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
- 495 more...
- ItemJMF00-00089.0 - Northern Pacific steam locomotive 35 at Yakima, Washington, in 1954.
- ItemJMF00-00090.0 - Northern Pacific steam locomotive 35 at Auburn, Washington, in 1956.
- ItemJMF00-00090.1 - Northern Pacific steam locomotive 35 at Auburn, Washington, circa 1950.
- ItemJMF00-00091.0 - Northern Pacific steam locomotive 36 at Missoula, Montana, in 1943.
- ItemJMF00-00092.0 - Northern Pacific steam locomotive 36 at Butte, Montana, in 1949.
- ItemJMF00-00093.0 - Northern Pacific steam locomotive 36 at Butte, Montana, in 1949.
- ItemJMF00-00094.0 - Northern Pacific steam locomotive 36 at Missoula, Montana, in 1954.
- ItemJMF00-00095.0 - Northern Pacific steam locomotive 39 at Brainerd, Minnesota, in 1950.
- ItemJMF00-00096.0 - Northern Pacific steam locomotive 39 in 1916.
- 2141 more...