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
- 1743 more...
- ItemJMF00-01021.0 - Northern Pacific steam locomotive 1812 at Tacoma, Washington, in 1955.
- ItemJMF00-01021.1 - Northern Pacific steam locomotive 1812 at Tacoma, Washington, in 1935.
- ItemJMF00-01022.0 - Northern Pacific steam locomotive 1814 at Butte, Montana, in 1949.
- ItemJMF00-01023.0 - Northern Pacific steam locomotive 1815 at Bozeman, Montana, in 1943.
- ItemJMF00-01024.0 - Northern Pacific steam locomotive 1815 at Livingston, Montana, in 1952.
- ItemJMF00-01025.0 - Northern Pacific steam locomotive 1815 at Livingston, Montana, in 1934.
- ItemJMF00-01026.0 - Northern Pacific steam locomotive 1816 at Missoula, Montana, in 1943.
- ItemJMF00-01027.0 - Northern Pacific steam locomotive 1818 at Missoula, Montana, in 1943.
- ItemJMF00-01028.0 - Northern Pacific steam locomotive 1819 at Brainerd, Minnesota, in 1954.
- 893 more...