Railroad Archives Online
- FondoD0063 - Walter W. Ainsworth Collection
- Serie007 - Spokane, Portland, and Seattle Railway
- Sottoserie014 - Photographs
- 006 - People--Non-railroad
- Unità documentariaWWASPSL7-127 - Spokane, Portland, and Seattle (SP&S) Tourists, Washington State, undated
- Unità documentariaWWASPSL7-129 - Tourists, Washington State, undated
- Unità documentariaWWASPSL9-008 - Spokane, Portland, and Seattle (SP&S) Army Camp, June 1927
- Unità documentariaWWASPSL9-027 - US Army Camp, undated
- Unità documentariaWWASPSL9-033 - Spokane, Portland & Seattle (SP&S) Depot and Passenger Train at , Seaside, Oregon, undated
- Unità documentariaWWASPSL9-039 - Spokane, Portland & Seattle (SP&S) Depot and Passenger Train at Seaside, Oregon, circa 1931
- 3 in più...