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 3002 - Diesel Locomotives
- 117 more...
- ItemWWASPSD1-118 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 90, undated
- ItemWWASPSD1-119 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 90, undated
- ItemWWASPSD1-120 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 90, undated
- ItemWWASPSD1-121 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 90, Astoria, Oregon, undated
- ItemWWASPSD1-122 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 91, undated
- ItemWWASPSD1-123 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 91, undated
- ItemWWASPSD1-124 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 92, undated
- ItemWWASPSD1-125 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 93, undated
- ItemWWASPSD1-126 - Spokane, Portland and Seattle (SP&S) Diesel Locomotive Number 93, undated
- 136 more...