Oral history interview with Victor Atiyeh conducted by Clark Hansen from November 24, 1992, to September 10, 1993, and on June 11, 1998, as part of the Oregon Legislature Oral History Series. Atiyeh was an Oregon state representative from 1959 to 1964, an Oregon state senator from 1965 to 1979, and Oregon governor from 1979 to 1987.

Oral history interview with Mark O. Hatfield conducted by Clark Hansen from July 29, 1998, to May 22, 2002, as part of the Senator Mark O. Hatfield Oral History Project. Hatfield was an Oregon state legislator, Oregon secretary of state, Oregon governor, and a U.S. senator.

Oral history interview with Lois D. Siegmund conducted by Clark Hansen on June 23, 1988, as part of the Senator Mark O. Hatfield Oral History Project. Siegmund served on Hatfield's staff during his time as an Oregon state legislator, Oregon secretary of state, and Oregon governor.

Oral history interview with Bob Straub conducted by Clark Hansen from May 14 to June 17, 1991, as a part of the Oregon Legislature Oral History Series. Straub was an Oregon state senator and governor.