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
- 890 more...
- ItemWWASPSS-06-052 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 503, Vancouver Division, Washington, undated
- ItemWWASPSS-06-053 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 504, Portland, Oregon, April 21, 1940
- ItemWWASPSS-06-054 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 504, Vancouver, Washington, May 1933
- ItemWWASPSS-06-055 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 504, Vancouver, Washington, April 1, 1939
- ItemWWASPSS-06-056 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 504, undated
- ItemWWASPSS-06-057 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 504, Portland, Oregon, undated
- ItemWWASPSS-06-058 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 505, Portland, Oregon, November 1939
- ItemWWASPSS-06-059 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 505, Portland, Oregon, 1937
- ItemWWASPSS-06-060 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 505, Portland, Oregon, June 6, 1941
- 51 more...