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
- 2171 more...
- ItemJMF00-01397.0 - Northern Pacific steam locomotive 2425 at Tacoma, Washington, in 1954.
- ItemJMF00-01398.0 - Northern Pacific steam locomotive 2428 at Pasco, Washington, in 1937.
- ItemJMF00-01399.0 - Northern Pacific steam locomotive 2430 at Superior, Wisconsin, in 1950.
- ItemJMF00-01400.0 - Northern Pacific steam locomotive 2430 at Superior, Wisconsin, in 1950.
- ItemJMF00-01401.0 - Northern Pacific steam locomotive 2430 at Duluth, Minnesota, in 1954.
- ItemJMF00-01402.0 - Northern Pacific steam locomotive 2433 at Tacoma, Washington, circa 1939.
- ItemJMF00-01403.0 - Northern Pacific steam locomotive 2434 at Staples, Minnesota, in 1950.
- ItemJMF00-01404.0 - Northern Pacific steam locomotive 2437 at Mandan, North Dakota, in 1934.
- ItemJMF00-01405.0 - Northern Pacific steam locomotive 2440 at Pasco, Washington, circa 1939.
- 465 more...