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
- 2190 more...
- ItemJMF00-01412.0 - Northern Pacific steam locomotive 2461 at Brainerd, Minnesota, in 1952.
- ItemJMF00-01413.0 - Northern Pacific steam locomotive 2465 at Livingston, Montana, in 1949.
- ItemJMF00-01414.0 - Northern Pacific steam locomotive 2465, circa 1950.
- ItemJMF00-01415.0 - Northern Pacific steam locomotive 2466, circa 1953.
- ItemJMF00-01416.0 - Northern Pacific steam locomotive 2500 at Mandan, North Dakota, in 1950.
- ItemJMF00-01417.0 - Northern Pacific steam locomotive 2501 at Glendive, Montana, in 1950.
- ItemJMF00-01418.0 - Northern Pacific steam locomotive 2501 at Glendive, Montana, in 1950.
- ItemJMF00-01419.0 - Northern Pacific steam locomotive 2501 at Glendive, Montana, in 1953.
- ItemJMF00-01420.0 - Northern Pacific steam locomotive 2502 at Glendive, Montana, in 1950.
- 446 more...