Oral history interview with Hillman Lueddemann, Jr., conducted by Judy Hartman and Craig Wollner on November 20, 1987, as part of the Portland General Electric Centennial Oral History Series. Lueddemann began working at Portland General Electric in 1964 as manager of commercial development, and when he retired in 1989, he held the position of vice president.

Oral history interview with Ambrose A. Oderman conducted by Jim Strassmaier from April 5-25, 2005. In this interview, Oderman discusses the 1918 flu pandemic; his studies during the Depression; his naval service during World War II; and his work for the Bonneville Power Administration and the U.S. Interior Department.

Oral history interview with Arthur Olmstead conducted by Judy Hartman on January 20, 1988, as part of the Portland General Electric Centennial Oral History Series. Olmstead joined Portland General Electric as a maintenance supervisor in 1976, becoming the general plant manager for the Trojan Nuclear Power Plant in 1987.

Originally Portland Railway, Light and Power Company, the company name changed to Portland Electric Power Company in 1924, and then to Pacific Northwest Public Service Company in 1930. Collection includes chart, June 14, 1930, regarding the varying prices of cars from 1900-1930; and chart, January 5, 1932, regarding the company's communication system.