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
- 541 more...
- ItemJMF02-03712.0 - Northern Pacific diesel locomotive 6005 at Kanaskat, Washington, in 1945.
- ItemJMF02-03714.0 - Northern Pacific diesel locomotive 5402D at Lester, Washington, in 1955.
- ItemJMF02-03715.0 - Northern Pacific diesel locomotive 7004A at Lester, Washington, in 1967.
- ItemJMF02-03718.0 - Northern Pacific diesel locomotive between Lester and Stampede, Washington, in 1967.
- ItemJMF02-03719.0 - Northern Pacific diesel locomotive at Borup Loop, Washington, in 1967.
- ItemJMF02-03723.0 - Electro-Motive Division demonstrator diesel locomotive FT at Stampede, Washington, in 1940.
- ItemJMF02-03723.1 - Electro-Motive Division demonstrator diesel locomotive FT at Easton, Washington, in 1940.
- ItemJMF02-03724.0 - Northern Pacific diesel locomotive 6000 at Stampede, Washington, in 1945.
- ItemJMF02-03725.0 - Northern Pacific diesel locomotive at Stampede, Washington, in 1945.
- 99 more...