EXHIBIT 99


                                CERTIFICATION BY
               CHIEF EXECUTIVE OFFICER AND CHIEF FINANCIAL OFFICER
                     TRUSTMARK CORPORATION AND SUBSIDIARIES
                         PURSUANT TO 18 U.S.C. ss. 1350


We,  Richard G.  Hickson,  Chairman of the Board,  President  & Chief  Executive
Officer of  Trustmark  Corporation  and  Subsidiaries  (Trustmark),  and Zach L.
Wasson,  Treasurer of Trustmark,  hereby certify that the accompanying report on
Form 10-Q  (Report)  for the period  ending  June 30,  2002,  and filed with the
Securities and Exchange  Commission on the date hereof pursuant to Section 13(a)
of the  Securities  Exchange Act of 1934 by Trustmark,  fully  complies with the
requirements of that section.

We further certify that the information contained in the Report fairly presents,
in all material  aspects,  the financial  condition and results of operations of
Trustmark.



BY:       /s/ Richard G. Hickson                  BY:      /s/ Zach L. Wasson
          ----------------------                           ------------------
          Richard G. Hickson                               Zach L. Wasson
          Chairman of the Board, President                 Treasurer (Principal
          & Chief Executive Officer                        Financial Officer)

DATE:     August 12, 2002                         DATE:    August 12, 2002