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
- 158 more...
- ItemJMF03-01998.1 - Northern Pacific diesel locomotive number 558 at Auburn, Washington, in 1954.
- ItemJMF03-01999.0 - Northern Pacific diesel locomotive number 563 at Auburn, Washington, in 1970.
- ItemJMF03-02000.0 - Northern Pacific diesel locomotive number 569 at Garrison, Montana, in 1955.
- ItemJMF03-02001.0 - Northern Pacific diesel locomotive number 569 at Garrison, Montana, in 1955.
- ItemJMF03-02002.0 - Northern Pacific diesel locomotive number 602 at Fargo, North Dakota, in 1950.
- ItemJMF03-02003.0 - Northern Pacific diesel locomotive number 650 at Auburn, Washington, in 1952.
- ItemJMF03-02004.0 - Northern Pacific diesel locomotive number 651 circa 1950.
- ItemJMF03-02005.0 - Northern Pacific diesel locomotive number 651 at Auburn, Washington, circa 1955.
- ItemJMF03-02006.0 - Northern Pacific diesel locomotive number 706 at Mandan, North Dakota, in 1950.
- 482 more...