange, or exchanged, upon the failure of any of the
conditions of the Exchange Offer to be satisfied. Any such extension,
termination, amendment or delay will be followed as promptly as practicable by
public announcement thereof, such announcement in the case of an extension to be
issued no later than 9:00 A.M., New York City time, on the next business day
after the previously scheduled Expiration Date. Without limiting the manner in
which TrustCo may choose to make such public announcement, TrustCo will not,
unless otherwise required by rules of the SEC, have any obligation to make any
such public announcement other than by making a release to the Dow Jones News
Service. If, prior to the Expiration Date, TrustCo increases the consideration
offered to holders of Hudson Common Stock, such increase will be applicable to
all holders whose shares of Hudson Common Stock are accepted for exchange
pursuant to the Exchange Offer and, if at the time notice of such increase is
first published, sent or given to holders of Hudson Common Stock, the Exchange
Offer is scheduled to expire at any time earlier than the expiration of a period
ending on the tenth business day from and including the date that such notice is
first so published, sent or given, the Exchange Offer will be extended until the
expiration of such period of ten business days. For purposes of the Exchange
Offer, a "business day" means any day other than a Saturday, Sunday or federal
holiday and consists of the time period from 12:01 A.M. through 12:00 midnight,
New York City time.

EXCHANGE OF SHARES; EXCHANGE CONSIDERATION

         Upon the terms and subject to the conditions of the Exchange Offer, the
acceptance for exchange and the exchange of the outstanding shares of Hudson
Common Stock validly tendered and not withdrawn will be made as soon as
practicable after the Expiration Date. Subject to applicable rules of the SEC,
TrustCo expressly reserves the right to delay acceptance for exchange or the
exchange of Hudson Common Stock in order to comply with any applicable law.

         For purposes of the Exchange Offer, TrustCo will be deemed to have
accepted for exchange and thereby acquired tendered Hudson Common Stock as, if
and when TrustCo gives oral or written notice to the Exchange Agent of its
acceptance of the tenders of such shares of Hudson Common Stock. Delivery of the
Exchange Consideration in exchange for the Hudson Common Stock pursuant to the
Exchange Offer will be made by the Exchange Agent as soon as practicable after
receipt of such notice. The Exchange Agent will act as agent for tendering
shareholders for the purpose of receiving the Exchange Consideration from
TrustCo and transmitting such Exchange Consideration to tendering shareholders.
Under no circumstances will interest be paid by TrustCo by reason of any delay
in making such exchange.

         If any tendered shares of Hudson Common Stock are not acceptable for
exchange pursuant to the terms and conditions of the Exchange Offer for any
reason, or if certificates are submitted for more shares of Hudson Common Stock
than are tendered, certificates for such un-exchanged Hudson Common Stock


                                       30
<PAGE>

will be returned to the tendering Hudson shareholder by the Exchange Agent as
soon as practicable following consummation or termination of the Exchange Offer.

CASH IN LIEU OF FRACTIONAL SHARES OF TRUSTCO COMMON STOCK

         No certificates representing fractional shares of TrustCo Common Stock
will be issued by TrustCo pursuant to the Exchange Offer. In lieu thereof, each
tendering shareholder who would otherwise be entitled to a fractional share of
TrustCo Common Stock will receive cash in an amount equal to the average closing
price of one share of TrustCo Common Stock on Nasdaq over the 20-day period
ending 5 days before the closing of the Exchange Offer multiplied by the
fractional share of TrustCo Common Stock that such tendering shareholder was
otherwise entitled to receive.

WITHDRAWAL RIGHTS

         Shares of Hudson Common Stock tendered pursuant to the Exchange Offer
may be withdrawn at any time after ___________, 2000 and prior to the expiration
of the Exchange Offer and the acceptance of Hudson Common Stock for exchange
pursuant to the Exchange Offer.

         For a withdrawal to be effective, a written, telegraphic, telex or
facsimile transmission notice of withdrawal must be timely received by the
Exchange Agent at its address set forth on the back cover of this Prospectus and
must specify the name of the person having tendered the shares of Hudson Common
Stock to be withdrawn, the number of shares of Hudson Common Stock to be
withdrawn and the name of the registered holder, if different from that of the
person who tendered such shares of Hudson Common Stock.

         The signature(s) on the notice of withdrawal must be guaranteed by a
firm which is a member of a registered national securities exchange or of the
National Association of Securities Dealers, Inc. (the "NASD") or by a commercial
bank or trust company having an office or correspondent in the United States
(collectively, "Eligible Institutions") unless such shares of Hudson Common
Stock have been tendered for the account of any Eligible Institution. If
certificates have been delivered or otherwise identified to the Exchange Agent,
the name of the registered holder and the serial numbers of the particular
certificates evidencing the shares of Hudson Common Stock withdrawn must also be
furnished to the Exchange Agent as aforesaid prior to the physical release of
such certificates. All questions as to the form and validity (including time of
receipt) of notices of withdrawal will be determined by TrustCo in its sole
discretion, whose determination will be final and binding. Neither TrustCo, the
Exchange Agent nor any other person will be under any duty to give notification
of any defects or irregularities in any notice of withdrawal or will incur any
liability for failure to give any such notification. Any shares of Hudson Common
Stock properly withdrawn will be deemed not to have been validly tendered for
purposes of the Exchange Offer. However, withdrawn shares of Hudson Common Stock
may be re-tendered by following one of the procedures described under "THE
EXCHANGE OFFER -- Procedure for Tendering Shares" at any time prior to the
Expiration Date.

PROCEDURE FOR TENDERING SHARES

         To tender shares of Hudson Common Stock pursuant to the Exchange Offer,
a properly completed and duly executed Letter of Transmittal (or facsimile
thereof), together with the certificates representing the tendered Hudson Common
Stock and any other required documents, must be transmitted to and received by
the Exchange Agent at its address set forth on the back cover of this
Prospectus. THE METHOD OF DELIVERY OF ALL REQUIRED DOCUMENTS IS AT THE OPTION
AND RISK OF THE TENDERING SHAREHOLDER. IF DELIVERY IS BY MAIL, REGISTERED MAIL
WITH RETURN RECEIPT REQUESTED, PROPERLY INSURED, IS RECOMMENDED.


                                       31
<PAGE>

         Signatures on all Letters of Transmittal must be guaranteed by an
Eligible Institution in cases where shares of Hudson Common Stock are tendered
by a registered holder of Hudson Common Stock who has completed either the box
entitled "Special Payment Instructions" or the box entitled "Special Delivery
Instructions" on the Letter of Transmittal. If the certificates are registered
in the name of a person other than the signer of the Letter of Transmittal, or
if certificates for un-exchanged shares of Hudson Common Stock are to be issued
to a person other than the registered holder(s), the certificates must be
endorsed or accompanied by appropriate stock powers, in either case signed
exactly as the name or names of the registered owner or owners appear on the
certificates, with the signature(s) on the certificates or stock powers
guaranteed as aforesaid.

         By executing a Letter of Transmittal as set forth above, the tendering
shareholder irrevocably appoints designees of TrustCo as such shareholder's
proxies, each with full power of substitution, to the full extent of such
shareholder's rights with respect to the shares of Hudson Common Stock tendered
by such shareholder and accepted for exchange by TrustCo and with respect to any
and all other shares of Hudson Common Stock and other securities issued or
issuable in respect of the Hudson Common Stock on or after ____________________,
2000. Such appointment will be effective when, and only to the extent that,
TrustCo exchanges the Exchange Consideration for Hudson Common Stock tendered by
such shareholder. To such extent, all prior proxies appointed by such
shareholder will be revoked. Such designees will be empowered, among other
things, to vote such shares of Hudson Common Stock as they in their sole
discretion deem proper at any annual, special or adjourned meeting of Hudson's
shareholders or otherwise. TrustCo reserves the right to require that, in order
for shares of Hudson Common Stock to be deemed validly tendered, immediately
upon TrustCo's exchange of such Hudson Common Stock TrustCo must be able to
exercise full voting rights with respect to such shares of Hudson Common Stock.

         If a shareholder desires to tender shares of Hudson Common Stock
pursuant to the Exchange Offer and such shareholder's certificates are not
immediately available or time will not permit his Letter of Transmittal, stock
certificates and any other required documents to reach the Exchange Agent prior
to the Expiration Date, his tender may nevertheless be effected if all the
following conditions are met: (i) such tender is made by or through an Eligible
Institution; (ii) a properly completed and duly executed Notice of Guaranteed
Delivery substantially in the form provided by TrustCo herewith is received by
the Exchange Agent as provided below on or prior to the Expiration Date; and
(iii) the certificates for all tendered shares of Hudson Common Stock, together
with a properly completed and duly executed Letter of Transmittal (or facsimile
thereof) and any other documents required by the Letter of Transmittal, are
received by the Exchange Agent within five business days after the date of
execution of such Notice of Guaranteed Delivery.

         The Notice of Guaranteed Delivery may be delivered by hand to the
Exchange Agent or transmitted by telegram, telex, facsimile transmission or mail
to the Exchange Agent and must include a signature guaranteed by an Eligible
Institution in the form set forth in such Notice.

         In any event, the exchange of Exchange Consideration for Hudson Common
Stock tendered and accepted for exchange pursuant to the Exchange Offer will be
made only after timely receipt by the Exchange Agent of certificates therefor
properly completed, duly executed Letter(s) of Transmittal and any other
required documents.

         To avoid backup federal income tax withholding with respect to the
Exchange Consideration received by a shareholder pursuant to the Exchange Offer,
the shareholder must provide the Exchange Agent with his correct taxpayer
identification number or certify that he or she is not subject to backup Federal
income tax withholding by completing the Substitute Form W-9 included in the
Letter of Transmittal.


                                       32
<PAGE>

         All questions as to the validity, form, eligibility (including time of
receipt) and acceptance of any tender of Hudson Common Stock will be determined
by TrustCo in its sole discretion, whose determination will be final and
binding. TrustCo reserves the absolute right to reject any or all tenders
determined by it not to be in proper form or the acceptance of or exchange for
which may, in the opinion of TrustCo's counsel, be unlawful. TrustCo also
reserves the absolute right to waive any of the conditions of the Exchange Offer
which it is legally permitted to waive (other than the Regulatory Approval
Condition, the TrustCo Stockholder Approval Condition and the effectiveness of
the Registration Statement) or any defect or irregularity in the tender of any
shares of Hudson Common Stock. No tender of Hudson Common Stock will be deemed
to have been validly made until all defects and irregularities have been cured
or waived. TrustCo's interpretation of the terms and conditions of the Exchange
Offer (including the Letter of Transmittal and instructions thereto) will be
final and binding. Neither TrustCo, the Exchange Agent nor any other person will
be under any duty to give notification of any defects or irregularities in the
tender of any shares of Hudson Common Stock or will incur any liability for
failure to give any such notification.

         A tender of Hudson Common Stock pursuant to the procedures described
above will constitute a binding agreement between the tendering shareholder and
TrustCo upon the terms and subject to the conditions of the Exchange Offer.

CERTAIN FEDERAL INCOME TAX CONSEQUENCES

         In the opinion of Lewis, Rice & Fingersh, L.C., counsel to TrustCo,
exchanges of Hudson Common Stock for TrustCo Common Stock pursuant to the
Exchange Offer and the TrustCo-Hudson Merger should be treated for federal
income tax purposes as an exchange pursuant to a plan of reorganization within
the meaning of ss.368 of the Code. Consequently, no gain or loss will be
recognized by holders of shares of Hudson Common Stock, except as described
below under "TAX CONSEQUENCES TO HUDSON SHAREHOLDERS IF THE EXCHANGE OFFER AND
THE TRUSTCO-HUDSON MERGER QUALIFY AS A REORGANIZATION." This opinion is based on
the view of Lewis, Rice & Fingersh, L.C. that the Exchange Offer and the
TrustCo-Hudson Merger should be treated as a single transaction and on certain
assumptions, including that: (i) each Hudson shareholder holds his or her shares
of Hudson Common Stock and will hold the TrustCo Common Stock to be received as
a capital asset within the meaning of ss.1221 of the Code; (ii) the continuity
of shareholder interest requirement applicable to corporate reorganizations
(which requires a continuing equity interest in TrustCo by holders owning a
significant percentage of the shares of Hudson Common Stock prior to the
consummation of the Exchange Offer) will be satisfied; (iii) TrustCo will
continue Hudson's historic business or will use a significant portion of
Hudson's historic business assets in a business; (iv) the Exchange Offer and the
TrustCo-Hudson Merger will be consummated as contemplated by this Prospectus;
and (vi) there are valid business reasons for undertaking the Exchange Offer and
the TrustCo-Hudson Merger.

         In rendering their opinion, Lewis, Rice & Fingersh, L.C. have further
assumed that: (i) upon consummation of the Exchange Offer, there will be no
significant contingencies preventing the prompt consummation of the
TrustCo-Hudson Merger; (ii) upon consummation of the Exchange Offer, TrustCo
will not have waived any of the conditions relating to its obligation to
consummate the Exchange Offer in a manner that could prevent a prompt
consummation of the TrustCo-Hudson Merger; and (iii) the TrustCo-Hudson Merger
will in fact be consummated promptly after the consummation of the Exchange
Offer. A significant delay in the consummation of the TrustCo-Hudson Merger
would substantially increase the risk that the Exchange Offer will not qualify
as part of a reorganization within the meaning of ss.368(a)(1)(A) of the Code,
and the absence of the TrustCo-Hudson Merger would mean that the Exchange Offer
was not part of a reorganization. The consequences of a failure to so qualify
are discussed below under "TAX CONSEQUENCES IF THE EXCHANGE OFFER AND THE
TRUSTCO-HUDSON MERGER DO NOT QUALIFY AS A REORGANIZATION."


                                       33
<PAGE>

         In deciding whether two steps are part of a single transaction
qualifying as a reorganization, courts have applied three tests: (i) the binding
commitment test, which requires a binding commitment at the time of the first
step to complete the second step; (ii) the interdependence test which requires
that two steps be so interdependent that the first step would have been
fruitless without the second; and (iii) the end result test which requires that
the steps be pre-arranged parts of a single transaction. Because there is a lack
of uniformity in applying these tests, it is difficult to predict with certainty
whether the Internal Revenue Service (the "IRS") or a court would amalgamate two
steps into a single transaction for federal income tax purposes. However, in the
opinion of Lewis, Rice & Fingersh, L.C., the Exchange Offer and the
TrustCo-Hudson Merger should be treated as part of a single transaction.

         The following discussion summarizes the material federal income tax
consequences of the Exchange Offer to the shareholders of Hudson. This summary
does not address all aspects of federal taxation that may be relevant to
particular Hudson shareholders, nor does this summary address the effect of any
applicable foreign, state, local or other tax laws. This discussion may not
apply to certain classes of taxpayers, including, without limitation, insurance
companies, tax-exempt organizations, financial institutions, dealers in
securities, foreign persons, persons who acquired shares of Hudson Common Stock
pursuant to an exercise of employee stock options or rights or otherwise as
compensation and persons who hold shares of Hudson Common Stock as part of a
straddle or conversion transaction.

         This discussion is based upon the opinion of Lewis, Rice & Fingersh,
L.C. and the existing provisions of the Code, currently applicable regulations
promulgated under the Code, current published administrative positions of the
IRS such as revenue rulings and revenue procedures, and existing judicial
decisions, all of which are subject to change either prospectively or
retroactively. Any change in such authorities may adversely affect the
discussion herein.

         The opinion of Lewis, Rice & Fingersh, L.C. is based, among other
things, on the assumptions listed above, which assumptions have been made with
the consent of TrustCo, and written representations of TrustCo. TrustCo will not
request a ruling from the IRS with respect to the federal income tax
consequences of the Exchange Offer and the TrustCo-Hudson Merger. An opinion of
counsel is not binding on the IRS, and the IRS is not precluded from taking
contrary positions.

         HUDSON SHAREHOLDERS ARE URGED TO CONSULT THEIR OWN TAX ADVISORS AS TO
THE PRECISE FEDERAL, STATE, LOCAL, FOREIGN AND OTHER TAX CONSEQUENCES OF THE
EXCHANGE OFFER.

         TAX CONSEQUENCES TO HUDSON SHAREHOLDERS IF THE EXCHANGE OFFER AND THE
TRUSTCO-HUDSON MERGER QUALIFY AS A REORGANIZATION

         In order for the Exchange Offer and the TrustCo-Hudson Merger to
qualify as a reorganization under the Code, it is necessary that Exchange Offer
and the TrustCo-Hudson Merger be viewed as a single transaction.

         TrustCo has indicated that it will not undertake the Exchange Offer
unless it can also effect the TrustCo-Hudson Merger and, consequently, has
conditioned its obligation to accept shares of Hudson Common Stock under the
Exchange Offer by requiring the elimination of various impediments to
consummation of the TrustCo-Hudson Merger. See "THE EXCHANGE OFFER--Certain
Conditions of the Exchange Offer--REMOVAL OF IMPEDIMENTS CONDITION." Thus,
TrustCo views the Exchange Offer and the TrustCo-Hudson Merger as interdependent
parts of a single transaction. For federal income tax purposes, the IRS should
treat the Exchange Offer and the TrustCo-Hudson Merger as interrelated steps
which do not have economic significance independent of each other. Accordingly,
it is anticipated that the Exchange Offer and the TrustCo-Hudson Merger together
should qualify as a reorganization for federal income tax purposes and a Hudson
shareholder who receives the Exchange Consideration


                                       34
<PAGE>

generally will recognize gain, but not loss, in an amount equal to the lesser
of: (1) the difference between (x) the sum of the cash portion of the Exchange
Consideration plus the fair market value of the TrustCo Common Stock received
and (y) such shareholder's tax basis in his Hudson Common Stock; or (2) the cash
portion of the Exchange Consideration received.

         The only cash payment which the Hudson shareholders will receive under
the Exchange Offer is in lieu of fractional shares. Cash payments received by
Hudson shareholders in lieu of fractional shares will be treated as received by
such shareholders as a distribution in redemption of such fractional share
interests. Accordingly, such shareholders generally will recognize capital gain
measured by the difference between the cash received and the basis of the
fractional shares of TrustCo Common Stock deemed surrendered therefor. Such
capital gain will be long-term gain if a shareholder has held his or her Hudson
Common Stock for more than one year.

         The aggregate tax basis of the TrustCo Common Stock received by a
Hudson shareholder generally will equal that shareholder's aggregate tax basis
in his Hudson Common Stock, increased by the amount of gain recognized by such
shareholder in the Exchange Offer, and decreased by the amount of the cash
portion of the Exchange Consideration received and the basis allocated to any
fractional share interest which is deemed issued and redeemed. A Hudson
shareholder's holding period for the TrustCo Common Stock (including any
fractional share deemed received) received in the Exchange Offer will include
the holding period of the Hudson Common Stock exchanged therefor.

         TAX CONSEQUENCES TO HUDSON SHAREHOLDERS IF THE EXCHANGE OFFER AND THE
TRUSTCO-HUDSON MERGER DO NOT QUALIFY AS A REORGANIZATION

         If the TrustCo-Hudson Merger is not consummated or is consummated in a
way that causes the Exchange Offer and the TrustCo-Hudson Merger not to be a
"reorganization," or if the TrustCo-Hudson Merger is consummated but the
Exchange Offer is treated for federal income tax purposes as a separate
transaction, or if the Exchange Offer and the TrustCo-Hudson Merger together are
determined not to qualify as a reorganization as described above, exchanges
pursuant to the Exchange Offer will be taxable transactions for federal income
tax purposes. In that event, each exchanging shareholder of Hudson Common Stock
will recognize gain or loss for federal income tax purposes measured by the
difference between such shareholder's basis in the Hudson Common Stock exchanged
and the amount of cash plus the fair market value of the TrustCo Common Stock
received by such shareholder in the Exchange Offer. Such gain or loss will be
capital gain or loss if the shares of Hudson Common Stock were held as a capital
asset and will be long-term gain or loss if such Hudson Common Stock had been
held for more than one year at the time of the exchange.

