Railroad Archives Online
- D0063 - Walter W. Ainsworth Collection
- Ro`yxat007 - Spokane, Portland, and Seattle Railway
- Ro`yxat-osti014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 005 - Maintenance of Way cars
- WWASPSL7-071 - Spokane, Portland, and Seattle (SP&S) Steam Shovel at Cheney, Washington, undated
- WWASPSL7-091 - Spokane, Portland, and Seattle (SP&S) Crane X-11 at Fort Wright, Washington, January 1958
- WWASPSL7-121 - Spokane, Portland, and Seattle (SP&S) Crane, Washington State, undated
- WWASPSL7-122 - Spokane, Portland, and Seattle (SP&S) Crane, Washington State, undated
- WWASPSL7-135 - Oregon Trunk Railway (OT) Work Train, Bend, Oregon, circa 1956
- WWASPSL7-136 - Oregon Trunk Railway (OT) Work Train, Bend, Oregon, circa 1956
- WWASPSL7-140 - Spokane, Portland, and Seattle (SP&S) Tunnel Collapse, Washington State, undated
- WWASPSL7-145 - Spokane, Portland, and Seattle (SP&S) Work Train, White Salmon River, Washington, undated
- WWASPSL7-146 - Spokane, Portland, and Seattle (SP&S) Steam Shovel, Oregon State, undated
- 17 more...