1 Exhibit 24 POWER OF ATTORNEY KNOW ALL MEN BY THESE PRESENT, that each person whose signature appears below constitutes and appoints Tod R. Hamachek, Jeffrey T. Cook, and each of them, severally as attorney-in-fact for him or her in any and all capacities, to sign the Annual Report on Form 10-K of PENWEST, LTD. for the fiscal year ended August 31, 1995, and to file same and any amendments, with exhibits thereto, and other documents in connection therewith, with the Securities and Exchange Commission, hereby ratifying and confirming all that said attorney-in-fact, or his substitute or substitutes, may do or cause to be done by virtue hereof. SIGNATURE DATE - --------- ---- /s/ R.E. Engebrecht October 24, 1995 - -------------------------------------- ------------------------------ Richard E. Engebrecht, Director /s/ Tod R. Hamachek October 24, 1995 - -------------------------------------- ------------------------------ Tod R. Hamachek, Director /s/ C. Calvert Knudsen October 24, 1995 - -------------------------------------- ------------------------------ C. Calvert Knudsen, Director /s/ Harry Mullikin October 24, 1995 - -------------------------------------- ------------------------------ Harry Mullikin, Director /s/ Sally G. Narodick October 24, 1995 - -------------------------------------- ------------------------------ Sally G. Narodick, Director /s/ William G. Parzybok, Jr. October 24, 1995 - -------------------------------------- ------------------------------ William G. Parzybok, Jr., Director /s/ N. Stewart Rogers October 24, 1995 - ----------------------------------- ------------------------------ N. Stewart Rogers, Director /s/ William K. Street October 24, 1995 - ----------------------------------- ------------------------------ William K. Street, Director /s/ James H. Wiborg October 24, 1995 - ----------------------------------- ------------------------------ James H. Wiborg, Director /s/ Paul H. Hatfield October 24, 1995 - ----------------------------------- ------------------------------ Paul H. Hatfield, Director