Oral history interview with George H. Bell conducted by Vinita Howard from October 31 to November 21, 1994, as part of the Oregon Legislature Oral History Series. Bell was assistant to the president of the Oregon Senate and deputy secretary of state of Oregon.

Oral history interview with Travis Cross conducted by Jim Strassmaier from October 8 to November 23, 1987, as part of the Senator Mark O. Hatfield Oral History Project. Cross was a member of Hatfield's staff when he was Oregon secretary of state and governor.

Oral history interview with Clay Myers conducted by Tom Wright from June 17 to October 27, 1994, as part of the Oregon Legislature Oral History Series. Myers served as Oregon treasurer and secretary of state.

Oral history interview with Clay Myers conducted by Ellen Nesbitt from October 9-10, 1997, as part of the Oregon Legislature Oral History Series. Myers served as Oregon secretary of state and treasurer.

Oral history interview with Warne H. Nunn conducted by Jim Strassmaier from October 20 to November 3, 1987, as part of the Senator Mark O. Hatfield Oral History Project. Nunn was chief of staff to Governor Mark Hatfield.