         Exchanges pursuant to the TrustCo-Hudson Merger may likewise be taxable
transactions if the Exchange Offer is treated as a separate taxable transaction.
However, even if the Exchange Offer were a taxable transaction, the
TrustCo-Hudson Merger itself might be considered a reorganization. In that
event, a shareholder of Hudson Common Stock receiving TrustCo Common Stock and
cash would be subject to the federal income tax rules concerning reorganizations
discussed above with respect to the TrustCo Common Stock and cash received in
the TrustCo-Hudson Merger (but not with respect to any TrustCo Common Stock and
cash received by such shareholder in the Exchange Offer).

         If the TrustCo-Hudson Merger does not qualify as a reorganization for
tax purposes, the TrustCo-Hudson Merger might result in adverse tax consequences
to TrustCo.


                                       35
<PAGE>

EFFECT OF EXCHANGE OFFER ON MARKET FOR SHARES

         As of June 20, 2000, according to Hudson's Proxy Statement for its
Special Meeting of Stockholders to be held August 18, 2000 for the purpose of
considering the Hudson-Cohoes Merger (the "Hudson Proxy Statement"), there were
15,546,560 shares of Hudson Common Stock outstanding

         The exchange of Hudson Common Stock pursuant to the Exchange Offer will
reduce the number of shares of Hudson Common Stock that might otherwise trade
publicly and the number of holders of Hudson Common Stock and, pending
consummation of the TrustCo-Hudson Merger, could adversely affect the liquidity
and market value of the remaining Hudson Common Stock held by the public.

         Hudson Common Stock is quoted in the over-the-counter market on Nasdaq.
If the Exchange Offer is consummated, the extent of the public market for the
remaining shares of Hudson Common Stock, and the availability of price
quotations, will depend upon the number of holders, the aggregate market value
of the Hudson Common Stock remaining, the interest of securities firms in
maintaining a market in the Hudson Common Stock and other factors.

RESALE OF TRUSTCO COMMON STOCK

         The TrustCo Common Stock to be issued pursuant to the Exchange Offer
will be freely transferable under the 1933 Act except for shares issued to any
Hudson shareholder who may be deemed to be an "affiliate" of Hudson for purposes
of Rule 145 under the 1933 Act. Under Rule 145, such "affiliates" may not sell
their TrustCo Common Stock acquired in connection with the Exchange Offer except
pursuant to an effective registration statement under the 1933 Act covering such
shares or in compliance with Rule 145 promulgated under the 1933 Act or another
applicable exemption from the registration requirements of the 1933 Act. This
Prospectus does not cover resales of shares of TrustCo Common Stock received by
any person who may be deemed to be an "affiliate" of Hudson. Persons who may be
deemed to be "affiliates" of Hudson generally include individuals who, or
entities that, control, are controlled by or are under common control with
Hudson, and may include certain officers and directors of Hudson as well as
principal shareholders of Hudson.

CERTAIN LEGAL MATTERS

         GENERAL

         Except as set forth below, based upon an examination of publicly
available information filed by Hudson with the SEC and other publicly available
information with respect to Hudson, TrustCo is not aware of any license or
regulatory permit which appears to be material to the business of Hudson and
which is likely to be adversely affected by TrustCo's acquisition of Hudson
Common Stock pursuant to the Exchange Offer or, except as disclosed below, of
any approval or other action by any state, federal or foreign government or
governmental agency that would be required prior to the acquisition of Hudson
Common Stock pursuant to the Exchange Offer. TrustCo presently intends to take
such actions with respect to any approvals as will enable it to acquire the
Hudson Common Stock as expeditiously as possible. In this regard, TrustCo
expressly reserves the right to challenge the validity and applicability of any
state, foreign or other statutes or regulations purporting to require approval
of the commencement or consummation of the Exchange Offer and the TrustCo-Hudson
Merger.

         There can be no assurance that any license, permit, approval or other
action, if needed, would be obtained and, if obtained, there can be no assurance
as to the date of any such license, permit or approval or the absence of any
litigation challenging any such license, permit or approval. Similarly, there
can be no assurance that adverse consequences might not result to Hudson or to
its business in the event of adverse regulatory action or inaction. TrustCo's
obligation under the Exchange Offer to accept for


                                       36
<PAGE>

exchange and exchange Hudson Common Stock is subject to satisfaction of the
Regulatory Approval Condition as well as other conditions which could be
triggered by an adverse regulatory development. See "THE EXCHANGE OFFER --
General" and "--Certain Conditions of the Exchange Offer."

         FEDERAL REGULATORY MATTERS

         The acquisition of Hudson Common Stock pursuant to the Exchange Offer
(the "Acquisition") and the consummation of the TrustCo-Hudson Merger are
subject to the prior approval by the Federal Reserve Board pursuant to the Bank
Holding Company Act of 1956, as amended (the B.H.C.A.) and the New York State
Banking Department (the "NYBD").

         In determining whether to approve the Acquisition and the
TrustCo-Hudson Merger, the Federal Reserve Board and the NYBD will consider,
among other things: (i) competitive factors; (ii) the financial and managerial
resources and future prospects of TrustCo and Hudson; (iii) the convenience and
needs of the community served by TrustCo and Hudson; and (iv) supervisory
factors. These factors are discussed herein. It is anticipated that TrustCo's
applications to the Federal Reserve Board and the NYBD for approval of the
Exchange Offer and the TrustCo-Hudson Merger will be filed on or about
July 24, 2000.

         Following approval by the Federal Reserve Board, the Acquisition may
not be consummated for 30 days after such approval, during which time the United
States Department of Justice (the "D.O.J.") may challenge the acquisition of
Hudson Common Stock pursuant to the Exchange Offer on antitrust grounds and seek
the divestiture of certain assets and liabilities. With the approval of the
Federal Reserve Board and the D.O.J., the waiting period may be reduced to no
less than 15 days.

         The Federal Reserve Board is prohibited from approving any transaction
under the applicable statutes which: (i) would result in a monopoly or which
would be in furtherance of any combination or conspiracy to monopolize or to
attempt to monopolize the business of banking in any part of the United States;
or (ii) may have the effect in any section of the United States of substantially
lessening competition, or tending to create a monopoly, or resulting in a
restraint of trade; unless in each case the Federal Reserve Board finds that the
anti-competitive effects of the transaction are clearly outweighed in the public
interest by the probable effect of the transaction in meeting the convenience
and needs of the communities to be served.

         In reviewing a transaction under the applicable statutes, the Federal
Reserve Board will also consider the financial and managerial resources of the
companies and their subsidiary banks and the convenience and needs of the
communities to be served. As part of, or in addition to, consideration of the
above factors, it is anticipated that the Federal Reserve Board will consider
the regulatory status of TrustCo and Hudson and the overall capital and safety
and soundness standards established by the Federal Deposit Insurance Corporation
Improvement Act of 1991 and the regulations promulgated thereunder.

         Under the Community Reinvestment Act of 1977, as amended (the
"C.R.A."), the Federal Reserve Board must also take into account the record of
performance of each of TrustCo and Hudson in meeting the credit needs of the
entire community, including low and moderate income neighborhoods, served by
each company. As of the date of this Prospectus, the depository institution
subsidiaries of TrustCo and Hudson received C.R.A. ratings of satisfactory,
and satisfactory in their most recent C.R.A. examinations.

         The B.H.C.A. and the Federal Reserve Board regulations also require
publication of notice of, and the opportunity for public comment on, the
application submitted by TrustCo for approval of the Acquisition and authorize
the Federal Reserve Board to hold a public hearing in connection therewith if
the Federal Reserve Board determines that such a hearing would be appropriate.
Any such hearing or


                                       37
<PAGE>

comments provided by third parties could prolong the period during which the
application is subject to review by the Federal Reserve Board.

         As noted above, the Acquisition may not be consummated until 30 days
after Federal Reserve Board approval, during which time the D.O.J. may challenge
the Acquisition on antitrust grounds and seek the divestiture of certain assets
and liabilities. With the approval of the Federal Reserve Board and the D.O.J.,
the waiting period may be reduced to no less than 15 days. The commencement of
an antitrust action by the D.O.J. would stay the effectiveness of Federal
Reserve Board approval of the Acquisition unless a court specifically orders
otherwise. In reviewing the Acquisition, the D.O.J. could analyze the effect of
the Acquisition on competition differently than the Federal Reserve Board and,
thus, it is possible that the D.O.J. could reach a different conclusion than the
Federal Reserve Board regarding the competitive effects of the Acquisition.
Failure of the D.O.J. to object to the Acquisition may not prevent the filing of
antitrust actions by private persons or state attorneys general.

         In general, the Federal Reserve Board and the D.O.J. will examine the
impact of the Acquisition on competition in various product and geographic
markets, including competition for deposits and loans, especially loans to small
and middle market businesses.

         ANTICIPATED APPROVALS

         While TrustCo expects to receive the approvals from the Federal Reserve
Board and the NYBD and other relevant agencies required to consummate the
Acquisition, TrustCo cannot predict when, or give any assurance that, such
approvals will be received. It is anticipated that, in any event, the approval
process (including the mandatory waiting periods) could take four months from
the date the applications are filed. Any such approvals may be issued subject
to prior compliance with material conditions, which conditions might be
unacceptable to TrustCo and would entitle TrustCo to terminate the Exchange
Offer. In any event, the receipt of all such regulatory approvals and
the expiration of all waiting periods is a non-waivable condition to the
Exchange Offer.

CERTAIN CONDITIONS OF THE EXCHANGE OFFER

         Notwithstanding any other provisions of the Exchange Offer, TrustCo
will not be required to accept for exchange or exchange any Hudson Common Stock,
may postpone the acceptance for exchange of or exchange for Hudson Common Stock
tendered and may terminate or amend the Exchange Offer as provided herein if any
of the following conditions are not satisfied: (i) the Minimum Tender Condition,
(ii) the Regulatory Approval Condition, (iii) the Removal of Impediments
Condition; (iv) the TrustCo Stockholder Approval Condition; (v) the receipt of
an opinion of counsel that the Exchange Offer and the TrustCo-Hudson Merger
qualify as a reorganization under ss.368(a)(1)(A) of the Code; (vi) the Material
Adverse Effect Condition; (vii) the termination of the Hudson-Cohoes Merger
Agreement; (viii) the termination of the Hudson-Cohoes Option Agreement and the
surrender by Cohoes to Hudson of the option granted to Cohoes thereunder; (ix)
the stockholders of Hudson do not approve the Hudson-Cohoes Merger; (x) TrustCo
and Hudson enter into a definitive TrustCo-Hudson Merger agreement; and (xi) the
Registration Statement becomes effective. TrustCo reserves the absolute right to
waive any of the conditions of the Exchange Offer other than the Regulatory
Approval Condition, the TrustCo Stockholder Approval Condition and the
effectiveness of the Registration Statement.

         MINIMUM TENDER CONDITION

         The Exchange Offer is conditioned upon there being validly tendered and
not withdrawn prior to the Expiration Date a number of shares of Hudson Common
Stock which, together with the shares of Hudson Common Stock beneficially owned
by TrustCo and its affiliates for their own respective accounts, would represent
at least a majority of the Hudson Common Stock outstanding on a fully diluted


                                       38
<PAGE>

basis (i.e., as though all options or other securities convertible into or
exercisable for shares of Hudson Common Stock had been so converted, exercised
or exchanged) on the date shares of Hudson Common Stock are accepted by TrustCo
pursuant to the Exchange Offer. According to the Hudson's Proxy Statement, there
were 15,546,560 shares of Hudson Common Stock outstanding on June 20, 2000 and
___________ shares of Hudson Common Stock in the aggregate reserved for issuance
pursuant to Hudson's Employee Stock Ownership Plan and Stock Option and
Incentive Plan. Based on the foregoing, TrustCo believes that the Minimum Tender
Condition would have been satisfied on June 20, 2000 if, in addition to the
108,500 shares of Hudson Common Stock currently owned beneficially by TrustCo
and its affiliates for their own respective accounts, at least an aggregate of
__________ shares of Hudson Common Stock, or ___% of the shares of Hudson Common
Stock outstanding on _______, had been validly tendered pursuant to the Exchange
Offer and not withdrawn. TrustCo reserves the right (but is not obligated),
subject to the rules and regulations of the SEC, to waive or amend the Minimum
Tender Condition and to purchase fewer than such number of shares of Hudson
Common Stock as would satisfy the Minimum Tender Condition pursuant to the
Exchange Offer.

         REGULATORY APPROVAL CONDITION

         The Exchange Offer and the TrustCo-Hudson Merger are subject to certain
governmental approvals. See "THE EXCHANGE OFFER--Certain Legal Matters." While
TrustCo expects to receive the requisite governmental approvals, TrustCo cannot
predict when, or give any assurance that, such approvals will be received. In
any event, the Regulatory Approval Condition is a non-waivable condition to the
Exchange Offer.

         REMOVAL OF IMPEDIMENTS CONDITION

         Hudson's Certificate provides that certain business combinations with
an interested stockholder require the affirmative vote of the holders of at
least 80% of the voting power of the outstanding shares of stock of Hudson
entitled to vote in the election of directors. Generally, an interested
stockholder is any person, other than Hudson or any subsidiary of Hudson, that
is the beneficial owner, directly or indirectly, of more than 10% of the voting
power of the outstanding voting stock of Hudson. The business combination
provisions relating to interested stockholders also apply to affiliates of
interested stockholders. Business combinations subject to the 80% stockholder
approval requirement include, among other things, any merger or consolidation of
Hudson or any subsidiary of Hudson with the interested stockholder or an
affiliate of the interested stockholder. A business combination with an
interested stockholder may avoid the 80% stockholder approval requirement,
needing only an affirmative vote of a majority of the voting power of the
outstanding shares of stock of Hudson entitled to vote in the election of
directors, if the business combination has been approved by a majority of the
disinterested directors of Hudson, the fair market value of the consideration
received per share by the holders of Hudson Common Stock equals or exceeds the
higher of certain fair price determinations, the interested stockholder and its
affiliates refrain from engaging in certain self-dealing transactions with
Hudson prior to consummation of the business combination, and a proxy or
information statement describing the proposed business combination and complying
with the requirements of the 1934 Act has been mailed to stockholders of Hudson
at least 30 days prior to the consummation of such business combination.
Hudson's Certificate also provides that, with certain exceptions, a beneficial
owner of more than 10% of the voting stock of Hudson is prohibited from voting
more than 10% of the stock of Hudson (the "10% Limit").

         The DGCL contains a statute designed to provide Delaware corporations
with protection against certain takeover attempts. The statute, which is
codified in Section 203 of the DGCL ("Section 203"), among other things,
prohibits Hudson (a Delaware corporation) from engaging in certain business
combinations (including a merger) with a person who is the beneficial owner of
15% or more of Hudson's outstanding voting stock (an "Interested Stockholder")
during the three-year period following the date


                                       39
<PAGE>

such person became an Interested Stockholder. This restriction does not apply
if: (i) before such person became an Interested Stockholder, the board of
directors approved the transaction in which the Interested Stockholder becomes
an Interested Stockholder or approved the business combination; or (ii) upon
consummation of the transaction which resulted in the stockholder becoming an
Interested Stockholder, the Interested Stockholder owned at least 85% of the
voting stock of Hudson outstanding at the time the transaction commenced,
excluding for purposes of determining the number of shares outstanding, those
shares owned by (a) persons who are directors and also officers and (b) employee
stock plans in which employee participants do not have the right to determine
confidentially whether shares held subject to the plan will be tendered in a
tender or exchange offer; or (iii) on or subsequent to such date, the business
combination is approved by the board of directors and authorized at an annual or
special meeting of stockholders, and not by written consent, by the affirmative
vote of at least two-thirds of the outstanding voting stock which is not owned
by the Interested Stockholder. Section 203 provides that a Delaware corporation
may exempt itself from the requirements of the statute by adopting an amendment
to the corporation's certificate of incorporation. Hudson's Certificate does not
exempt Hudson from the requirements of Section 203. A copy of Section 203 is
attached hereto as Appendix B.

         The New York charter of Hudson River Bank & Trust Company, the thrift
subsidiary of Hudson, contains a provision which currently prevents any person
from acquiring, directly or indirectly, more than ten percent of any class of
stock of Hudson River Bank & Trust Company. Because Hudson River Bank & Trust
Company is owned and controlled by Hudson, the acquisition of Hudson Common
Stock pursuant to the Exchange Offer may be deemed to be an indirect acquisition
of the equity securities of Hudson River Bank & Trust Company which,
accordingly, may result in a violation of the New York charter of Hudson River
Bank & Trust Company. This ownership limitation is being maintained on a
permissive basis by Hudson River Bank & Trust Company and may be lawfully
removed by amendment to its charter. The charter of Hudson River Bank & Trust
Company could be amended through the adoption of appropriate resolutions by the
board of directors of Hudson River Bank & Trust Company -- who are substantially
the same individuals as the directors of Hudson -- which resolutions would
thereafter be approved by the Hudson Board acting on its behalf as the sole
stockholder of Hudson River Bank & Trust Company.

         All of the above are impediments to the consummation of the
TrustCo-Hudson Merger. The Removal of Impediments Condition provides that
TrustCo is not required to exchange shares of Hudson Common Stock and may
terminate, amend or extend the Exchange Offer, unless the above impediments are
removed. This can be satisfied by the Hudson Board approving the Exchange Offer
and the TrustCo-Hudson Merger. The consideration offered pursuant to the
Exchange Offer meets the fair price requirements of the business combination
provisions of Hudson's Certificate and, except for the required approval of
Hudson's directors, satisfaction of the other conditions would be within
TrustCo's control. Accordingly, the approval of the Exchange Offer and the
TrustCo-Hudson Merger by the Hudson Board (other than any director nominated by
TrustCo and thereafter elected to the Hudson Board) would obviate the 80% vote
requirement of Hudson's Certificate and also make Section 203 inapplicable to
the transaction. As part of its approval of the TrustCo-Hudson Merger, the
Hudson Board would also have to: (i) make appropriate arrangements for amendment
to the charter of Hudson River Bank & Trust Company to eliminate the 10% or
greater ownership prohibition contained therein; and (ii) make appropriate
arrangements to permit all shares of Hudson Common Stock tendered pursuant to
the Exchange Offer to be voted on the merger of Hudson into TrustCo pursuant to
the second proviso to the definition of beneficial ownership in Article FOURTH
Section (C)(2)(b) of Hudson's Certificate.

         The exact timing and details of the TrustCo-Hudson Merger between
TrustCo and Hudson following the Exchange Offer will necessarily depend upon a
variety of factors, including the means and methods employed by the Hudson Board
in approving the TrustCo-Hudson Merger. Although TrustCo


                                       40
<PAGE>

intends to propose and to seek consummation of the TrustCo-Hudson Merger as soon
as reasonably practicable following the Exchange Offer, no assurances can be
given when such merger will be effected.

         TRUSTCO STOCKHOLDER APPROVAL CONDITION

         The Exchange Offer is conditioned, among other things, upon the
approval of the issuance of shares of TrustCo Common Stock pursuant to the
Exchange Offer by the holders of a majority of the outstanding shares of TrustCo
Common Stock. Pursuant to the rules of the NASD, since the number of shares of
TrustCo Common Stock to be issued in the Exchange Offer and the TrustCo-Hudson
Merger will exceed 20% of the number of outstanding shares prior to such
issuance, the issuance must be approved by TrustCo's stockholders. TrustCo
intends to seek such approval at a special meeting of shareholders it intends
to call] for third quarter of 2000. In any event, this TrustCo Stockholder
Approval Condition is a non-waivable condition to the Exchange Offer.

         TAX OPINION

         The Exchange Offer is conditioned, among other things, upon the receipt
of an opinion of counsel that the Exchange Offer and the TrustCo-Hudson Merger
qualify as a reorganization under ss.368(a)(1)(A) of the Code. The law firm of
Lewis, Rice & Fingersh, L.C. has indicated that it will issue such opinion based
upon and subject to the assumptions and other matters set forth in "THE EXCHANGE
OFFER--Certain Federal Income Tax Consequences."

