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
- 1796 more...
- ItemJMF00-01068.0 - Northern Pacific steam locomotive 1831 at Livingston, Montana, in 1954.
- ItemJMF00-01069.0 - Northern Pacific steam locomotive 1832 at Brainerd, Minnesota, in 1950.
- ItemJMF00-01070.0 - Northern Pacific steam locomotive 1834 at Glendive, Montana, in 1953.
- ItemJMF00-01071.0 - Northern Pacific steam locomotive 1836 at Brainerd, Minnesota, in 1950.
- ItemJMF00-01072.0 - Northern Pacific steam locomotive 1836, circa 1956.
- ItemJMF00-01073.0 - Northern Pacific steam locomotive 1837 at Duluth, Minnesota, in 1954.
- ItemJMF00-01074.0 - Northern Pacific steam locomotive 1837 at Duluth, Minnesota, in 1954.
- ItemJMF00-01075.0 - Northern Pacific steam locomotive 1838 at Livingston, Montana, in 1952.
- ItemJMF00-01076.0 - Northern Pacific steam locomotive 1838 at Livingston, Montana, in 1952.
- 840 more...