Railroad Archives Online
- CollectionD0142 - Alden M. Raney Collection
- Series003 - Great Northern Railway Company (U.S.) materials
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- ItemAMR-412 - Great Northern Railway Company steam locomotive 2507 at Vancouver, Washington in 1963.
- ItemAMR-413 - Great Northern Railway Company steam locomotive 2507 at Vancouver, Washington in 1963.
- ItemAMR-414 - Great Northern Railway Company steam locomotive 2507 at Vancouver, Washington in 1963.
- ItemAMR-415 - Great Northern Railway Company steam locomotive 2507 at Vancouver, Washington in 1963.
- ItemAMR-416 - Great Northern Railway Company steam locomotive 2507 at Vancouver, Washington in 1963.