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
- 99 more...
- ItemJMF03-01941.0 - Northern Pacific diesel locomotive number 297 at Auburn, Washington, in 1967.
- ItemJMF03-01942.0 - Northern Pacific diesel locomotive number 304 at Pullman, Washington, in 1967.
- ItemJMF03-01943.0 - Northern Pacific diesel locomotive number 305 at Parkwater, Washington, in 1965.
- ItemJMF03-01943.1 - Northern Pacific diesel locomotive number 305 at Parkwater, Washington, in 1965.
- ItemJMF03-01944.0 - Northern Pacific diesel locomotive number 307 at Parkwater, Washington, in 1965.
- ItemJMF03-01945.0 - Northern Pacific diesel locomotive number 316 at Parkwater, Washington, in 1965.
- ItemJMF03-01946.0 - Northern Pacific diesel locomotive number 329 at Tacoma, Washington, in 1966.
- ItemJMF03-01947.0 - Northern Pacific diesel locomotive number 330 at Auburn, Washington, in 1970.
- ItemJMF03-01948.0 - Northern Pacific diesel locomotive number 331 at Auburn, Washington, in 1970.
- 541 more...