EX-24 16 dex24.txt POWER OF ATTORNEY Exhibit 24 POWER OF ATTORNEY The director of Columbia Banking System, Inc. (the "Company"), whose signature appears below, hereby appoints J. James Gallagher and Melanie J. Dressel, or either of them, as his/her attorney to sign, in his/her name and behalf and in any and all capacities stated below, the Company's Form 10-K Annual Report pursuant to Section 13 of the Securities Exchange Act of 1934, and likewise to sign any and all amendments and other documents relating thereto as shall be necessary, such person hereby granting to each such attorney power to act with or without the other and full power of substitution and revocation, and hereby ratifying all that any such attorney or his substitute may do by virtue hereof. This Power of Attorney has been signed by the following person in the capacity indicated, on the 28/th/ day of February, 2001. Signature Title --------- ----- /s/ William T. Weyerhaeuser Chairman ----------------------------------- William T. Weyerhaeuser /s/ J. James Gallagher Vice Chairman and Director ----------------------------------- J. James Gallagher /s/ Melanie J. Dressel President and Director ----------------------------------- Melanie J. Dressel /s/ Richard Devine Director ----------------------------------- Richard Devine /s/ Jack Fabulich Director ----------------------------------- Jack Fabulich /s/ Jonathan Fine Director ----------------------------------- Jonathan Fine /s/ John Folsom Director ----------------------------------- John Folsom /s/ John Halleran Director ----------------------------------- John Halleran /s/ Tom Hulbert Director ----------------------------------- Tom Hulbert /s/ Tom Matson Director ----------------------------------- Tom Matson /s/ Robert Quoidbach Director ----------------------------------- Robert Quoidbach /s/ Donald Rodman Director ----------------------------------- Donald Rodman /s/ Sid Snyder Director ----------------------------------- Sid Snyder /s/ Jamie Will Director ----------------------------------- Jamie Will