Oral history interview with Charles L. Hayward conducted by Jim Strassmaier from April 13 to May 4, 1994, as a sequel to an earlier interview conducted in 1979 by Linda S. Dodds. Hayward served as a balloon lookout for the U.S. Army during World War I and later manufactured time switches and clock motors.

Oral history interview with Robert Y. Thornton conducted by Jim Strassmaier from May 21 to September 10, 1991, as part of the Oregon Legislature Oral History Series. Thornton was an Oregon state representative and state attorney general.