Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series007 - Spokane, Portland, and Seattle Railway
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3013 - Railroad Accidents
- 21 more...
- ItemWWASPSL7-133 - Spokane, Portland, and Seattle (SP&S) Wreck, Washington State, undated
- ItemWWASPSL7-141 - Spokane, Portland, and Seattle (SP&S) Wreck, Washington State, undated
- ItemWWASPSL9-074 - Spokane, Portland, and Seattle (SP&S) Train Wreck, Avon, Oregon, July 11, 1924.
- ItemWWASPSL9-078 - Spokane, Portland, and Seattle (SP&S) Train Wreck, Avon, Oregon, July 11, 1924.
- ItemWWASPSL7-085 - Spokane, Portland, and Seattle (SP&S) Derailment at Fort Wright, Washington, January 1958
- ItemWWASPSL7-086 - Spokane, Portland, and Seattle (SP&S) Diesel Locomotive, Class FA-1 at Fort Wright, Washington, January 1958