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
- 270 more...
- ItemJMF03-02108.0 - Northern Pacific diesel locomotive number 6007 at Easton, Washington, in 1945.
- ItemJMF03-02109.0 - Northern Pacific diesel locomotive number 5408 at Portland, Oregon, in 1964.
- ItemJMF03-02110.0 - Northern Pacific diesel locomotive number 5408 at Portland, Oregon, in 1964.
- ItemJMF03-02111.0 - Northern Pacific diesel locomotive number 5409 at Auburn, Washington, in 1967.
- ItemJMF03-02112.0 - Northern Pacific diesel locomotive number 5409 at Tacoma, Washington, in 1967.
- ItemJMF03-02113.0 - Northern Pacific diesel locomotive number 5409 at Tacoma, Washington, in 1967.
- ItemJMF03-02114.0 - Northern Pacific diesel locomotive number 5409 at Auburn, Washington, in 1967.
- ItemJMF03-02115.0 - Northern Pacific diesel locomotive number 5410 at Auburn, Washington, in 1950.
- ItemJMF03-02116.0 - Northern Pacific diesel locomotive number 6000 at Stampede, Washington, in 1944.
- 370 more...