         MATERIAL ADVERSE EFFECT CONDITION

         The Material Adverse Effect Condition will be deemed satisfied unless,
after June 30, 1999 and prior to the time of exchange of any shares of Hudson
Common Stock (whether or not any shares of Hudson Common Stock have theretofore
been accepted for exchange or exchanged pursuant to the Exchange Offer) any of
the following events occur:

                  (a) there is threatened, instituted or pending any action or
         proceeding before any domestic or foreign court or governmental agency
         or other regulatory or administrative agency or commission, including
         but not limited to any such investigation, action or proceeding which
         was in existence on or prior to ________, 2000: (i) seeking to obtain
         any material damages from Hudson; (ii) seeking to prohibit or restrict
         Hudson's ownership or operation of any material portion of its business
         or assets, or to compel Hudson to dispose of or hold separate all or
         any material portion of Hudson's business or assets; (iii) which
         otherwise is reasonably likely to materially adversely affect Hudson or
         the value of the Hudson Common Stock; (iv) which imposes material
         limitations on the ability of TrustCo effectively to acquire or hold or
         to exercise full rights of ownership of the Hudson Common Stock,
         including, without limitation, the right to vote the shares of Hudson
         Common Stock acquired by it on all matters properly presented to the
         stockholders of Hudson or any material condition unacceptable to
         TrustCo; or (v) which is reasonably likely to enjoin, restrain or
         prohibit, or result in material damages in respect of, or which is
         related to or arises out of, the Exchange Offer or the TrustCo-Hudson
         Merger or the consummation of the transactions contemplated hereby; or

                  (b) any change (or any condition, event or development
         involving a prospective change) has occurred or is threatened in the
         business, properties, assets, liabilities, capitalization,
         stockholders' equity, financial condition, results of operations or
         prospects of Hudson (including, without limitation, the disposition of
         assets) which, in the sole judgment of TrustCo, is or may be materially
         adverse to Hudson or to the value of the Hudson Common Stock, or
         TrustCo becomes aware of any fact (including, but not limited to, any
         such change, condition, event or development) which, in the sole
         judgment of TrustCo, has or may have materially adverse


                                       41
<PAGE>

         significance with respect to Hudson or any of its subsidiaries or to
         the value of the Hudson Common Stock; and

which, in the sole judgment of TrustCo, makes it inadvisable to proceed with the
Exchange Offer.

         The foregoing conditions are for the sole benefit of TrustCo and may be
asserted by TrustCo regardless of the circumstances giving rise to any such
conditions (including any action or inaction by TrustCo) or may be waived by
TrustCo in whole or in part. The failure by TrustCo at any time to exercise any
of the foregoing rights will not be deemed a waiver of any such right and each
such right will be deemed a continuing right which may be asserted at any time
and from time to time.

         TERMINATION OF THE HUDSON-COHOES MERGER AGREEMENT

         The Exchange Offer is conditioned, among other things, upon Hudson
terminating the Hudson-Cohoes Merger Agreement. The Hudson-Cohoes Merger
Agreement may be terminated as follows: (i) by the mutual consent of Hudson and
Cohoes; (ii) by a non-breaching party if the other party has breached in any
material respects any of its covenants, representations or warranties and such
breach is not cured within 30 days after notice of such breach is given to the
breaching party; (iii) by either Hudson or Cohoes if any necessary governmental
approval is not obtained; (iv) by either party if the shareholders of either
party do not approve the Hudson-Cohoes Merger; or (v) by either party if the
Hudson-Cohoes Merger has not occurred by February 28, 2001.

         Hudson and Cohoes can, by mutual consent, terminate the Hudson-Cohoes
Merger Agreement. However, if they do not, the Hudson-Cohoes Merger Agreement
can be terminated by Hudson if the Hudson stockholders do not approve the
Hudson-Cohoes Merger. See "THE EXCHANGE OFFER--Certain Conditions of the
Exchange Offer--STOCKHOLDER DISAPPROVAL OF THE HUDSON-COHOES MERGER." In the
alternative, Hudson can terminate the Hudson-Cohoes Merger Agreement if the
Hudson-Cohoes Merger has not occurred by February 28, 2001.

         TrustCo does not know if the Hudson Board will so terminate the
Hudson-Cohoes Merger Agreement under any of these circumstances. The Hudson
Board did not retain the right to terminate the Hudson-Cohoes Merger Agreement
in the event of an offer superior to that contained in the Hudson-Cohoes Merger
Agreement.

         TERMINATION OF THE HUDSON-COHOES OPTION AGREEMENT

         The Exchange Offer is conditioned, among other things, upon the
termination of the Hudson-Cohoes Option Agreement and the surrender by Cohoes to
Hudson of the options granted to Cohoes thereunder. The Hudson-Cohoes Option
Agreement was entered into in connection with the Hudson-Cohoes Merger
Agreement. Under the Hudson-Cohoes Option Agreement, Hudson granted Cohoes an
unconditional, irrevocable option to purchase up to 3,093,765 shares of Hudson
Common Stock at a price per share of $9.3125.

         Cohoes may exercise the option if, but only if, both an "Initial
Triggering Event" and a "Subsequent Triggering Event" has occurred prior to the
occurrence of an "Exercise Termination Event."

         An "Initial Triggering Event" includes any of the following events or
transactions: (i) Hudson, without Cohoes's prior consent, enters into an
agreement to be acquired (i.e., 10% or more of the voting power of the Hudson
Common Stock), or the Hudson Board recommends that the Hudson shareholders
approve such an acquisition transaction with any person other than Cohoes; (ii)
any person other than Cohoes acquires beneficial ownership (or the right to
acquire beneficial ownership) of 10% or more of the outstanding shares of Hudson
Common Stock; (iii) any person publicly announces that it has made or


                                       42
<PAGE>

intends to make a proposal to engage in an acquisition transaction with Hudson;
(iv) the Hudson Board (without having received Cohoes's consent): (a) withdraws
its recommendation to the Hudson stockholders that they approve the
Hudson-Cohoes Merger; or (b) authorizes, recommends or proposes an agreement to
enter into an acquisition transaction with anyone other than Cohoes; or (c)
provides information to or engages in negotiations with a third party relating
to a possible acquisition transaction; (v) any person (other than Cohoes) files
with the SEC a registration statement or tender offer materials with respect to
a potential exchange offer than would constitute such an acquisition
transaction; (vi) Hudson willfully breaches any covenant or obligation contained
in the Hudson-Cohoes Merger Agreement after an overture is made by a third party
to Hudson or its shareholders to engage in a possible acquisition transaction
and such breach would entitle Cohoes to terminate the Hudson-Cohoes Merger
Agreement and has not been cured within the time period prescribed in the
Hudson-Cohoes Option Agreement or (vii) any person (other than Cohoes and
without Cohoes's consent) files an application or notice with any federal or
state thrift or bank regulatory or antitrust authority to engage in such an
acquisition transaction. The Exchange offer, and TrustCo's activities in
connection therewith and with the TrustCo-Hudson Merger, constitute an "Initial
Triggering Event.

         A "Subsequent Triggering Event" means: (i) the acquisition by any
person (other than Cohoes) of beneficial ownership of 25% or more of the
outstanding Hudson Common Stock; or (ii) the occurrence of an "Initial
Triggering Event" described in clause (i) of the immediately preceding paragraph
(but by substitution 25% for 10%). The Exchange Offer, and TrustCo's activities
in connection therewith and with the TrustCo-Hudson Merger, will constitute a
"Subsequent Triggering Event."

         An "Exercise Termination Event" means any of the following: (i) such
time as the Hudson-Cohoes Merger becomes effective; (ii) a termination of the
Hudson-Cohoes Merger Agreement in accordance with its term; or (iii) the passage
of certain prescribed times after termination of the Hudson-Cohoes Merger
Agreement if such termination follows the occurrence of an "Initial Triggering
Event."

         Since there has been an Initial Triggering Event, and since the closing
of the Exchange Offer and the TrustCo-Hudson Merger will constitute a Subsequent
Triggering Event, Hudson and Cohoes will need to mutually agree to terminate the
Hudson-Cohoes Option Agreement to satisfy this condition.

         STOCKHOLDER DISAPPROVAL OF THE HUDSON-COHOES MERGER

         The Exchange Offer is conditioned, among other things, upon the Hudson
stockholders not approving the Hudson-Cohoes Merger. If the Hudson-Cohoes Merger
Agreement is terminated, then this condition will be deemed satisfied. However,
if the Hudson-Cohoes Merger Agreement is not otherwise terminated and if Hudson
holds a meeting of its stockholders to approve the Hudson-Cohoes Merger, this
condition will be satisfied only if the requisite number of Hudson stockholders
either vote against such approval or abstain from voting.

         To be approved, the Hudson-Cohoes Merger must receive the affirmative
vote of ___________ shares of Hudson Common Stock and __________ shares of
Cohoes Common Stock.

         TrustCo currently holds 108,500 shares of Hudson Common Stock and
intends to vote such shares against the proposed Hudson-Cohoes Merger. In
addition, TrustCo is soliciting proxies from Hudson's stockholders to vote
against the proposed Hudson-Cohoes Merger. TrustCo does not know whether it will
obtain a sufficient number of proxies which, together with the shares of Hudson
Common Stock already owned by TrustCo, will be sufficient to defeat the proposed
Hudson-Cohoes Merger if the matter is ultimately put to Hudson's stockholders
for approval.

         You should be aware that, under the Hudson-Cohoes Merger Agreement,
Hudson is required to take all action which is necessary to properly call and
convene a meeting of its shareholders to consider


                                       43
<PAGE>

and vote upon the Hudson-Cohoes Merger and the Hudson-Cohoes Merger Agreement.
The Hudson Board is obligated under the Hudson-Cohoes Merger Agreement to
recommend that the Hudson stockholders approve the Hudson-Cohoes Merger. The
Hudson Board has no ability (without otherwise breaching the Hudson-Cohoes
Merger Agreement) to recommend that the Hudson stockholders vote against the
Hudson-Cohoes Merger, even if a superior offer has been made.

         DEFINITIVE TRUSTCO-HUDSON MERGER AGREEMENT

         The Exchange Offer is conditioned, among other things, upon TrustCo and
Hudson entering into a definitive agreement with respect to the TrustCo-Hudson
Merger. TrustCo considers the Exchange Offer and the TrustCo-Hudson Merger to be
related steps in one overall transaction whereby TrustCo acquires all of the
issued and outstanding shares of Hudson Common Stock. See "THE EXCHANGE
OFFER--Certain Federal Income Taxes." Whether this condition can be satisfied
depends upon the willingness of the Hudson Board to enter into such a definitive
agreement.

         EFFECTIVE REGISTRATION STATEMENT

         The Exchange Offer is conditioned, among other things, upon this
Registration Statement becoming effective. The SEC recently changed its rules to
permit exchange offers to begin before the related registration statement has
become effective. TrustCo has taken advantage of this rule. However, under
applicable law and related SEC rules, TrustCo may not accept for exchange any
shares of Hudson Common Stock tendered in the Exchange Offer until the
Registration Statement is declared effective by the SEC. This is a non-waivable
condition to the Exchange Offer.

FEES AND EXPENSES

         TrustCo has engaged Georgeson Shareholder Communications Inc. to act as
TrustCo's information agent (the "Information Agent") with respect to the
Exchange Offer. TrustCo will pay the Information Agent a fee of $10,000 for its
services in connection with the Exchange Offer, plus reimbursement for
out-of-pocket expenses, and will indemnify the Information Agent against certain
liabilities and expenses in connection therewith, including liabilities under
the federal securities laws.

         TrustCo will pay the Exchange Agent reasonable and customary
compensation for its services in connection with the Exchange Offer, plus
reimbursement for out-of-pocket expenses, and will indemnify the Exchange Agent
against certain liabilities and expenses in connection therewith, including
liabilities under the federal securities laws.

         Brokers, dealers, commercials banks and trust companies will be
reimbursed by TrustCo for customary mailing and handling expenses incurred by
them in forwarding material to their customers.

ACCOUNTING TREATMENT

         Upon consummation of the Exchange Offer, TrustCo will account for the
acquisition of the Hudson Common Stock as a purchase business combination. See
"PRO FORMA COMBINED FINANCIAL INFORMATION--Summary of Purchase Accounting
Adjustments March 31, 2000."

NASDAQ LISTING

         The outstanding shares of TrustCo Common Stock are, and the shares of
TrustCo Common Stock to be issued in the Exchange Offer and the TrustCo-Hudson
Merger will be, included for quotation on the Nasdaq.


                                       44
<PAGE>

SOURCE OF FUNDS

         The cash portion of the Exchange Consideration, i.e. the amounts
necessary for payments in lieu of fractional shares, will be funded from
TrustCo's existing cash assets and/or an advance from Trustco Bank to TrustCo.

TREATMENT OF HUDSON STOCK OPTIONS

         Hudson maintains an Employee Stock Ownership Plan ("ESOP") for its
employees and a Stock Option and Incentive Plan for directors, advisory
directors and key employees (collectively the "Option Plans"). Each outstanding
option under the Option Plans will be canceled prior to the consummation date of
the TrustCo-Hudson Merger and the holder thereof will receive from TrustCo, in
payment for such option, a number of shares of TrustCo Common Stock equal to
$14.00 less the exercise price of the stock option. Any resulting fractional
shares will be paid in cash. It is anticipated that the ESOP will be terminated
and any remaining unallocated ESOP shares would be allocated to participants
after repayment of the ESOP loan.

















                                       45
<PAGE>

                               RECENT DEVELOPMENTS



















                                       46


<PAGE>

               UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION


         The following unaudited pro forma condensed balance sheet and income
statements have been prepared based on the historical results of operations and
financial condition of TrustCo, Hudson and Cohoes. Pro forma adjustments and
assumptions on which they are based are described in the notes following such
balance sheet and income statements. The purchase accounting adjustments were
calculated as of the dates indicated in the notes (primarily March 31, 2000).

         TrustCo has not had access to the Hudson or Cohoes records as part of
its attempt to allocate the cost of its investment in the fair value of the
Hudson and Cohoes assets and liabilities. The allocation of the cost of the
investments reflected in the accompanying pro forma information has been made
based on available information in some instances and otherwise based on
assumptions TrustCo believes to be reasonable. In instances in which there was
no reliable basis to make a reasonable estimate, recorded values were considered
to approximate fair value. Accordingly, for purposes of these pro forma
financial statements, the fair value of loans, deposits and premises and
equipment were considered to be carrying value. The excess of the purchase price
over the fair value of the net assets has been treated as goodwill.

         The information concerning Hudson and Cohoes is derived from previously
filed Annual Reports on Form 10-K, Quarterly Reports on Form 10-Q and previously
released press releases. TrustCo does not make any representation with respect
to either Hudson or Cohoes amounts and has not performed any procedures to
ensure their accuracy or reasonableness.

         The information shown for TrustCo has been prepared from historical
financial information from previously filed Annual Reports on Form 10-K,
Quarterly Reports on Form 10-Q and previously released press releases.

         The information is for illustrative purposes only. The companies would
likely have performed differently had they always been combined. The information
should not be relied on as an indication of future results that the combined
company will experience after the transactions are completed, because of a
variety of factors, including access to additional information and changes in
value.

         TrustCo also expects to achieve operating cost savings as a result of
the Hudson and Cohoes transactions. See "BACKGROUND OF THE EXCHANGE
OFFER--Benefits of the transaction" No adjustments have been included in the
combined pro forma operating amounts for the anticipated operating cost savings.

         This Prospectus contains certain forward-looking statements concerning
the financial condition, results of operations and business of TrustCo following
the consummation of its proposed acquisition of Hudson and Cohoes, the
anticipated financial and other benefits of such proposed acquisitions and the
plans and objectives of TrustCo's management following such proposed
acquisitions, including, without limitation, statements relating to the cost
savings expected to result from the proposed acquisitions, anticipated results
of operations of the combined company following the proposed acquisitions and
projected earnings per share of the combined company following the proposed
acquisitions. Generally, the words "will," "may," "should," "continue,"
"believes," "expects," "intends," "anticipates" or similar expressions identify
forward-looking statements. These forward-looking statements involve certain
risks and uncertainties. Factors that could cause actual results to differ
materially from those contemplated by the forward-looking statements include,
among others, the following factors: (i) cost savings expected to result from
the proposed acquisitions may not be fully realized or realized within the
expected time frame; (ii) operating results following the proposed acquisitions
may be lower than expected; (iii) competitive pressure among financial services
companies may increase significantly; (iv) costs or difficulties related to the
integration of the businesses of TrustCo, Hudson and/or Cohoes may be greater
than expected;


                                       47
<PAGE>

(v) adverse changes in the interest rate environment may reduce interest margins
or adversely affect asset values of the combined company; (vi) general economic
conditions, whether nationally or in the market areas in which TrustCo, Hudson
and Cohoes conduct business, may be less favorable than expected; (vii)
legislation or regulatory changes may adversely affect the businesses in which
TrustCo, Hudson and Cohoes are engaged; or (viii) adverse changes may occur in
the securities markets.

















                                       48
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEET AT MARCH 31, 2000

         TRUSTCO AND HUDSON COMBINED
<TABLE>
<CAPTION>

                                                                                                       TRUSTCO
                                                                                                        HUDSON
                                                                                      PRO FORMA        COMBINED
                                                        TRUSTCO        HUDSON        ADJUSTMENTS      PRO FORMA
                                                       -----------   ------------   --------------   -------------
(in thousands)

ASSETS
<S>                                                      <C>              <C>              <C>            <C>
Cash and cash equivalents                                $301,091         16,612       (a) 15,583         333,286
Securities available for sale                             653,593        236,980                -         890,573
Securities held to maturity                                     -         11,144                -          11,144
Loans receivable, net                                   1,298,824        804,247                -       2,103,071
Other assets                                              100,145         68,946                -         169,091
Goodwill and other intangibles                                  -         11,618        (b) 7,319          18,937
                                                       -----------   ------------   --------------   -------------

TOTAL ASSETS                                           $2,353,653      1,149,547           22,902       3,526,102
                                                       ===========   ============   ==============   =============

LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities:
Deposits                                               $1,991,058        748,563                -       2,739,621
Borrowings                                                145,034        151,264                -         296,298
Other liabilities                                          47,017         48,997      (e)  5,000          97,616
                                                                                      (c) (3,398)
                                                       -----------   ------------   --------------   -------------

Total liabilities                                       2,183,109        948,824            1,602       3,133,535
                                                       -----------   ------------   --------------   -------------


Total shareholders' equity                                170,544        200,723      (d)(200,723)        392,567
                                                                                      (g) 218,666
                                                                                      (f)   3,357
                                                       -----------   ------------   --------------   -------------

TOTAL LIABILITIES AND
SHAREHOLDERS' EQUITY                                   $2,353,653      1,149,547           22,902       3,526,102
                                                       ===========   ============   ==============   =============
</TABLE>

See the notes to the Unaudited Pro Forma Combined Financial Information.







