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
- 2101 more...
- ItemJMF00-01333.0 - Northern Pacific steam locomotive 2251 at East Auburn, Washington, in 1943.
- ItemJMF00-01334.0 - Northern Pacific steam locomotive 2251 at South Tacoma, Washington, circa 1952.
- ItemJMF00-01334.1 - Northern Pacific steam locomotive 2251 at South Tacoma, Washington, in 1953.
- ItemJMF00-01335.0 - Northern Pacific steam locomotive 2252 at Dilworth, Minnesota, in 1946.
- ItemJMF00-01336.0 - Northern Pacific steam locomotive 2254 at Brainerd, Minnesota, in 1952.
- ItemJMF00-01337.0 - Northern Pacific steam locomotive 2256 at Seattle, Washington, in 1946.
- ItemJMF00-01338.0 - Northern Pacific steam locomotive 2256 at Livingston, Montana, in 1953.
- ItemJMF00-01339.0 - Northern Pacific steam locomotive 2256 at Livingston, Montana, in 1953.
- ItemJMF00-01340.0 - Northern Pacific steam locomotive 2258 at Easton, Washington, in 1953.
- 535 more...