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
- 2620 more...
- ItemJMF00-01823.0 - Northern Pacific steam locomotive 5140 at Missoula, Montana, in 1943.
- ItemJMF00-01824.0 - Northern Pacific steam locomotive 5140 at Missoula, Montana, in 1950.
- ItemJMF00-01825.0 - Northern Pacific steam locomotive 5140 at Spokane, Washington, in 1955.
- ItemJMF00-01826.0 - Northern Pacific steam locomotive 5140 at Spokane, Washington, in 1955.
- ItemJMF00-01827.0 - Northern Pacific steam locomotive 5141 at Easton, Washington, in 1944.
- ItemJMF00-01828.0 - Northern Pacific steam locomotive 5141 at Laurel, Montana, in 1954.
- ItemJMF00-01829.0 - Northern Pacific steam locomotive 5141, circa 1951.
- ItemJMF00-01830.0 - Northern Pacific steam locomotive 5142 at Yakima, Washington, in 1947.
- ItemJMF00-01831.0 - Northern Pacific steam locomotive 5144 at Missoula, Montana, in 1953.
- 16 more...