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
- 2182 more...
- ItemJMF00-01407.5 - Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950.
- ItemJMF00-01407.6 - Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950.
- ItemJMF00-01407.7 - Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950.
- ItemJMF00-01408.0 - Northern Pacific steam locomotive 2453 at Tacoma, Washington, in 1945.
- ItemJMF00-01409.0 - Northern Pacific steam locomotive 2453 at South Tacoma, Washington, circa 1957.
- ItemJMF00-01410.0 - Northern Pacific steam locomotive 2454 at Jamestown, North Dakota, in 1952.
- ItemJMF00-01410.1 - Northern Pacific steam locomotive 2456 at St. Paul, Minnesota, in 1934.
- ItemJMF00-01411.0 - Northern Pacific steam locomotive 2459 at Mandan, North Dakota, in 1950.
- ItemJMF00-01412.0 - Northern Pacific steam locomotive 2461 at Brainerd, Minnesota, in 1952.
- 454 more...