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 3004 - Railroad Passenger Cars
- 53 more...
- ItemWWASPS-PC1-056 - Spokane, Portland and Seattle (SP&S) Steel Coach Number 277, Vancouver, Washington, May 1967
- ItemWWASPS-PC1-058 - Spokane, Portland and Seattle (SP&S) Lightweight Coach Number 303, Portland, Oregon, undated
- ItemWWASPS-PC1-061 - Spokane, Portland and Seattle (SP&S) Dining Car Interior, undated
- ItemWWASPS-PC1-062 - Spokane, Portland and Seattle (SP&S) Dining Car Interior, undated
- ItemWWASPS-PC1-063 - Spokane, Portland and Seattle (SP&S) Dining Car Interior, 1916
- ItemWWASPS-PC1-064 - Spokane, Portland and Seattle (SP&S) Dining Car Interior, undated
- ItemWWASPS-PC1-065 - Spokane, Portland and Seattle (SP&S) Dining Car, 1986
- ItemWWASPS-PC1-066 - Spokane, Portland and Seattle (SP&S) Dining Car Number 404, Vancouver, Washington, undated
- ItemWWASPS-PC1-068 - Spokane, Portland and Seattle (SP&S) Dining Car Number 405, Portland, Oregon, undated
- 25 more...