Railroad Archives Online
- CollectionD0011 - James M. Fredrickson Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam locomotives
- 2203 more...
- ItemJMF00-01425.0 - Northern Pacific steam locomotive 2503 at Glendive, Montana, in 1953.
- ItemJMF00-01426.0 - Northern Pacific steam locomotive 2504, in 1916.
- ItemJMF00-01427.0 - Northern Pacific steam locomotive 2505 at Mandan, North Dakota, in 1950.
- ItemJMF00-01428.0 - Northern Pacific steam locomotive 2600 at East Auburn, Washington, in 1944.
- ItemJMF00-01429.0 - Northern Pacific steam locomotive 2600 at Seattle, Washington, circa 1946.
- ItemJMF00-01430.0 - Northern Pacific steam locomotive 2600 at South Tacoma, Washington, in 1946.
- ItemJMF00-01431.0 - Northern Pacific steam locomotive 2600 at Tacoma, Washington, in 1941.
- ItemJMF00-01431.1 - Northern Pacific steam locomotive 2600 at Tacoma, Washington, circa 1943.
- ItemJMF00-01431.2 - Northern Pacific steam locomotive 2600 at Tacoma, Washington, in 1941.
- 433 more...