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
- 38 more...
- ItemWWASPS-PC1-035 - Spokane, Portland and Seattle (SP&S) Business Car Number 99 (2nd), Portland, Oregon, August 1943
- ItemWWASPS-PC1-036 - Spokane, Portland and Seattle (SP&S) Business Car Number 99 (2nd), Portland, Oregon, undated
- ItemWWASPS-PC1-039 - Spokane, Portland and Seattle (SP&S) Examination Car Number 111 (2nd), Vancouver, Washington, May 1968
- ItemWWASPS-PC1-040 - Spokane, Portland and Seattle (SP&S) Examination Car Number 111 (2nd), Wenatchee, Washington, October 17, 1970
- ItemWWASPS-PC1-041 - Spokane, Portland and Seattle (SP&S) Wood Coach, undated
- ItemWWASPS-PC1-042 - Spokane, Portland and Seattle (SP&S) Wood Coach Number 218, Portland, Oregon, November 9, 1945
- ItemWWASPS-PC1-043 - Spokane, Portland and Seattle (SP&S) Wood Coach Number 220, Portland, Oregon, August 1949
- ItemWWASPS-PC1-044 - Spokane, Portland and Seattle (SP&S) Wood Coach Number 220, Portland, Oregon, undated
- ItemWWASPS-PC1-045 - Spokane, Portland and Seattle (SP&S) Steel Coach Number 271, undated
- 40 more...