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
- 1640 more...
- ItemJMF00-00929.0 - Northern Pacific steam locomotive 1770 at Livingston, Montana, in 1954.
- ItemJMF00-00930.0 - Northern Pacific steam locomotive 1770 at Livingston, Montana, in 1955.
- ItemJMF00-00930.1 - Northern Pacific steam locomotive 1770 at Livingston, Montana, circa 1955.
- ItemJMF00-00931.0 - Northern Pacific steam locomotive 1771 at Brainerd, Minnesota, in 1954.
- ItemJMF00-00932.0 - Northern Pacific steam locomotive 1772 at Stampede, Washington, in 1950.
- ItemJMF00-00933.0 - Northern Pacific steam locomotive 1772 at Tacoma, Washington, in 1956.
- ItemJMF00-00934.0 - Northern Pacific steam locomotive 1772 at Tacoma, Washington, in 1956.
- ItemJMF00-00935.0 - Northern Pacific steam locomotive 1772 at Tacoma, Washington, in 1937.
- ItemJMF00-00936.0 - Northern Pacific steam locomotive 1774 at Duluth, Minnesota, in 1950.
- 996 more...