                                       49
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEETS AT MARCH 31, 2000

         TRUSTCO AND COHOES COMBINED
<TABLE>
<CAPTION>

                                                                                                                  TRUSTCO
                                                                                                                   COHOES
                                                                                                 PRO FORMA        COMBINED
                                                                     TRUSTCO       COHOES       ADJUSTMENTS      PRO FORMA
                                                                   ------------   ----------   --------------   -------------
 (in thousands)

ASSETS
<S>                                                                  <C>             <C>               <C>           <C>
Cash and cash equivalents                                            $ 301,091       11,970       (a)  8,121         321,182
Securities available for sale                                          653,593       36,287                -         689,880
Securities held to maturity                                                  -       56,096                -          56,096
Loans receivable, net                                                1,298,824      577,442                -       1,876,266
Other assets                                                           100,145       20,872                -         121,017
Goodwill and other intangibles                                               -        1,747       (b)  4,590           6,337
                                                                   ------------   ----------   --------------   -------------
TOTAL ASSETS                                                        $2,353,653      704,414           12,711       3,070,778
                                                                   ============   ==========   ==============   =============

LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities:
Deposits                                                            $1,991,058      491,508                -       2,482,566
Borrowings                                                             145,034       79,652                -         224,686
Other liabilities                                                       47,017       12,118      (e)   5,000          60,501
                                                                                                 (c)  (3,634)
                                                                   ------------   ----------   --------------   -------------
Total liabilities                                                    2,183,109      583,278            1,366       2,767,753
                                                                   ------------   ----------   --------------   -------------

Total shareholders' equity                                             170,544      121,136      (d)(121,136)        303,025
                                                                                                 (g) 128,192
                                                                                                 (f)   4,289
                                                                   ------------   ----------   --------------   -------------
TOTAL LIABILITIES AND
      SHAREHOLDERS' EQUITY                                          $2,353,653      704,414           12,711       3,070,778
                                                                   ============   ==========   ==============   =============
</TABLE>

See the notes to the Unaudited Pro Forma Combined Financial Information.







                                       50
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED BALANCE SHEETS AT MARCH 31, 2000.

         TRUSTCO, HUDSON AND COHOES COMBINED

<TABLE>
<CAPTION>
                                                                                                                      TRUSTCO
                                                                              TRUSTCO                                 HUDSON
                                                                               HUDSON                                 COHOES
                                                               PRO FORMA      COMBINED                  PRO FORMA    COMBINED
                                        TRUSTCO     HUDSON    ADJUSTMENTS    PRO FORMA      COHOES     ADJUSTMENTS   PRO FORMA
                                       ----------  ---------  -------------  -----------  -----------  ------------  ----------
(in thousands)

ASSETS

<S>                                   <C>            <C>            <C>         <C>           <C>            <C>       <C>
Cash and cash equivalents             $  301,091     16,612    (a)  15,583      333,286       11,970   (a)   8,121     353,377
Securities available for sale            653,593    236,980              -      890,573       36,287             -     926,860
Securities held to maturity                    -     11,144              -       11,144       56,096             -      67,240
Loans receivable, net                  1,298,824    804,247              -    2,103,071      577,442             -   2,680,513
Other assets                             100,145     68,946              -      169,091       20,872             -     189,963
Goodwill and other intangibles                 -     11,618    (b)   7,319       18,937        1,747   (b)   4,590      25,274
                                       ----------  ---------  -------------  -----------  -----------  ------------  ----------

TOTAL ASSETS                           $2,353,653  1,149,547        22,902    3,526,102      704,414        12,711   4,243,227
                                       ==========  =========  =============  ===========  ===========  ============  ==========

LIABILITIES AND SHAREHOLDERS' EQUITY
Liabilities:
Deposits                              $1,991,058    748,563              -    2,739,621      491,508             -   3,231,129
Borrowings                               145,034    151,264              -      296,298       79,652             -     375,950
Other liabilities                         47,017     48,997    (e)   5,000
                                                               (c)  (3,398)      97,616       12,118   (e)  (5,000)    111,100
                                                                                                       (c)  (3,634)
                                       ----------  ---------  -------------  -----------  -----------  ------------  ----------
Total liabilities                      2,183,109    948,824          1,602    3,133,535      583,278         1,366   3,718,179


Total shareholders' equity               170,544    200,723    (d)(200,723)     392,567      121,136   (d)(121,136)    525,048

                                                               (g) 218,666                             (g) 128,192
                                                               (f)   3,357                             (f)   4,289
                                       ----------  ---------  -------------  -----------  -----------  ------------  ----------

TOTAL LIABILITIES AND
SHAREHOLDERS' EQUITY                   $2,353,653  1,149,547        22,902    3,526,102      704,414        12,711   4,243,227
                                       ==========  =========  =============  ===========  ===========  ============  ==========

</TABLE>
See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       51
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME FOR THE 12 MONTHS
ENDED DECEMBER 31, 1999

         TRUSTCO AND HUDSON COMBINED

<TABLE>
<CAPTION>
                                                                                                                      TRUSTCO
                                                                                                                      HUDSON
                                                                                                    PRO FORMA        COMBINED
                                                                        TRUSTCO      HUDSON        ADJUSTMENTS       PRO FORMA
                                                                      ------------  ----------   ----------------  --------------
Consolidated Statements of Income:
(in thousands, except per share data)

Interest income:
<S>                                                                     <C>            <C>                              <C>
       Interest and fees on loans                                       $106,734       54,677                  -        161,411
       Interest and dividends on securities available for sale            44,440       14,805                  -         59,245
       Interest and dividends on securities held to maturity                    -       1,321                  -          1,321
       Interest on federal funds sold/short-term investments              16,031          396                  -         16,427
                                                                      ------------  ----------   ----------------  --------------
                  Total interest income                                  167,205       71,199                  -        238,404
                                                                      ------------  ----------   ----------------  --------------

Interest expense:
       Interest on deposits                                               68,041       24,695                  -         92,736
       Interest on short-term borrowings                                   5,972        2,863                  -          8,835
                                                                      ------------  ----------   ----------------  --------------
                  Total interest expense                                  74,013       27,558                  -        101,571
                                                                      ------------  ----------   ----------------  --------------

                  Net interest income                                     93,192       43,641                  -        136,833

Provision for loan losses                                                  5,063        6,200                  -         11,263
                                                                      ------------  ----------   ----------------  --------------
                  Net interest income after
                        provision for loan losses                         88,129       37,441                  -        125,570
                                                                      ------------  ----------   ----------------  --------------

Noninterest income:
       Trust department income                                             8,065            -                  -          8,065
       Fees for services to customers                                      8,695        1,417                  -         10,112
       Net gain/(loss) on securities transactions                         (5,446)          86                  -         (5,360)
       Other                                                               4,102          892                  -          4,994
                                                                      ------------  ----------   ----------------  --------------
                  Total noninterest income                                15,416        2,395                  -         17,811
                                                                      ------------  ----------   ----------------  --------------

Noninterest expense:
       Salaries and employee benefits                                     24,994       13,001                  -         37,995
       Net occupancy and equipment expense                                 9,363        3,953                  -         13,316
       Net other real estate owned expense (income)                         (700)       1,430                  -            730
       Other                                                              11,979        7,846          (h)  366          20,191
                                                                      ------------  ----------   ----------------  --------------
                  Total noninterest expense                               45,636       26,230               366          72,232
                                                                      ------------  ----------   ----------------  --------------
Income before income taxes                                                57,909       13,606              (366)         71,149
Income taxes                                                              19,724        4,735                  -         24,459
                                                                      ------------  ----------   ----------------  --------------
Net income                                                               $38,185        8,871              (366)         46,690
                                                                      ============  ==========   ================  ==============
Earnings per share:
       Basic                                                              $ 0.71         0.59                              0.63
       Diluted                                                              0.68         0.59                              0.61

</TABLE>
See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       52
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME FOR THE 12 MONTHS
ENDED DECEMBER 31, 1999

         TRUSTCO AND COHOES COMBINED
<TABLE>
<CAPTION>

                                                                                                                 TRUSTCO
                                                                                                                 COHOES
                                                                                               PRO FORMA        COMBINED
                                                                    TRUSTCO      COHOES       ADJUSTMENTS       PRO FORMA
                                                                    -------      ------       -----------       ---------
Consolidated Statements of Income:
(in thousands, except per share data)

Interest income:
<S>                                                                 <C>           <C>                              <C>
       Interest and fees on loans                                   $106,734      39,795                  -        146,529
       Interest and dividends on securities available for sale        44,440       2,221                  -         46,661
       Interest and dividends on securities held to maturity                -      3,300                  -          3,300
       Interest on federal funds sold/short-term investments          16,031       1,076                  -         17,107
                                                                  ------------  ----------  ----------------  --------------
                  Total interest income                              167,205      46,392                  -        213,597
                                                                  ------------  ----------  ----------------  --------------

Interest expense:
       Interest on deposits                                           68,041      16,478                  -         84,519
       Interest on short-term borrowings                               5,972       3,734                  -          9,706
                                                                  ------------  ----------  ----------------  --------------
                  Total interest expense                              74,013      20,212                  -         94,225
                                                                  ------------  ----------  ----------------  --------------
                  Net interest income                                 93,192      26,180                  -        119,372

Provision for loan losses                                              5,063       1,825                  -          6,888
                                                                  ------------  ----------  ----------------  --------------
                  Net interest income after                                                               -
                        provision for loan losses                     88,129      24,355                  -        112,484
                                                                  ------------  ----------  ----------------  --------------

Noninterest income:
       Trust department income                                         8,065            -                 -          8,065
       Fees for services to customers                                  8,695         810                  -          9,505
       Net gain/(loss) on securities transactions                     (5,446)       (944)                 -         (6,390)
       Other                                                           4,102       1,999                  -          6,101
                                                                  ------------  ----------  ----------------  --------------
                  Total noninterest income                            15,416       1,865                  -         17,281
                                                                  ------------  ----------  ----------------  --------------

Noninterest expense:
       Salaries and employee benefits                                 24,994       9,601                  -          34,595
       Net occupancy and equipment expense                             9,363       3,034                  -          12,397
       Net other real estate owned expense (income)                    (700)        (140)                 -           (840)
       Other                                                          11,979       4,097            (h) 230          16,306
                                                                  ------------  ----------  ----------------  --------------
                  Total noninterest expense                           45,636      16,592                230          62,458
                                                                  ------------  ----------  ----------------  --------------
Income before income taxes                                            57,909       9,628               (230)         67,307
Income taxes                                                          19,724       3,607                  -          23,331
                                                                  ------------  ----------  ----------------  --------------
Net income                                                           $38,185       6,021               (230)         43,976
                                                                  ============  ==========  ================  ==============
Earnings per share:
       Basic                                                          $ 0.71        0.70                               0.67
       Diluted                                                          0.68        0.70                               0.65

</TABLE>
See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       53
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME FOR THE 12 MONTHS
ENDED DECEMBER 31, 1999

         TRUSTCO, HUDSON AND COHOES COMBINED
<TABLE>
<CAPTION>
                                                                                                                         TRUSTCO
                                                                                     TRUSTCO                               HUDSON
                                                                                     HUDSON                                COHOES
                                                                        PRO FORMA    COMBINED                 PRO FORMA   COMBINED
                                                  TRUSTCO     HUDSON   ADJUSTMENTS   PRO FORMA      COHOES   ADJUSTMENTS  PRO FORMA
                                                 ----------  --------  -----------  ------------  ---------  -----------  ---------
Consolidated Statements of Income:
(in thousands, except per share data)

Interest income:
<S>                                              <C>           <C>                      <C>         <C>                     <C>
     Interest and fees on loans                  $106,734      54,677         -         161,411     39,795           -      201,206
     Interest and dividends on securities
     available for sale                            44,440      14,805         -          59,245      2,221           -       61,466
     Interest and dividends on securities
     held to maturity                                   -       1,321         -           1,321      3,300           -        4,621
     Interest on federal funds sold/short-term
     investments                                   16,031         396         -          16,427      1,076           -       17,503
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------
             Total interest income                167,205      71,199         -         238,404     46,392           -      284,796
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------

Interest expense:
     Interest on deposits                          68,041      24,695         -          92,736     16,478           -      109,214
     Interest on short-term borrowings              5,972       2,863         -           8,835      3,734           -       12,569
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------
             Total interest expense                74,013      27,558         -         101,571     20,212           -      121,783
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------

             Net interest income                   93,192      43,641         -         136,833     26,180           -      163,013
Provision for loan losses                           5,063       6,200         -          11,263      1,825           -       13,088
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------
             Net interest income after
                 provision for loan losses         88,129      37,441         -         125,570     24,355           -      149,925
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------

Noninterest income:
     Trust department income                        8,065           -         -           8,065          -           -        8,065
     Fees for services to customers                 8,695       1,417         -          30,112        810           -       10,922
     Net gain/(loss) on securities transactions    (5,446)         86         -          (5,360)      (944)          -       (6,304)
     Other                                          4,102         892         -           4,994      1,999           -        6,993
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------
             Total noninterest income              15,416       2,395         -          17,811      1,865           -       19,676
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------

Noninterest expense:
     Salaries and employee benefits                24,994      13,001         -          37,995       9,601          -       47,596
     Net occupancy and equipment expense            9,363       3,953         -          13,316       3,034          -       16,350
     Net other real estate owned expense (income)    (700)      1,430         -             730       (140)          -          590
     Other                                         11,979       7,846   (h) 366          20,191       4,097    (h) 230       24,518
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------
             Total noninterest expense             45,636      26,230       366          72,232      16,592        230       89,054
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------
Income before income taxes                         57,909      13,606      (366)         71,149       9,628       (230)      80,547
Income taxes                                       19,724       4,735         -          24,459       3,607                  28,066
                                                 ----------  ---------  --------   -------------  ----------  ----------  ----------
Net income                                        $38,185       8,871      (366)         46,690       6,021       (230)      52,481
                                                 ==========  =========  ========   =============  ==========  ==========  ==========

Earnings per share:
     Basic                                         $ 0.71        0.59                      0.63        0.70                    0.61
     Diluted                                         0.68        0.59                      0.61        0.70                    0.60
</TABLE>

See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       54
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME FOR THE 3 MONTHS
ENDED MARCH 31, 2000

         TRUSTCO AND HUDSON COMBINED
<TABLE>
<CAPTION>

                                                                                                                 TRUSTCO
                                                                                                                 HUDSON
                                                                                               PRO FORMA        COMBINED
                                                                   TRUSTCO       HUDSON       ADJUSTMENTS       PRO FORMA
                                                                 ------------  -----------  ----------------  --------------
Consolidated Statements of Income:
(in thousands, except per share data)

Interest income:
<S>                                                                  <C>           <C>                               <C>
    Interest and fees on loans                                       $27,432       16,592                 -          44,024
    Interest and dividends on securities available for sale           11,225          314                 -          11,539
    Interest and dividends on securities held to maturity                  -        4,102                 -           4,102
       Interest on federal funds sold/short-term investments           3,587            1                 -           3,588
                                                                 ------------  -----------  ----------------  --------------
         Total interest income                                        42,244       21,009                 -          63,253
                                                                 ------------  -----------  ----------------  --------------

Interest expense:
    Interest on deposits                                              16,055        6,831                 -          22,886
    Interest on short-term borrowings                                  1,746        2,138                 -           3,884
                                                                 ------------  -----------  ----------------  --------------
         Total interest expense                                       17,801        8,969                 -          26,770
                                                                 ------------  -----------  ----------------  --------------

         Net interest income                                          24,443       12,040                 -          36,483

Provision for loan losses                                                850        1,500                 -           2,350
                                                                 ------------  -----------  ----------------  --------------
         Net interest income after
            provision for loan losses                                 23,593       10,540                 -          34,133
                                                                 ------------  -----------  ----------------  --------------

Noninterest income:
    Trust department income                                            2,086            -                 -           2,086
    Fees for services to customers                                     2,059          395                 -           2,454
    Net gain/(loss) on securities transactions                        (1,049)            -                -          (1,049)
    Other                                                                706          334                 -           1,040
                                                                 ------------  -----------  ----------------  --------------
         Total noninterest income                                      3,802          729                 -           4,531
                                                                 ------------  -----------  ----------------  --------------
Noninterest expense:
    Salaries and employee benefits                                     6,372        3,671                 -          10,043
    Net occupancy and equipment expense                                2,400        1,207                 -           3,607
    Net other real estate owned expense (income)                         (44)         314                 -             270
    Other                                                              3,194        2,261            (h) 91           5,546
                                                                 ------------  -----------  ----------------  --------------
         Total noninterest expense                                    11,922        7,453                91          19,466
                                                                 ------------  -----------  ----------------  --------------

Income before income taxes                                            15,473        3,816               (91)         19,198
Income taxes                                                           5,203        1,298                 -           6,501
                                                                 ------------  -----------  ----------------  --------------
Net income                                                           $10,270        2,518               (91)         12,697
                                                                 ============  ===========  ================  ==============
Earnings per share:
    Basic                                                             $ 0.19         0.18                              0.17
    Diluted                                                             0.19         0.18                              0.17

</TABLE>
See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       55
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME FOR THE 3 MONTHS
ENDED MARCH 31, 2000

         TRUSTCO AND COHOES COMBINED

<TABLE>
<CAPTION>
                                                                                                                  TRUSTCO
                                                                                                                   COHOES
                                                                                                PRO FORMA         COMBINED
                                                                     TRUSTCO      COHOES       ADJUSTMENTS        PRO FORMA
                                                                    -----------  ----------  -----------------  --------------
Consolidated Statements of Income:
(in thousands, except per share data)

Interest income:
<S>                                                                    <C>          <C>                                <C>
    Interest and fees on loans                                         $27,432      11,002                  -          38,434
    Interest and dividends on securities available for sale             11,225         927                  -          12,152
    Interest and dividends on securities held to maturity                    -         560                  -             560
    Interest on federal funds sold/short-term investments                3,587         113                  -           3,700
                                                                    -----------  ----------  -----------------  --------------
               Total interest income                                    42,244      12,602                  -          54,846
                                                                    -----------  ----------  -----------------  --------------

Interest expense:
    Interest on deposits                                                16,055       4,568                  -          20,623
    Interest on short-term borrowings                                    1,746       1,252                  -           2,998
                                                                    -----------  ----------  -----------------  --------------
         Total interest expense                                         17,801       5,820                  -          23,621
                                                                    -----------  ----------  -----------------  --------------

         Net interest income                                            24,443       6,782                  -          31,225
Provision for loan losses                                                  850         300                  -           1,150
                                                                    -----------  ----------  -----------------  --------------
         Net interest income after
            provision for loan losses                                   23,593       6,482                  -          30,075
                                                                    -----------  ----------  -----------------  --------------

Noninterest income:
    Trust department income                                              2,086           -                  -           2,086
    Fees for services to customers                                       2,059         227                  -           2,286
    Net gain/(loss) on securities transactions                          (1,049)          -                  -          (1,049)
    Other                                                                  706         541                  -           1,247
                                                                    -----------  ----------  -----------------  --------------
         Total noninterest income                                        3,802         768                  -           4,570
                                                                    -----------  ----------  -----------------  --------------

Noninterest expense:
    Salaries and employee benefits                                       6,372       2,970                  -           9,342
    Net occupancy and equipment expense                                  2,400         770                  -           3,170
    Net other real estate owned expense (income)                           (44)       (144)                 -            (188)
    Other                                                                3,194       1,054             (h) 57           4,305
                                                                    -----------  ----------  -----------------  --------------
         Total noninterest expense                                      11,922       4,650                 57          16,629
                                                                    -----------  ----------  -----------------  --------------

Income before income taxes                                              15,473       2,600                (57)         18,016
Income taxes                                                             5,203         945                  -           6,148
                                                                    -----------  ----------  -----------------  --------------
Net income                                                             $10,270       1,655                (57)         11,868
                                                                    ===========  ==========  =================  ==============
Earnings per share:
    Basic                                                               $ 0.19        0.21                               0.18
    Diluted                                                               0.19        0.21                               0.18

</TABLE>
See the note to the Unaudited Pro Forma Combined Financial Information.


