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
- 560 more...
- ItemWWASMR-GrnwdBal-003 - Seattle Municipal Railway Track, Seattle, Washington, 1930
- ItemWWASMR-GrnwdBal-004 - Seattle Municipal Railway Track, Seattle, Washington, circa 1925
- ItemWWASMR-GrnwdBal-005 - Seattle Municipal Railway Car 181, Seattle, Washington, 1920
- ItemWWASMR-GrnwdBal-006 - Seattle Municipal Railway Track, Seattle, Washington, 1930
- ItemWWASMR-ATL-001 - Seattle Transit System Buildings, Seattle, Washington, 1943
- ItemWWASMR-FRE-001 - Seattle Municipal Railway Buildings, Seattle, Washington, 1941
- 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
- 1558 more...