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 3010 - Miscellaneous
- 22 more...
- ItemJMF00-00612.0 - Northern Pacific steam locomotive 1364 at Tacoma, Washington, in 1954.
- ItemJMF00-01668.0 - Northern Pacific steam locomotive 5000 in 1928.
- ItemJMF00-01670.0 - Northern Pacific steam locomotive 5000, circa 1930.
- ItemJMF00-01671.0 - Northern Pacific steam locomotive 5000, circa 1930.
- ItemJMF00-01819.1 - Northern Pacific steam locomotive 5138.