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
- 26 more...
- ItemJMF03-01874.0 - Northern Pacific diesel locomotive number 144.
- ItemJMF03-01875.0 - Northern Pacific diesel locomotive number 145 at Auburn, Washington.
- ItemJMF03-01876.0 - Northern Pacific diesel locomotive number 145 at Tacoma, Washington, in 1970.
- ItemJMF03-01877.0 - Northern Pacific diesel locomotive number 146.
- ItemJMF03-01878.0 - Northern Pacific diesel locomotive number 149 at Tacoma, Washington, in 1966.
- ItemJMF03-01879.0 - Northern Pacific diesel locomotive number 150 at Tacoma, Washington, circa 1946.
- ItemJMF03-01880.0 - Northern Pacific diesel locomotive number 155 at Auburn, Washington, circa 1946.
- ItemJMF03-01881.0 - Northern Pacific diesel locomotive number 158 at Dilworth, Minnesota, in 1946.
- ItemJMF03-01882.0 - Northern Pacific diesel locomotive number 159 at Auburn, Washington, circa 1949.
- 614 more...