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
- 711 more...
- ItemWWASPSS-09-094 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 903, Vancouver, Washington, October 1956
- ItemWWASPSS-09-095 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 904, Vancouver, Washington, April 1953
- ItemWWASPSS-09-096 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 904, Vancouver, Washington, August 1953
- ItemWWASPSS-09-097 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 904, Madras, Oregon, August 15, 1939
- ItemWWASPSS-09-098 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 904, undated
- ItemWWASPSS-09-099 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 904, Spokane, Washington, June 1948
- ItemWWASPSS-09-100 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 904, Spokane, Washington, June 5, 1952
- ItemWWASPSS-09-101 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 904, Vancouver, Washington, undated
- ItemWWASPSS-09-102 - Spokane, Portland and Seattle (SP&S) Steam Locomotive Number 904, Vancouver, Washington, October 1956
- 230 more...