                                       56
<PAGE>

UNAUDITED PRO FORMA CONDENSED COMBINED STATEMENTS OF INCOME FOR THE 3 MONTHS
ENDED MARCH 31, 2000

         TRUSTCO, HUDSON AND COHOES COMBINED
<TABLE>
<CAPTION>

                                                                                     TRUSTCO                          TRUSTCO
                                                                                     HUDSON                          HUDSON COHOES
                                                                          PRO FORMA  COMBINED             PRO FORMA   COMBINED
                                                   TRUSTCO      HUDSON   ADJUSTMENTS PRO FORMA   COHOES  ADJUSTMENTS  PRO FORMA
                                                   -------      ------   ----------- ---------   ------  -----------  ---------
Consolidated Statements of Income:
(in thousands, except per share data)

Interest income:
<S>                                                 <C>          <C>                   <C>        <C>                  <C>
     Interest and fees on loans                     $27,432      16,592          -     44,024     11,002        -      55,026
     Interest and dividends on securities
     available for sale                              11,225         314          -     11,539        927        -      12,466
     Interest and dividends on securities
     held to maturity                                     -       4,102          -      4,102        560        -       4,662
     Interest on federal funds sold/short-term
     investments                                      3,587           1          -      3,588        113        -       3,701
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------
                      Total interest income          42,244      21,009          -     63,253     12,602        -      75,855
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------

Interest expense:
     Interest on deposits                            16,055       6,831          -     22,886      4,568        -      27,454
     Interest on short-term borrowings                1,746       2,138          -      3,884      1,252        -       5,136
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------
             Total interest expense                  17,801       8,969          -     26,770      5,820        -      32,590
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------

             Net interest income                     24,443      12,040          -     36,483      6,782        -      43,265

Provision for loan losses                               850       1,500          -      2,350        300        -       2,650
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------
             Net interest income after
                 provision for loan losses           23,593      10,540          -     34,133      6,482        -      40,615
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------
Noninterest income:
     Trust department income                          2,086           -          -      2,086          -        -       2,086
     Fees for services to customers                   2,059         395          -      2,454        227        -       2,681
     Net gain/(loss) on securities transactions      (1,049)          -          -     (1,049)         -        -      (1,049)
     Other                                              706         334          -      1,040        541        -       1,581
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------
             Total noninterest income                 3,802         729          -      4,531        768        -       5,299
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------

Noninterest expense:
     Salaries and employee benefits                   6,372       3,671          -     10,043      2,970        -      13,013
     Net occupancy and equipment expense              2,400       1,207          -      3,607        770        -       4,377
     Net other real estate owned expense (income)       (44)        314          -        270       (144)       -         126
     Other                                            3,194       2,261     (h) 91      5,546      1,054   (h) 57       6,657
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------
         Total noninterest expense                   11,922       7,453         91     19,456      4,650       57      24,173
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------

Income before income taxes                           15,473       3,816        (91)    19,198      2,600      (57)     21,741
Income taxes                                          5,203       1,298          -      6,501        945        -       7,446
                                                  ----------   ---------  ---------  ---------  ---------  -------   ---------
Net income                                          $10,270       2,518        (91)    12,697      1,655      (57)     14,295
                                                  ==========   =========  =========  =========  =========  =======   =========
Earnings per share:
     Basic                                           $ 0.19        0.18                  0.17       0.21                 0.17
     Diluted                                           0.19        0.18                  0.17       0.21                 0.16

</TABLE>
See the notes to the Unaudited Pro Forma Combined Financial Information.


                                       57
<PAGE>

SUMMARY OF PURCHASE ACCOUNTING ADJUSTMENTS MARCH 31, 2000

(in thousands, except per share information)

ACQUISITION OF HUDSON:
ENTRY FOR PURCHASE ACCOUNTING ADJUSTMENTS:

(in thousands, except per share information)
                                                           DR.               CR.
         (a)      Cash                                 $15,583
         (b)      Goodwill                               7,319
         (c)      Other liabilities                      3,398
         (d)      Shareholders' equity                 200,723
         (e)      Other liabilities                                        5,000
         (f)      Shareholders' equity                                     3,357
         (g)      Shareholders' equity                                   218,666

DETAIL OF THE TRUSTCO/HUDSON PURCHASE ACCOUNTING ADJUSTMENTS:
<TABLE>
<CAPTION>

         (a)      To record the net effect of the cash received upon the payoff of the ESOP loan.
                           Dr.      Cash                15,583
                           Cr.      Shareholders' Equity                  15,583

         (b)      Goodwill was calculated as follows:

                  Number of Hudson common shares outstanding              15,619
<S>                                                                        <C>            <C>
                  TrustCo acquisition price                                14.00          218,666
                                                                         -------

                  TrustCo acquisition price                                14.00
                  Estimated weighted average option price                  11.42
                                                                            2.58
                  Estimated number of options outstanding                  1,301
                                                                           3,357            3,357
                  Effective tax rate                                          34%
                                                                           -----
                  Tax benefit of options                                  (1,141)          (1,141)

                  Transaction costs                                        5,000            5,000
                  Effective tax rate                                          34%
                                                                          ------
                  Tax benefit of transaction costs                        (1,700)          (1,700)
                                                                                          -------

                  Amount paid by TrustCo for Hudson                                       224,182

                  Hudson historical equity at March 31, 2000             200,723
                  Unallocated ESOP shares                                 15,583

                  Estimated Hudson RRP's                   566
                  TrustCo acquisition price              14.00
                                                         7,926
                  less:  restricted RRP in equity       (6,289)
                                                       -------
                  Additional RRP value                   1,637
                  Effective tax rate                        34%
                                                        ------
                  RRP tax benefit                          557               557
                                                       =======        ----------
                                                                         216,863          216,863
                                                                                          -------
                  Goodwill associated with acquisition of Hudson                            7,319
                                                                                        =========
</TABLE>

                                       58
<PAGE>
<TABLE>
<CAPTION>

         (c)      Tax benefit of options                                  (1,141)
                  Tax benefit of transaction costs                        (1,700)       All of these amounts
                  RRP tax benefit                                           (557)       were calculated in (B).
                                                                       ---------
                                                                          (3,398)

<S>                                                                        <C>              <C>
                           Dr.      Tax liability                          1,141
                           Cr.      Goodwill                                                1,141
                           Dr.      Tax liability                          1,700
                           Cr.      Goodwill                                                1,700
                           Dr.      Tax liability                            557
                           Cr.      Stockholder's Equity (RRP)               557

         (d) To eliminate Hudson historical Shareholders' equity of $200,723 (debit to equity).

         (e) To record estimate transaction costs of $5 million as a payable.

                           Dr.      Goodwill                               5,000
                           Cr.      Accounts Payable                                        5,000

         (f) The "stock-out" of Hudson options was calculated as follows:

                  Hudson acquisition price                                 14.00
                  Weighted average option price                            11.42
                                                                          ------
                  Additional option value in acquisition                    2.58
                  Number of options outstanding                            1,301
                                                                          ------
                  Value (in thousands)                                     3,357
                                                                           =====

                           Dr.      Goodwill                               3,357
                           Cr.      Shareholders' Equity                                    3,357

         (g) To record the purchase of the outstanding Hudson common stock (credit to equity).

             15,619 Hudson shares outstanding at $14.00 per share = $218,666

         (h) Amortization of goodwill over a 20-year period.

</TABLE>

                                       59
<PAGE>

ACQUISITION OF COHOES:
ENTRY FOR PURCHASE ACCOUNTING ADJUSTMENTS:
<TABLE>
<CAPTION>

                                                           DR.               CR.
         (a)      Cash                                  $8,121
         (b)      Goodwill                               4,590
         (c)      Other liabilities                      3,634
         (d)      Shareholders' equity                 121,136
         (e)      Other liabilities                                        5,000
         (f)      Shareholders' equity                                     4,289
         (g)      Shareholders' equity                                   128,192

DETAIL OF THE TRUSTCO/COHOES PURCHASE ACCOUNTING ADJUSTMENTS:

         (a)      To record the net effect of the cash received upon the payoff of the ESOP loan.
<S>                                                                        <C>             <C>
                           Dr.      Cash                                   8,121
                           Cr.      Shareholders' Equity                                    8,121

         (b)      Goodwill was calculated as follows:

                  Number of Cohoes common shares outstanding               8,012
                  TrustCo acquisition price                                16.00          128,192
                                                                         -------

                  TrustCo acquisition price                                16.00
                  Estimated weighted average option price                  11.50
                                                                            4.50
                  Estimated number of options outstanding                    953
                                                                           4,289            4,289
                  Effective tax rate                                          34%
                                                                           -----
                  Tax benefit of options                                  (1,458)          (1,458)

                  Transaction costs                                        5,000            5,000
                  Effective tax rate                                          34%
                                                                          ------
                  Tax benefit of transaction costs                        (1,700)          (1,700)
                                                                                          -------

                  Amount paid by TrustCo for Cohoes                                       134,323

                  Cohoes historical equity at March 31, 2000             121,136
                  Unallocated ESOP shares                                  8,121

                  Estimated Cohoes RRP's                   348
                  TrustCo acquisition price              16.00
                                                         5,562
                  less:  restricted RRP in equity      (4,161)
                                                       -------
                  Additional RRP value                   1,401
                  Effective tax rate                       34%
                                                        ------
                  RRP tax benefit                          476               476
                                                       =======            ------
                                                                         129,733          129,733
                                                                                          -------
                  Goodwill associated with acquisition of Cohoes                            4,590
                                                                                        =========

</TABLE>

                                       60
<PAGE>
<TABLE>
<CAPTION>

         (c)      Tax benefit of options                                  (1,458)
                  Tax benefit of transaction costs                        (1,700)       All of these amounts
                  RRP tax benefit                                           (476)       were calculated in (B).
                                                                       ---------
                                                                          (3,634)

<S>                                                                        <C>            <C>
                           Dr.      Tax liability                          1,458
                           Cr.      Goodwill                                                1,458
                           Dr.      Tax liability                          1,700
                           Cr.      Goodwill                                                1,700
                           Dr.      Tax liability                            476
                           Cr.      Stockholder's Equity (RRP)                                476

         (d) To eliminate Cohoes historical Shareholders' equity of $121,136 (debit to equity).

         (e) To record estimate transaction costs of $5 million as a payable.

                           Dr.      Goodwill                               5,000
                           Cr.      Accounts Payable                                        5,000

         (f) The "stock-out" of Cohoes options was calculated as follows:

                  TrustCo acquisition price                                16.00
                  Weighted average option price                            11.50
                                                                          ------
                  Additional option value in acquisition                    4.50
                  Number of options outstanding                              953
                                                                          ------
                  Value (in thousands)                                     4,289
                                                                           =====

                           Dr.      Goodwill                               4,289
                           Cr.      Shareholders' Equity                                    4,289

         (g) To record the purchase of the outstanding Cohoes common stock (credit to equity).

             8,012 Cohoes shares outstanding at $16.00 per share = $128,192

         (h) Amortization of goodwill over a 20-year period.


</TABLE>
                                       61
<PAGE>

                     DESCRIPTION OF TRUSTCO'S CAPITAL STOCK

GENERAL

         TrustCo is presently authorized to issue 100,000,000 shares of common
stock, par value $1.00 per share (referred to in this Prospectus as "TrustCo
Common Stock"), and 500,000 shares of preferred stock, par value $10.00 per
share. At June 30, 2000, there were 53,444,265 shares of TrustCo Common Stock
issued and outstanding, and no shares of the preferred stock are issued or
outstanding.

COMMON STOCK

         VOTING RIGHTS

         Holders of TrustCo Common Stock possess exclusive voting rights in
TrustCo, except to the extent that shares of preferred stock issued in the
future may have voting rights, if any. Each holder of shares of TrustCo Common
Stock is entitled to one vote for each share held of record on all matters
submitted to a vote of holders of the TrustCo Common Stock.

         DIVIDEND RIGHTS

         Holders of TrustCo Common Stock are entitled to receive dividends when,
as and if declared by TrustCo's Board of Directors (the "TrustCo Board") out of
funds legally available therefor, subject to any preferential dividend rights
which may attach to preferred stock which may be issued by TrustCo in the
future. Under the New York Business Corporation Law (the "New York Law"),
TrustCo may pay dividends on TrustCo Common Stock unless TrustCo is or would
thereby be made insolvent. Moreover, TrustCo may pay dividends out of surplus
only such that the net assets of TrustCo remaining thereafter is at least equal
to the amount of its stated capital. If any dividend is paid by TrustCo, in
whole or in part, from sources other than earned surplus, the stockholders of
TrustCo must be notified of that fact. The ability of Trustco Bank to pay cash
dividends, which is expected to be TrustCo's principal source of income, is
restricted by applicable banking laws. Such dividends have previously been
TrustCo's principal source of income.

         LIQUIDATION RIGHTS

         In the event of a liquidation, dissolution or winding up of TrustCo,
each holder of TrustCo Common Stock would be entitled to receive, after payment
of all debts and liabilities of TrustCo, a pro rata portion of all assets of
TrustCo available for distribution to holders of the TrustCo Common Stock. If
any preferred stock is issued, the holders thereof may have a priority in
liquidation or dissolution over the holders of the TrustCo Common Stock.

         OTHER CHARACTERISTICS

         Holders of TrustCo Common Stock do not have preemptive rights with
respect to any additional shares of TrustCo which may be issued. The shares of
TrustCo Common Stock presently outstanding are, and the shares of TrustCo Common
Stock to be issued pursuant to the Exchange Offer will be, when issued and
delivered as described herein, duly authorized, validly issued, fully paid and
non-assessable. There are no redemption or sinking fund provisions applicable to
the shares of TrustCo Common Stock.

         TRANSFER AGENT

         Trustco Bank is the transfer agent for shares of TrustCo Common Stock.


                                       62
<PAGE>

PREFERRED STOCK

         None of the 500,000 authorized shares of preferred stock of TrustCo are
issued. The TrustCo Board is authorized to issue the preferred stock and to fix
and state voting powers, designations, preferences or other special rights of
such shares and the qualifications, limitations and restrictions thereof. The
preferred stock may rank prior to the common stock as to dividend rights or
liquidation preference, or both, and may have full or limited voting rights.
The TrustCo Board has no present intention to issue any of the preferred stock.

                      DESCRIPTION OF HUDSON'S CAPITAL STOCK

GENERAL

         The following description of Hudson's capital stock is based on
information contained in the Annual Report on Form 10-K of Hudson for the year
ended March 31, 2000.

         Hudson is authorized to issue 40,000,000 shares of common stock, par
value $.01 per share (referred to in this Prospectus as "Hudson Common Stock"),
and 5,000,000 shares of preferred stock, par value $.01 per share. At June 8,
2000, there were 15,360,560 shares of Hudson Common Stock issued and outstanding
and no shares of the preferred stock were issued and outstanding.

COMMON STOCK

         The holders of shares of Hudson Common Stock are entitled to receive
dividends from funds legally available therefor when, as and if declared by the
Hudson Board, and are entitled upon liquidation to receive pro rata the net
assets of Hudson after satisfaction in full of the prior rights of creditors of
Hudson and holders of any shares of preferred stock.

         The holders of shares of Hudson Common Stock are generally entitled to
one vote for each share of Hudson Common Stock held on all matters as to which
stockholders are entitled to vote, subject to the 10% Limit. The holders of
Hudson Common Stock do not have cumulative voting rights.

         ___________ is the transfer agent and registrar for the shares of
Hudson Common Stock.

PREFERRED STOCK

         None of the 5,000,000 authorized shares of preferred stock of Hudson
are issued. The Hudson Board is authorized to issue the preferred stock from
time to time in one or more series with such designation, powers, preferences
and rights, including voting rights, and any qualifications, limitations or
restrictions thereof, as may determined by the Hudson Board. The preferred stock
may rank prior to the common stock as to dividend rights or liquidation
preference, or both, and may have full or limited voting rights.

                        COMPARISON OF SHAREHOLDER RIGHTS

         The rights of holders of Hudson Common Stock who receive TrustCo Common
Stock in the Exchange Offer will be governed by the New York Law, the state in
which TrustCo is incorporated, and by TrustCo's Amended and Restated Certificate
of Incorporation, as amended ("TrustCo's Certificate"), and Bylaws, as amended,
and other corporate documents of TrustCo. The rights of holders of Hudson Common
Stock, which are governed by the DGCL and Hudson's Certificate and Bylaws, as
amended, differ in certain respects from the rights which such holders would
have as stockholders of TrustCo. A


                                       63
<PAGE>

summary of the material differences between the respective rights of Hudson and
TrustCo stockholders is set forth below.

STOCKHOLDER VOTE REQUIRED FOR CERTAIN TRANSACTIONS

         BUSINESS COMBINATIONS

                  TRUSTCO

         The New York Law generally requires that mergers, consolidations and
sales, leases, exchanges, or other distributions of all of the assets of a
corporation be approved by a vote of not less than two-thirds of all outstanding
shares entitled to vote on such transactions. Moreover, generally, holders of
shares of any class or series have the right to vote, and to vote as a class, on
certain mergers and consolidations which contain provisions that exclude or
limit their right to vote, or adversely affect certain of their rights, or
authorize shares which have a preference over their shares. In such cases, in
addition to the vote of the holders of two-thirds of all outstanding shares
entitled to vote thereon, the merger or consolidation must be approved by the
holders of a majority of all outstanding shares of such class or series.

         TrustCo's Certificate includes a so-called "fair consideration"
provision, which provides that a "business combination" (including a merger,
consolidation or acquisition of substantially all assets) involving TrustCo, or
any subsidiary of TrustCo, with any person or entity beneficially owning
directly or indirectly more than 5% of TrustCo's outstanding voting stock (a
"TrustCo 5% stockholder") may not be consummated, even if the normal statutory
requirements are met, unless: (i) the transaction is approved by at least
two-thirds of the members of the TrustCo Board who are not affiliated with the
TrustCo 5% stockholder; or (ii) the transaction meets certain minimum price
requirements (in either of which cases only the normal stockholder and director
approval requirements of the New York Law would govern the transaction). The
primary purpose of TrustCo's "fair consideration" provision is to provide
additional safeguards for the remaining stockholders in the event that an
individual or entity becomes a majority stockholder of TrustCo. If TrustCo comes
under the control of a single person or entity, substantial inequities could
befall the minority stockholders. Accordingly, this "fair consideration"
provision was included in TrustCo's Certificate to make it more likely that any
acquisition of TrustCo will involve payment of a fair price to all stockholders
of TrustCo.

                  HUDSON

         Hudson's Certificate provides for a greater than majority stockholder
approval requirement for certain business combinations with interested
stockholders. Under Hudson's Certificate, certain business combinations with an
interested stockholder require the affirmative vote of the holders of at least
80% of the voting power of the outstanding shares of stock of Hudson entitled to
vote in the election of directors. Generally, an interested stockholder is any
person, other than Hudson or any subsidiary of Hudson, that is the beneficial
owner, directly or indirectly, of more than 10% of the voting power of the
outstanding voting stock of Hudson. The business combination provisions relating
to interested stockholders also apply to affiliates of interested stockholders.
Business combinations subject to the 80% stockholder approval requirement
include: (i) any merger or consolidation of Hudson or any subsidiary of Hudson
with an interested stockholder or affiliate thereof; (ii) any sale, lease,
exchange, mortgage, pledge, transfer or other disposition of assets of Hudson or
any Hudson subsidiary to an interested stockholder having an aggregate fair
market value equaling or exceeding 25% or more of the combined assets of Hudson
and its subsidiaries; (iii) the issuance or transfer by Hudson or any Hudson
subsidiary of any stock of Hudson or any Hudson subsidiary to an interested
stockholder for any property equaling or exceeding 25% of the combined assets of
Hudson and any Hudson subsidiaries; (iv) the adoption of any plan for the
liquidation or dissolution of Hudson proposed by or on behalf of an interested
stockholder or affiliate thereof; and (v) any reclassification of securities or
recapitalization of Hudson, or any merger or


                                       64
<PAGE>

consolidation of Hudson with any of its subsidiaries or any other transaction
that has the effect of increasing the proportionate share of the outstanding
shares of any class of equity or convertible securities of Hudson or any
subsidiary of Hudson directly or indirectly owned by an interested stockholder
or affiliate thereof. A business combination with an interested stockholder may
avoid the 80% stockholder approval requirement, needing only an affirmative vote
of a majority of the voting power of the outstanding shares of stock of Hudson
entitled to vote in the election of directors, if: (a) the business combination
does not involve cash or other consideration being received by the stockholders
of Hudson solely in their capacity as stockholders of Hudson and the business
combination has been approved by a majority of the disinterested directors of
Hudson; or (b) the business combination has been approved by a majority of the
disinterested directors of Hudson, or each of the following conditions are met:
(1) the fair market value of the consideration received per share by the holders
of Hudson Common Stock equals or exceeds the higher of certain fair price
determinations; (2) there has been no reduction of dividends or failure to pay
dividends after the time the interested stockholder became an interested
stockholder, except as approved by a majority of disinterested directors; (3)
the interested stockholder and its affiliates have not become the beneficial
owners of any additional shares of voting stock of Hudson after the interested
stockholder became an interested stockholder; (4) the interested stockholder has
not received the benefit, directly or indirectly, of any loans, advances,
guarantees, pledges or other financial assistance; and (5) a proxy or
information statement describing the proposed business combination and complying
with the requirements of the 1934 Act has been mailed to stockholders of Hudson
at least 30 days prior to the consummation of such business combination.

