Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series010 - Other Railroads
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3012 - Street railroads
- 566 more...
- ItemWWASMR-FRE-002 - Seattle Municipal Railway Buildings, Seattle, Washington, 1941
- ItemWWASMR-FRE-003 - Seattle Municipal Railway Car 705, Seattle, Washington, 1921
- ItemWWASMR-FRE-004 - Seattle Municipal Railway Car 758, Seattle, Washington, undated
- ItemWWASMR-FRE-005 - Seattle Municipal Railway Car 704, Seattle, Washington, 1920s
- ItemWWASMR-FRE-006 - Seattle Municipal Railway Car 565, Seattle, Washington, undated
- ItemWWASMR-FRE-007 - Seattle Municipal Railway Car 726, Seattle, Washington, 1919
- ItemWWASMR-FRE-008 - Puget Sound Traction, Light & Power Car 535, Seattle, Washington, 1914
- ItemWWASMR-FRE-009 - Seattle Municipal Railway Car 720, Seattle, Washington, 1920
- ItemWWASMR-FRE-010 - Seattle Municipal Railway Car 727, Seattle, Washington, undated
- 1552 more...