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
- 108 more...
- ItemJMF03-01949.0 - Northern Pacific diesel locomotive number 332 at Tacoma, Washington, in 1967.
- ItemJMF03-01950.0 - Northern Pacific diesel locomotive number 332 at Auburn, Washington, in 1970.
- ItemJMF03-01951.0 - Northern Pacific diesel locomotive number 333 circa 1970.
- ItemJMF03-01952.0 - Northern Pacific diesel locomotive number 334 at Tacoma, Washington, in 1970.
- ItemJMF03-01953.0 - Northern Pacific diesel locomotive number 335 at Tacoma, Washington, in 1970.
- 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.
- 532 more...