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 3001 - Steam Locomotives
- 100 more...
- ItemWWASPSL3-069 - Spokane, Portland, and Seattle (SP&S) Steam Locomotives at Vancouver, Washington, 1944
- ItemWWASPSL6-066 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive 621 at Goodnoe, Washington, 1927
- ItemWWASPSL6-080 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive 902 at Kennewick, Washington, September 2, 1954
- ItemWWASPSL6-081 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive 902 at Kennewick, Washington, September 2, 1954
- ItemWWASPSL9-037 - Spokane, Portland & Seattle (SP&S) Depot and Passenger Train at Seaside, Oregon, circa 1945
- ItemWWASPSL9-043 - Northern Pacific Steam Locomotive 255, Leased to the Spokane, Portland & Seattle (SP&S), at Seaside, Oregon, circa 1912
- ItemWWASPSL9-056 - Spokane, Portland and Seattle (SP&S) Steam Locomotive 54 at Hammond, Oregon, undated
- ItemWWASPSL1-047 - Spokane, Portland, and Seattle (SP&S) Steam Locomotive and Shop Crew, Portland, Oregon, December 2, 1927
- ItemWWASPSS-01-001 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Logo, undated
- 841 more...