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 3001 - Steam locomotives
- 1974 more...
- ItemJMF00-01223.0 - Northern Pacific steam locomotive 2170 at Tacoma, Washington, in 1935.
- ItemJMF00-01224.B - Northern Pacific steam locomotive 2176 in 1916.
- ItemJMF00-01225.0 - Northern Pacific steam locomotive 2182 at Mandan, North Dakota, in 1946.
- ItemJMF00-01226.0 - Northern Pacific steam locomotive 2184 at Seattle, Washington, in 1935.
- ItemJMF00-01227.0 - Northern Pacific steam locomotive 2185 at Easton, Washington, in 1943.
- ItemJMF00-01227.1 - Northern Pacific steam locomotive 2185 at Tacoma, Washington, in 1935.
- ItemJMF00-01227.2 - Northern Pacific steam locomotive 2185 at Tacoma, Washington.
- ItemJMF00-01228.0 - Northern Pacific steam locomotive 2185 at Tacoma, Washington, in 1934.
- ItemJMF00-01229.0 - Northern Pacific steam locomotive 2185 at Tacoma, Washington, in 1935.
- 662 more...