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
- 113 more...
- ItemJMF03-01954.0 - Northern Pacific diesel locomotive number 336 at Tacoma, Washington.
- ItemJMF03-01955.0 - Northern Pacific diesel locomotive number 338 at Tacoma, Washington, in 1970.
- ItemJMF03-01956.0 - Northern Pacific diesel locomotive number 345 at Auburn, Washington, in 1968.
- ItemJMF03-01957.0 - Northern Pacific diesel locomotive number 380 at Auburn, Washington, in 1967.
- ItemJMF03-01958.0 - Northern Pacific diesel locomotive number 382 at Auburn, Washington, in 1968.
- ItemJMF03-01959.0 - Northern Pacific diesel locomotive number 383 at Auburn, Washington, in 1967.
- ItemJMF03-01960.0 - Northern Pacific diesel locomotive number 400 at Spokane, Washington, in 1950.
- ItemJMF03-01961.0 - Northern Pacific diesel locomotive number 401 at Tacoma, Washington, in 1967.
- ItemJMF03-01962.0 - Northern Pacific diesel locomotive number 402 at Spokane, Washington, in 1951.
- 527 more...