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                                                                    EXHIBIT 99.1

                                REVOCABLE PROXY
                        CITRUS FINANCIAL SERVICES, INC.
             1717 INDIAN RIVER BOULEVARD, VERO BEACH, FLORIDA 32960

          THIS PROXY IS SOLICITED ON BEHALF OF THE BOARD OF DIRECTORS
                       OF CITRUS FINANCIAL SERVICES, INC.

     The undersigned shareholder of Citrus Financial hereby appoints
and/or        as proxies, for the undersigned, with full power of substitution,
and hereby authorize(s) them or either of them to act and to vote all the shares
of common stock of Citrus Financial Services, Inc. held by the undersigned on
       , at the special meeting of shareholders to be held at        , on
       , 2001, at        local time, or at any adjournment or postponement of
the meeting. Said proxies are directed to vote as instructed on the proposals
shown below and otherwise at their discretion. Receipt of a copy of the notice
of said meeting and proxy statement/prospectus are hereby acknowledged.

    THIS PROXY, WHEN PROPERLY EXECUTED, WILL BE VOTED IN THE MANNER DIRECTED
HEREIN BY THE UNDERSIGNED SHAREHOLDER(S). IF NO DIRECTIONS ARE GIVEN, THIS PROXY
WILL BE VOTED FOR THE PROPOSALS LISTED BELOW.

     The undersigned shareholder may revoke this proxy at any time before it is
voted by either filing with the Corporate Secretary of Citrus Financial a
written notice of revocation, delivering to Citrus Financial a duly executed
proxy bearing a later date, or by attending the special meeting and voting in
person.

PLEASE MARK YOUR VOTE IN THE BOX IN THE FOLLOWING MANNER USING DARK INK
ONLY: [X]

     THE BOARD OF DIRECTORS RECOMMENDS A VOTE "FOR" THE FOLLOWING PROPOSALS

1. To approve the agreement and plan of reorganization, dated as of March 6,
   2001, by and among CIB Marine Bancshares, Inc., Citrus Financial Services,
   Inc. and Citrus Bank, N.A., as more fully described in the accompanying proxy
   statement/prospectus.


                                                                                  

    [ ]    FOR approval of the                 [ ]    AGAINST approval                    [ ]    ABSTAIN from vote
           reorganization agreement                   of the reorganization                      on the reorganization
                                                      agreement                                  agreement


2. To approve the adjournment of the special meeting to solicit additional
   proxies in the event there are not sufficient votes to approve the
   reorganization agreement.


                                                                                  

    [ ]    FOR approval of                     [ ]    AGAINST approval of                 [ ]    ABSTAIN from vote on
           adjournment                                adjournment                                adjournment


3. In his/her discretion, a proxy is authorized to vote upon such other business
   as may properly come before the special meeting or any adjournment or
   postponement of the meeting.


                                                          
- ------------------------------------                         ------------------------------------
Signature                                                    Signature (if held jointly)
Dated:
  ------------------------------,
  2001


Please mark, sign, date and return this proxy promptly, using the enclosed
envelope.

PLEASE CHECK THE FOLLOWING BOX IF YOU PLAN TO ATTEND THE MEETING. [ ]

NOTE: IF YOU RECEIVE MORE THAN ONE PROXY, PLEASE SIGN AND RETURN ALL PROXIES IN
      THE ACCOMPANYING ENVELOPE.

IMPORTANT: Please sign your name exactly as it appears on this proxy. When
shares are held by joint tenants, both should sign. When signing as attorney,
executor, administrator, agent, trustee, or guardian, please give full title. If
shareholder is a corporation, please sign in full corporate name by president or
other authorized officer. If shareholder is a partnership, please sign in
partnership name by authorized person.