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
- 535 more...
- ItemJMF01-03704.0 - Electro-Motive Division diesel locomotive at Allentown, Washington, in 1946.
- ItemJMF02-03706.0 - Northern Pacific diesel locomotive 3616 near East Auburn, Washington, in 1968.
- ItemJMF02-03706.1 - Northern Pacific diesel locomotive 3606 near East Auburn, Washington, in 1968.
- ItemJMF02-03706.2 - Northern Pacific diesel locomotive 2516 near East Auburn, Washington, in 1968.
- ItemJMF02-03706.3 - Northern Pacific diesel locomotive 3606 near East Auburn, Washington, in 1968.
- ItemJMF02-03711.0 - Northern Pacific diesel locomotive 6001 with a freight train at Kanaskat, Washington, in 1944.
- 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.
- 105 more...