         REMOVAL OF DIRECTORS

                  TRUSTCO

         The New York Law provides that any or all of the directors of TrustCo
may be removed for cause by a vote of the stockholders. TrustCo's Certificate
specifies that an affirmative vote of at least a majority of its outstanding
stock is needed to approve any matter on which stockholders are entitled to
vote.

                  HUDSON

         Hudson's Certificate provides that any director or the entire Hudson
Board may be removed from office at any time, but only for cause and only by the
holders of at least 80% of the voting power of all of the outstanding shares of
capital stock of Hudson entitled to vote generally in the election of directors.
Hudson's 80% stockholder vote requirement for removal of directors precludes a
majority stockholder from circumventing Hudson's classified Hudson Board by
decreasing the size of the Hudson Board until its nominees have a numerical
majority or by removing directors not up for election, filling the resulting
vacancy with its nominees, and thereby gaining control of the Hudson Board.
Stockholders of Hudson may not remove directors without cause, making it more
difficult for a majority stockholder to control the Hudson Board. The
restriction on director removal found in Hudson's Certificate also makes it more
difficult for stockholders of Hudson to change the composition of the Hudson
Board even where the stockholders believe in good faith that such a change would
be beneficial to Hudson and to the stockholders of Hudson.

         AMENDMENTS TO CERTIFICATE OF INCORPORATION AND BYLAWS

                  TRUSTCO

         TrustCo's Certificate requires an affirmative vote of at least
two-thirds of TrustCo's voting stock to change, modify, or repeal any provision
of TrustCo's Certificate or Bylaws.


                                       65
<PAGE>

                  HUDSON

         The DGCL provides that the certificate of incorporation of a Delaware
corporation may be amended only if first approved by the corporation's board of
directors and thereafter by a majority of the outstanding stock entitled to vote
thereon. The DGCL also provides that, if a greater than majority stockholder
vote is required to effect an action under a certain article of a Delaware
corporation's certificate of incorporation, then amending such an article
likewise requires such a greater than majority stockholder vote.

         Hudson's Certificate provides that Hudson may amend or repeal any
provision contained in Hudson's Certificate in the manner prescribed described
above pursuant to the DGCL. Hudson's Certificate further provides that the
affirmative vote of at least 80% of the voting power of all of the outstanding
shares of the capital stock of Hudson entitled to vote generally in the election
of directors (after giving effect to the 10% Limit described herein under the
caption "COMPARISON OF SHAREHOLDER RIGHTS -- Anti-takeover Statutes and
Provisions -- HUDSON") is required to amend or repeal the provisions of: (i)
Article THIRTEENTH (relating to amending the Hudson's Certificate); (ii)
Sections B or C of Article FOURTH (relating to voting restrictions imposed on
stockholders owning in excess of 10% of the outstanding shares of Hudson Common
Stock); (iii) Sections C and D of Article FIFTH (relating to stockholder special
meetings and stockholder action by written consent); (iv) Article SIXTH
(relating to the number, classification, qualification, disqualification,
director nominations, filling of vacancies and removal of directors of Hudson);
(v) Article SEVENTH (relating to amending the Bylaws); (vi) Article EIGHTH
(relating to approval of business combinations with an interested stockholder or
its affiliates); (vii) Article TENTH (relating to Hudson's purchase of stock
from an interested person); and (viii) Article ELEVENTH (relating to
indemnification).

         Hudson's Bylaws provide that the Hudson Board may amend or repeal the
Bylaws upon the vote of a majority of the whole board thereof. The stockholders
of Hudson, upon the affirmative vote of the holder of at least 80% of the voting
power of the voting stock (after giving effect to the 10% Limit), also have the
power to amend or repeal the Bylaws of Hudson.

         VOTING RIGHTS

                  TRUSTCO

         Holders of TrustCo Common Stock are entitled to one vote per share in
the election of directors and in all other matters to be voted upon by the
stockholders generally. A stockholder of TrustCo may vote in person or by proxy.
Directors of TrustCo are elected by a plurality of the stockholder votes cast
and stockholders of TrustCo Common Stock are not entitled to cumulative voting
in the election of directors. All other matters voted on by stockholders are
determined by a majority of the stockholder votes cast, except those matters
specifically requiring a greater than majority vote pursuant to the New York Law
or TrustCo's Certificate.

                  HUDSON

         In accordance with the DGCL, and as provided in the Bylaws of Hudson,
each outstanding share of Hudson Common Stock is entitled to one vote on each
matter voted on at a stockholders' meeting. A stockholder of Hudson may vote in
person or by proxy. Directors of Hudson are elected by a plurality of the
stockholder votes cast, and stockholders of Hudson are not entitled to
cumulative voting in the election of directors. All other matters voted on by
stockholders are determined by a majority of the stockholder votes cast, except
those matters specifically requiring a greater than majority vote pursuant to
the DGCL or Hudson's Certificate. Notwithstanding the foregoing, Article FOURTH,
Section C, of Hudson's Certificate provides that no person who beneficially owns
more than 10% of the outstanding


                                       66
<PAGE>

shares of Hudson Common Stock may vote shares in excess of that limit. See
"COMPARISON OF SHAREHOLDER RIGHTS --Anti-Takeover Statutes and Provisions --
HUDSON."

SPECIAL MEETING OF STOCKHOLDERS; STOCKHOLDER ACTION BY WRITTEN CONSENT

         TRUSTCO

         The New York Law provides that special meetings of the stockholders of
a New York corporation may be called by the board of directors and by such
person or persons as may be so authorized by the certificate of incorporation or
the bylaws. TrustCo's Certificate provides that special meetings of stockholders
of TrustCo may be called at the request of at least two-thirds of the shares of
TrustCo Common issued and outstanding. In addition, the Bylaws provide that a
special meeting of the stockholders may be called at any time by the TrustCo
Board or by TrustCo's Chief Executive Officer.

         Pursuant to the New York Law, stockholders of TrustCo may take any
action without a meeting by written consent, which consent must set forth the
action so taken and be signed by the holders of all of the outstanding shares
entitled to vote thereon. Written consent given by the holders of all
outstanding shares entitled to vote has the same effect as a unanimous vote of
stockholders.

         HUDSON

         In accordance with the DGCL, Hudson's' Bylaws provides that special
meetings of stockholders of Hudson may be called only by the Hudson Board
pursuant to a resolution adopted by a majority of the total number of directors
which Hudson would have if there were no vacancies on the Hudson Board.
Hudson's' Bylaws also provides that any action required or permitted to be taken
by the stockholders of Hudson must be effected at a duly called annual or
special stockholders' meeting and may not be effected by any consent in writing
by such stockholders. The DGCL, in the absence of this provision, permits action
by written consent of stockholders signed by the holders of the number of shares
that would be required to effect the action at a meeting. Hudson's' restriction
against stockholders' ability to call a special stockholders' meeting and
against stockholder action by written consent is more restrictive than TrustCo's
2/3 stockholder vote required to call a special meeting and stockholders' act by
written consent of all of TrustCo's stockholders. Hudson's more restrictive
provisions preclude attempts by stockholders to disrupt the business of Hudson
between annual stockholders' meetings, and make it impossible for a stockholder
or stockholder group to take action where such action is opposed by a majority
of the Hudson Board and management of Hudson. Hudson's' more restrictive
provisions also preclude the removal of directors, even if cause exists or a
director becomes disqualified, until the next annual stockholders' meeting,
where such removal is opposed by a majority of the Hudson Board.

DISSENTERS' RIGHTS

         TRUSTCO

         The New York Law provides that dissenting stockholders are entitled to
receive payment of the "fair value" of their shares in connection with certain
mergers or consolidations of which the corporation is a party and sales or
exchanges of all or substantially all of the assets of a corporation. Under the
New York Law, dissenting stockholders: (i) may withdraw their notice of election
to dissent within certain specific time periods prior to their acceptance of a
corporation's offer to purchase their shares; (ii) are entitled to an advance
payment which accompanies a corporation's offer to purchase their shares, if the
corporate action has been consummated; and (iii) bear their own costs and
expenses as to any court proceeding for a determination of the fair value of
their shares.


                                       67
<PAGE>

         HUDSON

         The DGCL provides that, unless the certificate of incorporation of a
Delaware corporation provides otherwise, no dissenters' appraisal rights are
available to holders of shares that are listed on a national securities exchange
or designated as a national market system security on an interdealer quotation
system by NASD, or are held of record by more than 2,000 stockholders. As the
shares of Hudson Common Stock are a national market system security traded on
Nasdaq and Hudson's Certificate does not provide for dissenters' appraisal
rights, holders of Hudson Common Stock have no dissenters' appraisal rights in
any merger, consolidation or disposition of assets. Stockholders of Hudson may
not, therefore, assert dissenters' appraisal rights in connection with the
Exchange Offer or the TrustCo-Hudson Merger.

ANTI-TAKEOVER STATUTES AND PROVISIONS

         TRUSTCO

         In general, the New York Law prohibits any business combination (e.g.
mergers, consolidations, and acquisitions of substantially all of the assets)
between a New York corporation and an "interested stockholder" (defined as any
owner of 20% or more of the voting stock of such corporation) unless the
corporation's board of directors has approved the business combination or the
stock acquisition by which the related party's interest reached 20% (the "Stock
Acquisition") prior to the date of the Stock Acquisition. This restriction
applies for five years after the date of the Stock Acquisition. Thereafter, the
corporation may enter into a business combination with the related party: (i) if
the combination is approved by a majority of the corporation's voting stock
beneficially owned by stockholders other than the related party; or (ii) if such
disinterested stockholders receive a price for their shares equal to or greater
than a price determined in accordance with a statutory formula intended to
assure that stockholders receive an equitable price in the business combination.
As a New York corporation, TrustCo and any potential acquiror of TrustCo would
be subject to this provision.

         TrustCo's Certificate and Bylaws contain several provisions which may
be deemed to be "anti-takeover" in nature. TrustCo's Certificate contains a
"fair consideration" provision which is discussed under "COMPARISON OF
SHAREHOLDER RIGHTS -- Stockholder Vote Required for Certain Transactions --
BUSINESS COMBINATIONS -- TRUSTCO." TrustCo's Certificate also provides for a
classified board of directors, under which one-third of the directors are
elected to three-year terms at each annual stockholders' meeting. In effect, the
classified board may increase the time required for any one or more persons
owning a majority or controlling block of stock to elect a majority of the
directors. Without a classified board, a change in control can be accomplished
at a single annual stockholders' meeting. In contrast, with a classified board,
at least two successive annual stockholders' meetings may be required to effect
a change in control. The TrustCo Board and management of TrustCo believe that a
classified board may help to moderate the pace of any change in control of the
TrustCo Board and, by increasing the stability of the TrustCo Board, may also
increase its effectiveness. Conversely, the additional time required to obtain
control of the TrustCo Board also tends to discourage a tender offer or takeover
bid, many of which are made at premium prices to stockholders.

         HUDSON

         The DGCL has a "freeze provision" that generally prohibits any business
combination, such as a merger or consolidation, between a Delaware corporation
and an interested stockholder (which is generally defined as any owner of 15% or
more of the outstanding voting stock of a corporation) for three years after the
date on which such stockholder becomes an interested stockholder. The Delaware
statute provides that if any of the following conditions are met, Delaware's
three-year freeze provision will not apply: (i) prior to such date the board of
directors of the corporation approved either the business


                                       68
<PAGE>

combination or the transaction by which the interested stockholder became an
interested stockholder; (ii) upon consummation of the transaction which resulted
in the stockholder becoming an interested stockholder, the interested
stockholder owned at least 85% of the voting stock of the corporation
outstanding at the time the transaction commenced (excluding shares held by
persons who are directors and also officers and by certain employee stock
ownership plans); or (iii) on or subsequent to such date the business
combination is approved by the board of directors of the corporation and
authorized at an annual or special meeting of the stockholders by the
affirmative vote of at least two-thirds of the outstanding voting stock of the
corporation which is not owned by the interested stockholder.

         Under the terms of Hudson's Certificate, a record owner of Hudson
Common Stock who beneficially owns, directly or indirectly, in excess of 10% of
the outstanding shares of Hudson Common Stock is not entitled to vote the shares
held in excess of 10% of the outstanding shares of Hudson Common Stock. The
number of shares which may be voted by any record owner owning shares in excess
of the 10% Limit is equal to the total number of votes which a single record
owner of all Hudson Common Stock owned by such person would be entitled to cast,
multiplied by a fraction, the numerator of which is the number of shares
beneficially owned by such person and owned of record by such record owner and
the denominator of which is the total number of shares of Hudson Common Stock
beneficially owned by such person owning shares in excess of the 10% Limit.

         As with TrustCo, Hudson's Certificate provides that the Hudson Board is
divided into three classes, as nearly equal in number as possible, which are
elected for staggered three-year terms. For additional discussion of provisions
which may be deemed to have an anti-takeover effect, see "COMPARISON OF
SHAREHOLDER RIGHTS -- Special Meeting of Stockholders; Stockholder Action by
Written Consent -- HUDSON", and "-- Stockholder Vote Required for Certain
Transactions -- REMOVAL OF DIRECTORS -- HUDSON."

INDEMNIFICATION

         TRUSTCO

         The New York Law contains provisions permitting indemnification of
officers and directors so long as such persons acted in good faith, and in a
manner he or she reasonably believed to be in, or not opposed to, the best
interests of the corporation and, with respect to a criminal proceeding, if he
or she had no reason to believe his or her conduct was unlawful. TrustCo's
Bylaws generally permit indemnification, PROVIDED, HOWEVER, that no
indemnification will be made to any officer or director if a judgement or final
adjudication establishes that his or her acts were committed in bad faith or
were the result of an act of deliberate dishonesty, and were material to the
cause of action so adjudicated, or that he or she personally gained a financial
profit or other advantage to which he or she was not entitled.

         HUDSON

         The DGCL grants Delaware corporations broad indemnification powers,
including the authority to provide forms of indemnification in addition to the
types of indemnification specifically set forth within the DGCL. Hudson's
Certificate provides mandatory indemnification for each person who was or is
made a party or threatened to be made a party to or is otherwise involved in any
proceeding by reason of the fact that he or she is or was a director or officer
of Hudson or a subsidiary of Hudson or is or was serving at the request of
Hudson as a director, officer, employee or agent of another corporation. Such
mandatory indemnification covers the alleged action whether or not such person
was acting in their official capacity. Such indemnification covers all expense,
liability and loss, including attorneys' fees, judgments, fines, excise taxes or
penalties and amounts paid in settlement reasonably incurred by the indemnitee
in connection with the proceeding. Hudson's Certificate provides indemnification
to an indemnitee who initiates a proceeding only if the proceeding was
authorized by the Hudson Board or was


                                       69
<PAGE>

initiated to enforce indemnification rights. Hudson's Certificate provides for
payment of indemnification expenses in advance of a proceeding's final
disposition provided the indemnitee first delivers to Hudson an undertaking by
or on behalf of such indemnitee to repay all amounts so advanced if it is
ultimately determined that the indemnitee is not entitled to be indemnified for
such expense. In addition to mandatory indemnification, Hudson may in accordance
with Hudson's Certificate, to the extent authorized by the Hudson Board, grant
rights to indemnification and to the advancement of indemnification expenses to
any employee or agent of Hudson to the fullest extent that Hudson is authorized
to indemnify and advance expenses to the directors and officers of Hudson.
Hudson's Certificate also authorizes Hudson to maintain insurance to protect
Hudson and any director, officer, employee or agent of Hudson or another
corporation against any expense, liability or loss, whether or not Hudson would
have the power to indemnify such person against such expense, liability or loss
under the DGCL.

LIMITATION OF LIABILITY OF DIRECTORS

         TRUSTCO

         TrustCo's Certificate provides that, to the fullest extent that the New
York Law permits elimination or limitation of the liabilities of directors, no
director of TrustCo will be liable to the corporation or its stockholders for
any breach of duty in such capacity. The New York Law provides that a director
will not be liable if he or she performed his or her duties as a director,
including duties as a member of any committee thereof, in good faith and with
that degree of care which an ordinarily prudent person in a like position would
use under similar circumstances.

         HUDSON

         Hudson's Certificate provides that a director of Hudson will not be
personally liable to Hudson or the stockholders of Hudson for monetary damages
for breach of fiduciary duty as a director, except for liability resulting from:
(i) any breach of the director's duty of loyalty to Hudson or the stockholders
of Hudson; (ii) acts or omissions not in good faith or which involve intentional
misconduct or a knowing violation of law; (iii) unlawful payment of dividend or
unlawful stock purchases or redemptions; or (iv) any transaction from which the
director derived an improper personal benefit. Stockholders of Hudson do not,
therefore, have a cause of action against a director based upon negligent
business decisions, including those relating to attempts to acquire control of
Hudson. Hudson's Certificate does not, however, preclude all equitable remedies
for breach of the duty of care, although such remedies might not be available as
a practical matter. Hudson's limitation of director liability may reduce the
likelihood of derivative litigation against directors and discourage or deter
stockholders or management from bringing a lawsuit against directors for breach
of their duty of care, even though such an action, if successful, might
otherwise have been beneficial to Hudson and its stockholders.

CONSIDERATION OF NON-STOCKHOLDER INTERESTS

         TRUSTCO

         The New York Law specifically authorizes directors, in considering the
best interests of a corporation, to consider the short-term and long-term
interests of the corporation and its stockholders as well as the short-term or
long-term effects of any action upon: (i) the corporation's prospects for
potential growth, development, productivity and profitability; (ii) the
corporation's current employees; (iii) the corporation's retired employees and
other beneficiaries receiving or entitled to receive retirement, welfare or
similar benefits from or pursuant to any plan sponsored, or agreement entered
into, by the corporation; (iv) the corporation's customers and creditors; and
(v) the ability of the corporation to provide, as a going concern, goods,
services, employment opportunities and employment benefits and


                                       70
<PAGE>

otherwise to contribute to the communities in which it does business. The New
York Law does not create any duties of any director to any person or entity to
consider or afford any particular weight to any of the foregoing criteria, nor
does it abrogate any duty of the directors, either statutory or recognized by
common law or court decisions.

         HUDSON

         The DGCL does not address a Delaware director's ability to consider
non-stockholder interests when discharging his or her duties. Delaware case law,
however, provides that in discharging his or her responsibilities, a board of
directors of a Delaware corporation must limit consideration of non-stockholder
interests, and that a board of directors of a Delaware corporation may consider
non-stockholder interests only if those interests are rationally related to
benefits accruing to the stockholders of the Delaware corporation. REVLON, INC.
V. MACANDREWS & FORBES HOLDINGS, INC., 506 A.2d 173 (Del. 1986). Delaware case
law further provides that, when a board of directors of a Delaware corporation
decides to sell a Delaware corporation, concern for non-stockholder interests is
inappropriate. ID.

         Hudson's Certificate grants the Hudson Board broader discretion than
that authorized by Delaware case law. Specifically, Hudson's Certificate
provides that the Hudson Board may, when evaluating any tender or exchange
offer, any offer to merge or consolidate Hudson with another entity or any offer
to purchase all or substantially all of the assets of Hudson, give due
consideration to all relevant factors including, without limitation, the social
and economic effect of acceptance of any such offer on present and future
customers and employees of Hudson and subsidiaries of Hudson, the communities in
which Hudson and its subsidiaries operate or are located, and the ability of
Hudson and its subsidiaries to fulfill their respective corporate or banking
objectives.

