Oral history interview conducted by Vinita Howard from April 9 to May 7, 1992, with Maribel Cadmus as part of the Oregon Legislature Oral History Series. Cadmus was Oregon Senate secretary from 1957-1987.

Oral history interview with Cecil L. Edwards conducted by Irvin Luiten from May 18 to 26, 1988, as part of the Oregon Legislature Oral History Series. Edwards served as chief clerk of the Oregon House of Representatives, secretary of the Senate, and legislative historian.

Oral history interview with Cecil L. Edwards conducted by Alfred Jones on February 20, 1995, as part of the Voices of the Valley Oral History Series for the Marion County Historical Society. Edwards served in multiple roles with the Oregon Legislature from 1933 to 1993, including secretary of the Legislature, chief clerk of the House, secretary of the Senate, and legislative historian.

Oral history interview with Cecil L. Edwards conducted by Charles Digregorio on January 31, 1978. Edwards was chief clerk of the Oregon House of Representatives, secretary of the state Senate, and legislative historian.