Oral history interview with Beulah J. Hand conducted by Michael O'Rourke from November 5, 1991, to October 27, 1993, as part of the Oregon Legislature Oral History Series. Hand was an Oregon state representative from 1957 to 1966.

Oral history interview with Loren D. Hicks conducted by Michael O'Rourke from April 18 to May 6, 1988, as part of the Senator Mark O. Hatfield Oral History Project. Hicks served as assistant attorney general during Hatfield's tenure as Oregon secretary of state, and as legal counsel to Hatfield during his governorship.

Oral history interview with Freeman Holmer conducted by Michael O'Rourke from May 17-24, 1988, as part of the Senator Mark O. Hatfield Oral History Project. Holmer was a professor at Willamette University and also served as Oregon director of elections and director of the Department of Finance and Administration under Mark Hatfield.

Oral history interview with Tom J. Imeson conducted by Michael O'Rourke from September 14 to December 9, 1988, as part of the Senator Mark O. Hatfield Oral History Project. Imeson served on Hatfield's staff from 1969 to 1985.

Oral history interview with James A. Redden conducted by Michael O'Rourke from November 30, 1994, to January 14, 2002, as part of the United States District Court Oral History Project. Redden was an Oregon state representative, state treasurer, state attorney general, and a judge on the U.S. District Court of Oregon.

Oral history interview with James K. Weatherford, Jr. conducted by Michael O'Rourke from August 15 to September 5, 1991, as part of the Oregon Legislature Oral History Series. Weatherford was an Oregon state representative from 1931 to 1934.