                                  LEGAL OPINION

         The legality of the TrustCo Common Stock offered hereby will be passed
upon by the law firm of Lewis, Rice & Fingersh, L.C., St. Louis, Missouri.
Members of, and attorneys employed by, Lewis, Rice & Fingersh, L.C., owned,
directly or indirectly, approximately 11,041 shares of TrustCo Common Stock.

                                     EXPERTS

         The consolidated financial statements contained in TrustCo's Annual
Report on Form 10-K for the year ended December 31, 1999 have been audited by
KPMG LLP and are incorporated by reference in this document in reliance on that
firm's expertise in accounting and auditing.

         The Exchange Agent for the Exchange Offer is:

                        CHASEMELLON SHAREHOLDER SERVICES

By mail:                    By hand:                   By overnight:

Reorganization Department   Reorganization Department  85 Challenger Road
P.O. Box 3301               120 Broadway, 13th Floor   Mail Stop - Reorg
South Hackensack, NJ 07606  New York, NY 10271         Ridgefield Park, NJ 07660

Facsimile (for eligible institutions only): (201) 296-4293

Confirm facsimile by telephone ONLY:        (201) 296-4860


                                       71
<PAGE>

                                   APPENDIX A

                                    IMPORTANT

 PLEASE SIGN, DATE AND, IF NECESSARY, HAVE YOUR SIGNATURE GUARANTEED IN THE BOX
 ENTITLED "SIGN HERE" ON PAGE 3 OF THIS DOCUMENT WHERE INDICATED BY THE ARROWS.

                              LETTER OF TRANSMITTAL

                                TO TENDER SHARES

                                       OF

                                  COMMON STOCK

                                       OF

                           HUDSON RIVER BANCORP, INC.

                                 (THE "COMPANY")

                         PURSUANT TO THE EXCHANGE OFFER

                           DATED ______________, 2000

                                       BY

                              TRUSTCO BANK CORP NY



                      To: CHASEMELLON SHAREHOLDER SERVICES

                                 (___) ________


                BY MAIL OR BY HAND:           BY FACSIMILE COPY:










<PAGE>

                       TENDER, PROXY AND POWER OF ATTORNEY

         The undersigned, the registered holder of shares of common stock (the
"Shares") of the Company as described in the Exchange Offer referred to above,
or the legal representative of the registered holder, hereby accepts, with
respect to the Shares tendered, the offer of TrustCo Bank Corp NY ("Offeror"),
receipt of which is hereby acknowledged, to acquire the Shares upon the terms
and subject to the conditions of the Exchange Offer.

         Accordingly, subject to and effective upon the acquisition by Offeror
(pursuant to the Exchange Offer) of the Shares tendered herewith, the
undersigned hereby assigns and transfers to or upon the order of Offeror such
Shares, including any and all declared but unpaid dividends and other
distributions on such Shares, and hereby constitutes and appoints ChaseMellon
Shareholder Services (the "Exchange Agent") the true and lawful agent and
attorney-in-fact of the undersigned with respect to such Shares with full power
of substitution (such power of attorney is deemed to be an irrevocable power
coupled with an interest) to: (i) deliver the Shares, together with any and all
evidences of transfer and authenticity which may be required by the Exchange
Agent, to or upon the order of Offeror upon receipt by the Exchange Agent, as
the undersigned's agent, of the shares of Offeror's common stock as set forth in
the Exchange Offer; (ii) do all things necessary and appropriate for the
transfer of such Shares on the Company's books; (iii) exercise all rights of
legal and beneficial ownership of such Shares to which the undersigned would be
entitled by virtue of the ownership of such Shares, in accordance with the terms
of the Exchange Offer; and (iv) receive all dividends and other distributions
due or rights issued in respect to the Shares to which the undersigned would be
entitled by virtue of the ownership of such Shares, all in accordance with the
terms of the Exchange Offer. Upon such acceptance for acquisition, all prior
proxies and powers of attorney given by the undersigned with respect to such
Shares will, without further action, be revoked and no subsequent proxies or
powers of attorney may be given and, if given, will not be deemed effective.

         The undersigned hereby represents and warrants that the undersigned has
full power and authority to tender, exchange, assign and transfer the Shares and
that Offeror will acquire good and unencumbered title thereto, free and clear of
all liens, restrictions, charges, voting agreements and encumbrances and not
subject to any adverse claim. The undersigned will, upon request, execute and
deliver any additional documents deemed by the Exchange Agent or Offeror to be
necessary or desirable to complete the exchange, assignment and transfer of the
Shares.

         All authority herein conferred or agreed to be conferred survives the
death or incapacity of the undersigned and any obligations of the undersigned
hereunder are binding upon the heirs, personal representatives, successors and
assigns of the undersigned. Except as stated in the Exchange Offer, this tender
is irrevocable.

         The undersigned understands that acceptance of the offer contained in
the Exchange Offer constitutes an agreement between the undersigned and Offeror,
in accordance with the terms and conditions precedent of the Exchange Offer,
only when a duly executed and properly completed copy of this Letter of
Transmittal, together with any other required documents (including, but not
limited to, the Shares), are received by the Exchange Agent. The undersigned
further acknowledges receipt and has read the contents of the Exchange Offer and
recognizes the various conditions to the offer that are set forth in the
Exchange Offer.

         Unless otherwise indicated herein under "Special Payment Instructions,"
please issue the shares of Offeror's common stock as set forth in the Exchange
Offer in the name of the undersigned. Similarly, please mail such shares, unless
otherwise indicated herein under "Special Delivery Instructions," and/or send
any appropriate documents if a Share is not exchanged, to the undersigned at the
address shown below the undersigned's signature. The undersigned recognizes that
Offeror has no obligation to transfer any Shares from the name of the registered
holder thereof if Offeror does not acquire such Shares pursuant to the Exchange
Offer.



                                   A-2

<PAGE>

                              DESCRIPTION OF SHARES
                    [to be completed by the tendering Holder]

NAME AND ADDRESS OF REGISTERED HOLDER    CERTIFICATE NUMBER     NUMBER OF SHARES
-------------------------------------    ------------------     ----------------



                                  SIGN HERE
              --------------------------------------------------


              --------------------------------------------------
                          (Signature(s) of Owner(s))


                       Dated: ________________ , 2000


(Must be signed by registered holder(s) exactly as name(s) appear(s) under
"Description of Shares" above. If signature is by a person acting in
fiduciary capacity or as the registered owner's legal representative, please
set forth full title. See Instruction 4.)

Name(s) ______________________________________________________________________

______________________________________________________________________________
                                (Please Print)

______________________________________________________________________________
                                  (Address)

______________________________________________________________________________
                              (Include Zip Code)

Phone Number: (_____) ________________________________________________________
Taxpayer Identification or
 Social Security Number: _____________________________________________________

SIGNATURE(S) GUARANTEED
______________________________________________________________________________

______________________________________________________________________________
(See Instruction 1)


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

                        SPECIAL PAYMENT INSTRUCTIONS

To be completed ONLY if shares of Offeror's common stock and/or the check for
cash payable in lieu of fractional shares is to be issued in the name of
someone other than the registered owner.

Name: _______________________________________________________________

Address: ____________________________________________________________
                             (Include Zip Code)

         ____________________________________________________________
                  Tax Identification or Social Security Number


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

                        SPECIAL DELIVERY INSTRUCTIONS

To be completed ONLY if shares of Offeror's common stock and/or the check for
cash payable in lieu of fractional shares is to be sent to someone other than
the registered owner at any address other than that shown under "Description
of Shares" above.

Name: _______________________________________________________________

Address: ____________________________________________________________

         ____________________________________________________________
                             (Include Zip Code)

         ____________________________________________________________
                  Tax Identification or Social Security Number


                                       A-3


<PAGE>

                                INSTRUCTIONS

                               FORMING PART OF THE
                   TERMS AND CONDITIONS OF THE EXCHANGE OFFER

1. SIGNATURE GUARANTEE. No signature guarantee is required if this Letter of
Transmittal is signed by the registered owner of the Shares tendered with this
Letter of Transmittal and delivery is to be made directly to such registered
owner. If such registered owner has completed either the box entitled "Special
Payment Instructions" or the box entitled "Special Delivery Instructions" on the
previous page, all signatures on this Letter of Transmittal must be guaranteed
by a firm which is a member of a registered national securities exchange or of
the National Association of Securities Dealers, Inc. or by a commercial bank or
trust company having an office or correspondent in the United States of America.

2. EXECUTION AND DELIVERY. This Letter of Transmittal or a facsimile thereof
must be properly filled in and signed by the registered owner or owners of the
Shares being tendered and should be mailed or delivered with the Shares to the
Exchange Agent at the appropriate address set forth herein. The method of
delivery of all documents is at the election and risk of the owners of the
Shares being tendered. However, it is suggested that all documents be delivered
to the Exchange Agent in person or, if sent by mail, be sent by registered mail,
return receipt requested, properly insured. No alternative, conditional or
contingent tenders will be accepted. All tendering owners of a Share, by
execution of this Letter of Transmittal, waive any right to receive any notice
of the acceptance of their tender.

3. DESCRIPTION OF SHARES. The Holder should complete the Description of Shares
on the preceding page. The name of the "registered holder" should be the name on
the certificate or a duly executed stock power or comparable document.

4. COMPLETION OF LETTER OF TRANSMITTAL. Signatures on all documents must
correspond with the name of the registered holder of the tendered Shares as set
forth on page 3 of this Letter of Transmittal (under the heading "Description of
Shares") without alteration, enlargement or any change whatsoever, unless an
authorized representative is signing on behalf of the registered owner. If the
Shares tendered hereby are owned of record by two or more joint owners, all such
owners must sign this Letter of Transmittal. If this Letter of Transmittal is
signed by trustees, executors, administrators, guardians, attorneys-in-fact,
officers of corporations or others acting in a fiduciary or representative
capacity, such persons should so indicate when signing, and proper evidence
satisfactory to Offeror of their authority so to act must be submitted to the
Exchange Agent.

5. ADDITIONAL COPIES. Additional copies of the Exchange Offer and this Letter of
Transmittal may be obtained from the Exchange Agent at its address set forth on
the cover page of this Letter of Transmittal.

6. TRANSFER TAXES. Transfer taxes imposed as a result of the purchase pursuant
to the Exchange Offer, if any, will be paid by Offeror, except that applicable
transfer taxes will be deducted from a cash payment where such payment is to be
made to other than the registered holder, thus involving an additional transfer.

7. WAIVER OF CONDITIONS. The conditions set forth in this Letter of Transmittal
are for the sole benefit of Offeror and may be asserted by Offeror regardless of
the circumstances giving rise to any such conditions or may be waived at any one
time and from time to time in Offeror's sole discretion.

8. TAXPAYER IDENTIFICATION NUMBER, SUBSTITUTE FORM W-9. The tendering holder of
a Share is required to provide the Exchange Agent with his correct Taxpayer
Identification Number ("TIN") on Substitute Form W-9 on the page following the
last page of these instructions. Failure to provide the information on the form
may subject the tendering holder to 31% withholding on the payment of the
exchange consideration. If such holder is an individual, the taxpayer
identification number is his social security number. The box in Part 3 of the
form may be checked if the tendering holder has not been issued a TIN and has
applied for a number or intends to apply for a number in the near future. If the
box in Part 3 is checked and the Exchange Agent is not provided with a TIN
within 60 days, the Exchange Agent will withhold 31% on all payments of the
exchange consideration thereafter until a TIN is provided to the Exchange Agent,
and the holder may be subject to a $500 penalty imposed by the Internal Revenue
Service. In addition, payments that are made to such holder with respect to an
exchanged Share pursuant to the Exchange Offer may be subject to backup
withholding. If the backup withholding applies, the Exchange Agent is required
to withhold 31% of any payments made to the holder of a Share. Backup
withholding is not an additional tax. Rather, the tax liability of persons
subject to backup withholding will be reduced by the amount of tax withheld. If
withholding results in an overpayment of taxes, a refund may be obtained.


                                       A-4


<PAGE>

                               SUBSTITUTE FORM W-9






















                                       A-5
<PAGE>

         Any questions or requests for assistance or additional copies of the
Prospectus  and  the  Letter  of  Transmittal   may  be  directed  to  Georgeson
shareholder  communications  Inc.at the  telephone  number and  location  listed
below. You may contact your broker, dealer, commercial bank or other nominee for
assistance concerning the Exchange Offer.

                THE INFORMATION AGENT FOR THE EXCHANGE OFFER IS:

                    GEORGESON SHAREHOLDER COMMUNICATIONS INC
                           17 STATE STREET, 10TH FLOOR
                            NEW YORK, NEW YORK 10004
                               TEL: 1-800-223-2064

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













                                       A-6

<PAGE>
                              APPENDIX B

          SECTION 203 OF THE DELAWARE GENERAL BUSINESS CORPORATION LAW
203 BUSINESS COMBINATIONS WITH INTERESTED STOCKHOLDERS.

         (a) Notwithstanding any other provisions of this chapter, a corporation
shall not engage in any business combination with any interested stockholder for
a period of 3 years following the time that such stockholder became an
interested stockholder, unless:

         (1) prior to such time the board of directors of the corporation
approved either the business combination or the transaction which resulted in
the stockholder becoming an interested stockholder, or

         (2) upon consummation of the transaction which resulted in the
stockholder becoming an interested stockholder, the interested stockholder owned
at least 85% of the voting stock of the corporation outstanding at the time the
transaction commenced, excluding for purposes of determining the number of
shares outstanding those shares owned (i) by persons who are directors and also
officers and (ii) employee stock plans in which employee participants do not
have the right to determine confidentially whether shares held subject to the
plan will be tendered in a tender or exchange offer, or

         (3) at or subsequent to such time the business combination is approved
by the board of directors and authorized at an annual or special meeting of
stockholders, and not by written consent, by the affirmative vote of at least
66-2/3% of the outstanding voting stock which is not owned by the interested
stockholder.

         (b) The restrictions contained in this section shall not apply if:

         (1) the corporation's original certificate of incorporation contains a
provision expressly electing not to be governed by this section;

         (2) the corporation, by action of its board of directors, adopts an
amendment to its bylaws within 90 days of the effective date of this section,
expressly electing not to be governed by this section, which amendment shall not
be further amended by the board of directors.

         (3) the corporation, by action of its stockholders, adopts an amendment
to its certificate of incorporation or bylaws expressly electing not to be
governed by this section, provided that, in addition to any other vote required
by law, such amendment to the certificate of incorporation or bylaws must be
approved by the affirmative vote of a majority of the shares entitled to vote.
An amendment adopted pursuant to this paragraph shall be effective immediately
in the case of a corporation that both (i) has never had a class of voting stock
that falls within any of the three categories set out in subsection (b)(4)
hereof, and (ii) has not elected by a provision in its original certificate of
incorporation or any amendment thereto to be governed by this section. In all
other cases, an amendment adopted pursuant to this paragraph shall not be
effective until 12 months after the adoption of such amendment and shall not
apply to any business combination between such corporation and any person who
became an interested stockholder of such corporation on or prior to such
adoption. A bylaw amendment adopted pursuant to this paragraph shall not be
further amended by the board of directors;

         (4) the corporation does not have a class of voting stock that is (i)
listed on a national securities exchange, (ii) authorized for quotation on The
Nasdaq Stock Market or (iii) held of record by more than 2,000 stockholders,
unless any of the foregoing results from action taken, directly or indirectly,
by an interested stockholder or from a transaction in which a person becomes an
interested stockholder;


                                       B-1
<PAGE>

         (5) a stockholder becomes an interested stockholder inadvertently and
(i) as soon as practicable divests itself of ownership of sufficient shares so
that the stockholder ceases to be an interested stockholder and (ii) would not,
at any time within the 3 year period immediately prior to a business combination
between the corporation and such stockholder, have been an interested
stockholder but for the inadvertent acquisition of ownership;

         (6) the business combination is proposed prior to the consummation or
abandonment of and subsequent to the earlier of the public announcement or the
notice required hereunder of a proposed transaction which (i) constitutes one of
the transactions described in the second sentence of this paragraph; (ii) is
with or by a person who either was not an interested stockholder during the
previous 3 years or who became an interested stockholder with the approval of
the corporation's board of directors or during the period described in paragraph
(7) of this subsection (b); and (iii) is approved or not opposed by a majority
of the members of the board of directors then in office (but not less than 1)
who were directors prior to any person becoming an interested stockholder during
the previous 3 years or were recommended for election or elected to succeed such
directors by a majority of such directors. The proposed transactions referred to
in the preceding sentence are limited to (x) a merger or consolidation of the
corporation (except for a merger in respect of which, pursuant to Section 251(f)
of the chapter, no vote of the stockholders of the corporation is required); (y)
a sale, lease, exchange, mortgage, pledge, transfer or other disposition (in one
transaction or a series of transactions), whether as part of a dissolution or
otherwise, of assets of the corporation or of any direct or indirect
majority-owned subsidiary of the corporation (other than to any direct or
indirect wholly-owned subsidiary or to the corporation) having an aggregate
market value equal to 50% or more of either that aggregate market value of all
of the assets of the corporation determined on a consolidated basis or the
aggregate market value of all the outstanding stock of the corporation; or (z) a
proposed tender or exchange offer for 50% or more of the outstanding voting
stock of the corporation. The corporation shall give not less then 20 days
notice to all interested stockholders prior to the consummation of any of the
transactions described in clauses (x) or (y) of the second sentence of this
paragraph; or

         (7) The business combination is with an interested stockholder who
became an interested stockholder at a time when the restrictions contained in
this section did not apply by reason of any paragraphs (1) through (4) of this
subsection (b), provided, however, that this paragraph (7) shall not apply if,
at the time such interested stockholder became an interested stockholder, the
corporation's certificate of incorporation contained a provision authorized by
the last sentence of this subsection (b).

         Notwithstanding paragraphs (1), (2), (3) and (4) of this subsection, a
corporation may elect by a provision of its original certificate of
incorporation or any amendment thereto to be governed by this section; provided
that any such amendment to the certificate of incorporation shall not apply to
restrict a business combination between the corporation and an interested
stockholder of the corporation if the interested stockholder became such prior
to the effective date of the amendment.

         (c) As used in this section only, the term:

         (1) "affiliate" means a person that directly, or indirectly through one
or more intermediaries, controls, or is controlled by, or is under common
control with, another person.

         (2) "associate," when used to indicate a relationship with any person,
means (i) any corporation, partnership, unincorporated association or other
entity of which such person is a director, officer or partner or is, directly or
indirectly, the owner of 20% or more of any class of voting stock, (ii) any
trust or other estate in which such person has at least a 20% beneficial
interest or as to which such person serves as trustee or in a similar fiduciary
capacity, and (iii) any relative or spouse of such person, or any relative of
such spouse, who has the same residence as such person.


