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 3002 - Diesel locomotives
- 556 more...
- ItemJMF02-03730.0 - Northern Pacific diesel locomotive 6007 at Stampede, Washington, in 1945.
- ItemJMF02-03731.0 - Northern Pacific diesel locomotive 6007 at Stampede, Washington, in 1945.
- ItemJMF02-03732.0 - Northern Pacific diesel locomotive at Stampede, Washington, circa 1950.
- ItemJMF02-03733.0 - Northern Pacific diesel locomotive at Stampede, Washington, in 1962.
- ItemJMF02-03734.0 - Northern Pacific diesel locomotive at Stampede, Washington, in 1962.
- ItemJMF02-03736.0 - Northern Pacific diesel locomotive 5407 at Stampede, Washington, in 1949.
- ItemJMF02-03737.0 - Northern Pacific diesel locomotive 6000 at Martin, Washington, in 1944.
- ItemJMF02-03738.0 - Northern Pacific diesel locomotive 7001D at Martin, Washington, in 1961.
- ItemJMF02-03747.0 - Northern Pacific steam locomotive 5111 at Easton, Washington, in 1944.
- 84 more...