Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- 228 more...
- ItemJATGLoco_2504eBlackriverCWWII - Great Northern Railway steam locomotive 2504 at Black River, Washington, undated.
- ItemJATGLoco_2504gSeattleC1925 - Great Northern Railway steam locomotive 2504 at Seattle, Washington in 1925.
- ItemJATGLoco_2504hAllentownC1940 - Great Northern Railway steam locomotive 2504 at Allentown, Washington in 1940.
- ItemJATGLoco_2504iNBlackriver - Great Northern Railway steam locomotive 2504 at Black River, Washington, undated.
- ItemJATGLoco_2504kAllentown - Great Northern Railway steam locomotive 2504 at Allentown, Washington, undated.
- ItemJATGLoco_2504lNBlackriverC1940 - Great Northern Railway steam locomotive 2504 at Black River, Washington in 1940.
- ItemJATGLoco_2504mBlackriverCWWII - Great Northern Railway steam locomotive 2504 at Black River, Washington, undated.
- ItemJATGLoco_2504NBlackriver - Great Northern Railway steam locomotive 2504 at Black River, Washington, undated.
- ItemJATGLoco_2504nBlackriverC1941 - Great Northern Railway steam locomotive 2504 at Black River, Washington in 1941.
- 92 more...