                                       B-2
<PAGE>

         (3) "business combination," when used in reference to any corporation
and any interested stockholder of such corporation, means:

                  (i) any merger or consolidation of the corporation or any
direct or indirect majority -owned subsidiary of the corporation with (A) the
interested stockholder, or (B) with any other corporation, partnership,
unincorporated association or other entity if the merger or consolidation is
caused by the interested stockholder and as a result of such merger or
consolidation subsection (a) of this section is not applicable to the surviving
entity;

                  (ii) any sale, lease, exchange, mortgage, pledge, transfer or
other disposition (in one transaction or a series of transactions), except
proportionately as a stockholder of such corporation, to or with the interested
stockholder, whether as part of a dissolution or otherwise, of assets of the
corporation or of any direct or indirect majority-owned subsidiary of the
corporation which assets have an aggregate market value equal to 10% or more of
either the aggregate market value of all the assets of the corporation
determined on a consolidated basis or the aggregate market value of all the
outstanding stock of the corporation;

                  (iii) any transaction which results in the issuance or
transfer by the corporation or by any direct or indirect majority-owned
subsidiary of the corporation of any stock of the corporation or of such
subsidiary to the interested stockholder, except (A) pursuant to the exercise,
exchange or conversion of securities exercisable for, exchangeable for or
convertible into stock of such corporation or any such subsidiary which
securities were outstanding prior to the time that the interested stockholder
became such, (B) pursuant to a merger under Section 251(g) of this title; (C)
pursuant to a dividend or distribution paid or made, or the exercise, exchange
or conversion of securities exercisable for, exchangeable for or convertible
into stock of such corporation or any such subsidiary which security is
distributed, pro rata to all holders of a class or series of stock of such
corporation subsequent to the time the interested stockholder became such, (D)
pursuant to an exchange offer by the corporation to purchase stock made on the
same terms to all holders of said stock, or (E) any issuance or transfer of
stock by the corporation, provided however, that in no case under (C)-(E) above
shall there be an increase in the interested stockholder's proportionate share
of the stock of any class or series of the corporation or of the voting stock of
the corporation;

                  (iv) any transaction involving the corporation or any direct
or indirect majority -owned subsidiary of the corporation which has the effect,
directly or indirectly, of increasing the proportionate share of the stock of
any class or series, or securities convertible into the stock of any class or
series, of the corporation or of any such subsidiary which is owned by the
interested stockholder, except as a result of immaterial changes due to
fractional share adjustments or as a result of any purchase or redemption of any
shares of stock not caused, directly or indirectly, by the interested
stockholder; or

                  (v) any receipt by the interested stockholder of the benefit,
directly or indirectly (except proportionately as a stockholder of such
corporation) of any loans, advances, guarantees, pledges, or other financial
benefits (other than those expressly permitted in subparagraphs (i)-(iv) above)
provided by or through the corporation or any direct or indirect majority owned
subsidiary.

         (4) "control," including the term "controlling," "controlled by" and
"under common control with," means the possession, directly or indirectly, of
the power to direct or cause the direction of the management and policies of a
person, whether through the ownership of voting stock, by contract, or
otherwise. A person who is the owner of 20% or more of the outstanding voting
stock of any corporation, partnership, unincorporated association or other
entity shall be presumed to have control of such entity, in the absence of proof
by a preponderance of the evidence to the contrary. Notwithstanding the
foregoing, a presumption of control shall not apply where such person holds
voting stock, in good faith and not for


                                       B-3
<PAGE>

the purpose of circumventing this section, as an agent, bank, broker, nominee,
custodian or trustee for one or more owners who do not individually or as a
group have control of such entity.

         (5) "interested stockholder" means any person (other than the
corporation and any direct or indirect majority-owned subsidiary of the
corporation) that (i) is the owner of 15% or more of the outstanding voting
stock of the corporation, or (ii) is an affiliate or associate of the
corporation and was the owner of 15% or more of the outstanding voting stock of
the corporation at any time within the 3-year period immediately prior to the
date on which it is sought to be determined whether such person is an interested
stockholder; and the affiliates and associates of such person; provided,
however, that the term "interested stockholder" shall not include (x) any person
who (A) owned shares in excess of the 15% limitation set forth herein as of, or
acquired such shares pursuant to a tender offer commenced prior to, December 23,
1987, or pursuant to an exchange offer announced prior to the aforesaid date and
commenced within 90 days thereafter and either (I) continued to own shares in
excess of such 15% limitation or would have but for action by the corporation or
(II) is an affiliate or associate of the corporation and so continued (or so
would have continued but for action by the corporation) to be the owner of 15%
or more of the outstanding voting stock of the corporation at any time within
the 3-year period immediately prior to the date on which it is sought to be
determined whether such a person is an interested stockholder or (B) acquired
said shares from a person described in (A) above by gift, inheritance or in a
transaction in which no consideration was exchanged; or (y) any person whose
ownership of shares in excess of the 15% limitation set forth herein is the
result of action taken solely by the corporation provided that such person shall
be an interested stockholder if thereafter such person acquires additional
shares of voting stock of the corporation, except as a result of further
corporate action not caused, directly or indirectly, by such person. For the
purpose of determining whether a person is an interested stockholder, the voting
stock of the corporation deemed to be outstanding shall include stock deemed to
be owned by the person through application of paragraph (8) of this subsection
but shall not include any other unissued stock of such corporation which may be
issuable pursuant to any agreement, arrangement or understanding, or upon
exercise of conversion rights, warrants or options, or otherwise.

         (6) "person" means any individual, corporation, partnership,
unincorporated association or other entity.

         (7) "Stock" means, with respect to any corporation, capital stock and,
with respect to any other entity, any equity interest.

         (8) "Voting stock" means, with respect to any corporation, stock of any
class or series entitled to vote generally in the election of directors and,
with respect to any entity that is not a corporation, any equity interest
entitled to vote generally in the election of the governing body of such entity.

         (9) "owner" including the terms "own" and "owned" when used with
respect to any stock means a person that individually or with or through any of
its affiliates or associates:

                  (i) beneficially owns such stock, directly or indirectly; or

                  (ii) has (A) the right to acquire such stock (whether such
right is exercisable immediately or only after the passage of time) pursuant to
any agreement, arrangement or understanding, or upon the exercise of conversion
rights, exchange rights, warrants or options, or otherwise; provided, however,
that a person shall not be deemed the owner of stock tendered pursuant to a
tender or exchange offer made by such person or any of such person's affiliates
or associates until such tendered stock is accepted for purchase or exchange; or
(B) the right to vote such stock pursuant to any agreement, arrangement or
understanding; provided, however, that a person shall not be deemed the owner of
any


                                       B-4
<PAGE>

stock because of such person's right to vote such stock if the agreement,
arrangement or understanding to vote such stock arises solely from a revocable
proxy or consent given in response to a proxy or consent solicitation made to 10
or more persons; or

                  (iii) has any agreement, arrangement or understanding for the
purpose of acquiring, holding, voting (except voting pursuant to a revocable
proxy or consent as described in item (B) of clause (ii) of this paragraph), or
disposing of such stock with any other person that beneficially owns, or whose
affiliates or associates beneficially own, directly or indirectly, such stock.

         (d) No provision of a certificate of incorporation or bylaw shall
require, for any vote of stockholders required by this section a greater vote of
stockholders than that specified in this section.

         (e) The Court of Chancery is hereby vested with exclusive jurisdiction
to hear and determine all matters with respect to this section. (Last amended by
Ch. 79, L. `95, eff. 7-1-95.)











                                       B-5
<PAGE>



                                     PART II
                     INFORMATION NOT REQUIRED IN PROSPECTUS

ITEM 20. INDEMNIFICATION OF DIRECTORS AND OFFICERS

         Sections 721-725 of the New York Law provide for or permit the
indemnification of directors and officers of TrustCo under certain
circumstances. Generally, a corporation may indemnify a director or officer of
the corporation against any judgments, fines, amounts paid in settlement and
reasonable expenses if such director or officer acted, in good faith, for a
purpose which he reasonably believed to be in the best interests of the
corporation and, in criminal actions, had no reasonable cause to believe that
his conduct was unlawful.

         Article 11 of TrustCo's Certificate provides that, to the fullest
extent elimination or limitation of director liability is permitted by the New
York Law, no director of the corporation shall be liable to the corporation or
its stockholders for any breach of duty in such capacity.

         Article 13, Section 13.2, of the Registrant's Bylaws expressly provides
that no indemnification may be made to or on behalf of any director or officer
if a judgment or other final adjudication adverse to the director or officer
establishes that his acts were committed in bad faith or were the result of an
act of deliberate dishonesty and were material to the cause of action so
adjudicated, or that he personally gained in fact a financial profit or other
advantage to which he was not entitled.

         Pursuant to a policy of directors' and officers' insurance with total
annual limits of $5,000,000, the directors and officers of Registrant are
insured, subject to the limits, exceptions and other terms and conditions of
such policy, against liability for claims made against them for any actual or
alleged error or misstatement or misleading statement or act or omission or
neglect or breach of duty while acting in their individual or collective
capacities as directors or officers.

ITEM 21. EXHIBITS AND FINANCIAL STATEMENT SCHEDULES.

         The following exhibits are submitted herewith:

         5        Legal Opinion of Lewis, Rice & Fingersh, L.C. (regarding
                  legality);

         8        Legal Opinion of Lewis, Rice & Fingersh, L.C. (regarding tax
                  consequences);

         23(a)    Consent of KPMG LLP;

         23(b)    Consent of Lewis, Rice & Fingersh, L.C. (in opinion regarding
                  legality);

         24       Powers of Attorney;

         28(a)    Letter of Transmittal (Appendix A to Prospectus);

         28(b)    Exchange Agent Agreement; and

         99       Section 203 of the DGCL (Appendix B to this Prospectus).

         The following exhibits are incorporated by reference herein:


                                      II-1
<PAGE>

         3(a)     Amended and Restated Certificate of Incorporation of TrustCo
                  Bank Corp NY; and

         3(b)     Amended Bylaws of TrustCo Bank Corp NY.

ITEM 22. UNDERTAKINGS.

         (1) The undersigned Registrant hereby undertakes as follows: 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)
promulgated pursuant to the 1933 Act, the issuer 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.

         (2) The Registrant undertakes that every prospectus that (i) is filed
pursuant to paragraph (1) immediately preceding, or (ii) purports to meet the
requirements of Section 10(a)(3) of the 1933 Act, and is issued in connection
with an offering of securities subject to Rule 415 promulgated pursuant to the
1933 Act, 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 1933 Act, each such post-effective
amendment will be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time
will be deemed to be the initial bona fide offering thereof.

         (3) Insofar as indemnification for liabilities arising under the 1933
Act may be permitted to directors, officers and controlling persons of the
Registrant pursuant to the foregoing provisions (see Item 20 -- Indemnification
of Directors and Officers), or otherwise, the Registrant has been advised that
in the opinion of the SEC such indemnification is against public policy as
expressed in the 1933 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 of 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 1933
Act, and will be governed by the final adjudication of such issue.

         (4) The undersigned Registrant hereby undertakes to deliver or cause to
be delivered with the Prospectus, to each person to whom the Prospectus is sent
or given, the latest annual report to security holders that is incorporated by
reference in the Prospectus and furnished pursuant to and meeting the
requirements of Rule 14a-3 or Rule 14c-3 under the 1934 Act; and, where interim
financial information required to be presented by Article 3 of Regulation S-X is
not set forth in the Prospectus, to deliver, or cause to be delivered to each
person to whom the Prospectus is sent or given, the latest quarterly report that
is specifically incorporated by reference in the Prospectus to provide such
interim financial information.

         (5) The undersigned Registrant hereby undertakes:

                  (a) to file, during any period in which offers or sales are
being made, a post-effective amendment to this Registration Statement;

                           (i) to include any prospectus required by Section
                  10(a)(3) of the 1933 Act;


                                      II-2
<PAGE>

                           (ii) to reflect in the Prospectus any facts or events
                  arising after the effective date of the Registration Statement
                  (or the most recent post-effective amendment thereof) which,
                  individually or in the aggregate, represent a fundamental
                  change in the information set forth in the Registration
                  Statement; notwithstanding the foregoing, any increase or
                  decrease in volume of securities offered (if the total dollar
                  value of securities offered would not exceed that which was
                  registered) and any deviation from the low or high end of the
                  estimated maximum offering range may be reflected in the form
                  of prospectus filed with the SEC pursuant to Rule 424(b) if,
                  in the aggregate, the changes in volume and price represent no
                  more than a 20 percent change in the maximum aggregate
                  offering price set forth in the "Calculation of Registration
                  Fee" table in the effective Registration Statement;

                           (iii) to include any material information with
                  respect to the plan of distribution not previously disclosed
                  in the Registration Statement or any material change to such
                  information in the Registration Statement;

                  (b) that, for the purpose of determining any liability under
         the 1933 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; and

                  (c) to remove from registration by means of a post-effective
         amendment any of the securities being registered which remain unsold at
         the termination of the offering.

         (6) The undersigned Registrant hereby undertakes that, for purposes of
determining any liability under the 1933 Act, each filing of the Registrant's
annual report pursuant to Section 13(a) or 15(d) of the 1934 Act (and, where
applicable, each filing of an employee benefit plan's annual report pursuant to
Section 15(d) of the 1934 Act), that is incorporated by reference in the
Registration Statement 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.

         (7) The undersigned Registrant hereby undertakes to respond to requests
for information that is incorporated by reference into the prospectus pursuant
to Items 4, 10(b), 11 or 13 of this Form, 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.

         (8) The undersigned Registrant hereby undertakes 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.


                                      II-3
<PAGE>

                                   SIGNATURES

         Pursuant to the requirements of the 1933 Act, the Registrant has duly
caused this Registration Statement to be signed on its behalf by the
undersigned, thereunto duly authorized, in the City of Schenectady, State of New
York, on July 11, 2000.

                                      TRUSTCO BANK CORP NY


                                      By:  /s/ ROBERT A. MCCORMICK
                                           -----------------------------
                                           Robert A. McCormick
                                           President and Chief Executive
                                           Officer

         Pursuant to the requirements of the 1933 Act, this Registration
Statement has been signed by the following persons in the capacities indicated
on July 11, 2000.

            NAME                               TITLE/POSITION


/s/ ROBERT A. MCCORMICK        President, Chief Executive Officer and Director
------------------------------ (principal executive officer)
Robert A. McCormick


/s/ ROBERT T. CUSHING          Vice President and Chief Financial Officer
------------------------------ (principal financial officer and principal
Robert T. Cushing              accounting officer)


/s/ BARTON A. ANDREOLI         Director
------------------------------
Barton A. Andreoli


/s/ LIONEL O. BARTHOLD         Director
------------------------------
Lionel O. Barthold


/s/ M. NORMAN BRICKMAN         Director
------------------------------
M. Norman Brickman


/s/ JOSEPH LUCARELLI           Director
------------------------------
Joseph Lucarelli


/s/ NANCY A. MCNAMARA          Director
------------------------------
Nancy A. McNamara


/s/ DR. ANTHONY J. MARINELLO   Director
------------------------------
Dr. Anthony J. Marinello


                                      II-4
<PAGE>


/s/ JAMES H. MURPHY, D.D.S.    Director
------------------------------
James H. Murphy, D.D.S.


/s/ RICHARD J. MURRAY, JR.     Director
------------------------------
Richard J. Murray, Jr.


/s/ KENNETH C. PETERSEN        Director
------------------------------
Kenneth C. Petersen


/s/ WILLIAM D. POWERS          Director
------------------------------
William D. Powers


/s/ WILLIAM J. PURDY           Director
------------------------------
William J. Purdy


/s/ WILLIAM F. TERRY           Director
------------------------------
William F. Terry


*By:/s/ William F. Terry
    ------------------------------
    William F. Terry
    Attorney-in-fact


                                      II-5


<PAGE>

                                  EXHIBIT INDEX

     Reg. S-K
     Item 601
    Exhibit No.                                  Exhibit
    -----------                                  -------

         3(a)              Amended and Restated Certificate of Incorporation of
                           TrustCo Bank Corp NY is incorporated by reference
                           herein from the TrustCo Bank Corp NY Annual Report on
                           Form 10-K for the fiscal year ended December 31,
                           1993.

         3(b)              Amended Bylaws of TrustCo Bank Corp NY are
                           incorporated by reference herein from the TrustCo
                           Bank Corp NY Annual Report on Form 10-K for the
                           fiscal year ended December 31, 1994.

         5                 Legal Opinion of Lewis, Rice & Fingersh, L.C.
                           regarding legality.

         8                 Legal Opinion of Lewis, Rice & Fingersh, L.C.
                           regarding tax consequences.

         23(a)             Consent of KPMG LLP.

         23(b)             Consent of Lewis, Rice & Fingersh, L.C. in opinion
                           regarding legality.

         24                Powers of Attorney.

         28(a)             Letter of Transmittal (Appendix A to Prospectus).

         28(b)             Exchange Agent Agreement.

         99                Section 203 of the Delaware General Business
                           Corporation Act (Appendix B to this Prospectus).



<PAGE>

                                    Exibit 5
                                    --------














<PAGE>

                                    Exibit 8
                                    --------




















<PAGE>

                                                                   Exhibit 23(a)

                          INDEPENDENT AUDITORS' CONSENT



The Board of Directors
TrustCo Bank Corp NY

We consent to incorporation by reference in the Registration Statement on Form
S-4 of TrustCo Bank Corp NY related to the proposed acquisition of Hudson River
Bancorp, Inc. of our report dated January 18, 2000, relating to the consolidated
statements of condition of TrustCo Bank Corp NY and subsidiary as of December
31, 1999 and 1998, and the related consolidated statements of income, changes in
shareholders' equity and cash flows for each of the years in the three-year
period ended December 31, 1999, which report appears in the 1999 Annual Report
on Form 10-K of TrustCo Bank Corp NY.

We also consent to the reference to our firm under the heading "Experts" in the
Prospectus.


/s/ KPMG LLP

Albany, New York
July 11, 2000








<PAGE>


                                   Exhibit 24

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ ROBERT A. MCCORMICK
                                                 -------------------------------
                                                 Robert A. McCormick












<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ ROBERT T. CUSHING
                                                 -------------------------------
                                                 Robert T. Cushing










<PAGE>

                             POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ BARTON A. ANDREOLI
                                                 -------------------------------
                                                 Barton A. Andreoli







<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ LIONEL O. BARTHOLD
                                                 -------------------------------
                                                 Lionel O. Barthold










<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ M. NORMAN BRICKMAN
                                                 -------------------------------
                                                 M. Norman Brickman










<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ JOSEPH LUCARELLI
                                                 -------------------------------
                                                 Joseph Lucarelli














<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ NANCY A. MCNAMARA
                                                 -------------------------------
                                                 Nancy A. McNamara










<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ DR. ANTHONY J. MARINELLO
                                                 -------------------------------
                                                 Dr. Anthony J. Marinello


<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ JAMES. H. MURPHY, D.D.S.
                                                 -------------------------------
                                                 James. H. Murphy, D.D.S.









<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ RICHARD J. MURRAY, JR.
                                                 -------------------------------
                                                 Richard J. Murray, Jr.














<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ KENNETH C. PETERSEN
                                                 -------------------------------
                                                 Kenneth C. Petersen












<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ WILLIAM D. POWERS
                                                 -------------------------------
                                                 William D. Powers












<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ WILLIAM J. PURDY
                                                 -------------------------------
                                                 William J. Purdy















<PAGE>

                                POWER OF ATTORNEY

                         1933 ACT REGISTRATION STATEMENT

                                       of

                              TRUSTCO BANK CORP NY


         KNOW ALL MEN BY THESE PRESENTS, That the person whose signature appears
below hereby constitutes and appoints Robert A. McCormick, William F. Terry and
Robert T. Cushing, and each of them, the true and lawful attorneys-in-fact and
agents for him and in his name, place or stead, in any and all capacities, to
sign and file, or cause to be signed and filed, with the Securities and Exchange
Commission (the "Commission"), any registration statement or statements on Form
S-4 under the Securities Act of 1933, as amended, relating to the issuance of
common stock of TrustCo Bank Corp NY in connection with the offer to exchange
shares of common stock of TrustCo Bank Corp NY for the outstanding stock of
Hudson River Bancorp, Inc., and any and all amendments and supplements thereto,
before or after effectiveness of such statements, and any and all other
documents required to be filed with the Commission in connection therewith,
granting unto said attorneys-in-fact and agents, full power and authority to do
and perform each and every act and thing requisite and necessary to be done as
fully and to all intents and purposes as the undersigned might or could do in
person, and ratifying and confirming all that said attorneys-in-fact and agents
may lawfully do or cause to be done by virtue hereof.


         Dated: July 11, 2000


                                                 /s/ WILLIAM F. TERRY
                                                 -------------------------------
                                                 William F. Terry





<PAGE>

                                  Exibit 28(b)
                                  ------------























<PAGE>


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