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
- 162 more...
- 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.
- ItemJMF03-02007.0 - Northern Pacific diesel locomotive number 802 at Dilworth, Minnesota, in 1954.
- ItemJMF03-02008.0 - Northern Pacific diesel locomotive number 852 at Duluth, Minnesota, in 1954.
- ItemJMF03-02008.1 - Northern Pacific diesel locomotive number 852 at Duluth, Minnesota, in 1954.
- ItemJMF03-02009.0 - Northern Pacific diesel locomotive number 855 at Duluth, Minnesota, in 1954.
- 478 more...