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
- 38 more...
- ItemJMF03-01886.0 - Northern Pacific diesel locomotive number 161 at Auburn, Washington.
- ItemJMF03-01887.0 - Northern Pacific diesel locomotive number 163 at Tacoma, Washington, in 1946.
- ItemJMF03-01888.0 - Northern Pacific diesel locomotive number 168 at Tacoma, Washington, circa 1949.
- ItemJMF03-01889.0 - Northern Pacific diesel locomotive number 169 at Auburn, Washington, in 1946.
- ItemJMF03-01890.0 - Northern Pacific diesel locomotive number 175 at Tacoma, Washington, in 1970.
- ItemJMF03-01891.0 - Northern Pacific diesel locomotive number 175 at Tacoma, Washington, in 1970.
- ItemJMF03-01891.1 - Northern Pacific diesel locomotive number 175 at Eddystone, Pennsylvania, in 1948.
- ItemJMF03-01891.2 - Northern Pacific diesel locomotive number 176 at Spokane, Washington, in 1948.
- ItemJMF03-01892.0 - Northern Pacific diesel locomotive number 177 at Pasco, Washington, in 1948.
- 602 more...