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 3003 - Freight cars
- ItemJMF01-03701.0 - French box car at Olympia, Washington, circa 1954.
- ItemJMF01-3600.1 - Northern Pacific trains meet near Chehalis, Washington, in 1954.
- ItemJMF02-03708.0 - Northern Pacific freight train near East Auburn, Washington, in 1967.
- ItemJMF02-03709.0 - Northern Pacific freight train near East Auburn, Washington, in 1967.
- ItemJMF02-03707.0 - Northern Pacific freight train near East Auburn, Washington, in 1967.
- ItemJMF02-03838.1 - Northern Pacific diesel locomotive 6052A at Tacoma, Washington, in 1969.
- ItemJMF02-03710.0 - Northern Pacific freight train near Kanaskat, Washington, circa 1947.
- ItemJMF02-03716.0 - Scout troop watch Northern Pacific at Lester, Washington, on July 09, 1967.
- ItemJMF02-03740.0 - Northern Pacific steam locomotive at Martin, Washington, circa 1917.
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