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
- 218 more...
- ItemJATGLoco_2503h - Great Northern Railway steam locomotive 2503 in Washington State, undated.
- ItemJATGLoco_2503j - Great Northern Railway steam locomotive 2503 in Washington State, undated.
- ItemJATGLoco_2503k - Great Northern Railway steam locomotive 2503 in Washington State, undated.
- ItemJATGLoco_2503lArgo-BlackriverC1934 - Great Northern Railway steam locomotive 2503 in Washington State in 1934.
- ItemJATGLoco_2503nBlackriverC1934 - Great Northern Railway steam locomotive 2503 at Black River, Washington in 1934.
- ItemJATGLoco_2503oBlackriverC1934 - Great Northern Railway steam locomotive 2503 in Washington State, undated.
- ItemJATGLoco_2504a - Great Northern Railway steam locomotive 2504 in Washington State, undated.
- ItemJATGLoco_2504bSeattleC1924 - Great Northern Railway steam locomotive 2504 at Seattle, Washington in 1924.
- ItemJATGLoco_2504cGoldenGardensC1936 - Great Northern Railway steam locomotive 2504 at Golden Gardens, Washington in 1936.
- 100 more...