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
- 1774 more...
- ItemJMF00-01049.1 - Northern Pacific steam locomotive 1824 at Tacoma, Washington, in 1935.
- ItemJMF00-01050.0 - Northern Pacific steam locomotive 1825 at Northtown, Minnesota, in 1954.
- ItemJMF00-01051.0 - Northern Pacific steam locomotive 1825 at Yakima, Washington, in 1934.
- ItemJMF00-01052.0 - Northern Pacific steam locomotive 1826 at Livingston, Montana, in 1953.
- ItemJMF00-01053.0 - Northern Pacific steam locomotive 1826 at Livingston, Montana, in 1954.
- ItemJMF00-01054.0 - Northern Pacific steam locomotive 1826 at Livingston, Montana, in 1954.
- ItemJMF00-01055.0 - Northern Pacific steam locomotive 1827 at Brainerd, Minnesota, in 1954.
- ItemJMF00-01056.0 - Northern Pacific steam locomotive 1828 at Bozeman, Montana, in 1943.
- ItemJMF00-01057.0 - Northern Pacific steam locomotive 1829 at Kanaskat, Washington, in 1944.
- 862 more...