EX-99.B 4 h94034a1ex99-b.txt AGREEMENT FOR JOINT FILING EXHIBIT B AGREEMENT FOR JOINT FILING PURSUANT TO RULE 13d-1(f)(1) UNDER THE SECURITIES EXCHANGE ACT OF 1934 Pursuant to 17 CFR 240.13D-1(F)(1) under the Securities Exchange Act of 1934, as amended, the undersigned do hereby agree in writing that a Schedule 13D with respect to the common stock of Stewart & Stevenson Services, Inc. be and is filed on behalf of each of them. The undersigned further recognize that each of them is responsible for the timely filing of such Schedule 13D and any amendments thereto, and for the completeness and accuracy of any information concerning them contained therein. The undersigned further constitute and appoint Donald E. Stevenson as their lawful attorney-in-fact and agent, to execute and file such Schedule 13D, and any amendments thereto on their behalf. Dated as of this 22 day of January, 2002. /s/ DONALD E. STEVENSON --------------------------------------- Donald E. Stevenson /s/ Keith T. Stevenson --------------------------------------- Keith T. Stevenson THE DONALD E. STEVENSON TESTAMENTARY TRUST By: /s/ DONALD E. STEVENSON ------------------------------------ Donald E. Stevenson, Trustee ESTATE OF MADLIN STEVENSON By: /s/ DONALD E. STEVENSON ------------------------------------ Donald E. Stevenson, Co-Executor By: /s/ KEITH T. STEVENSON, CO-EXECUTOR ------------------------------------ Keith T. Stevenson, Co-Executor