This oral history interview with Don E. Clark was conducted by George M. Joseph at the Oregon Historical Society in Portland, Oregon, from August 30, 1994 to March 27, 1998. The interview was conducted over twenty-nine sessions, and the collection includes a transcript. Tape 13 of this interview is missing, and some sections of the interview have been restricted by Clark.

In sessions 1 through 5, Clark discusses his early life and career, including working as a prison guard at San Quentin State Prison in California and then as a deputy for the Multnomah County Sheriff’s Office. In sessions 5 and 6, he discusses his 1962 campaign for Multnomah County sheriff. In sessions 7 through 9, he continues to speak about his campaign, and then discusses serving as Multnomah County sheriff from 1962 to 1966. In sessions 10 and 11, he discusses his 1966 re-election campaign for Multnomah County sheriff and his simultaneous campaign for chair of the Multnomah County board of commissioners; serving as assistant director of the Law Enforcement Program at Portland State University from 1967 to 1968, and his 1968 campaign for position 4 on the Multnomah County Board of Commissioners. In sessions 12 through 15, Clark talks about serving on the Multnomah County Board of Commissioners, focusing on the years from 1969 to 1974. In sessions 16 through 20, he talks about campaigning for and serving as chair of the Multnomah County Board of Commissioners from 1975 to 1979. In sessions 21 through 24, Clark discusses serving as county executive from 1979 to 1982, and his 1982 campaign for Oregon governor. In sessions 25 through 29, Clark talks about his activities since leaving office, including serving as executive director of the Burnside Consortium, now known as Central City Concern, from 1984 to 1988, and as executive director of the Housing Authority of Portland, now known as Home Forward, from 1988 to 1992.