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
- 2217 more...
- ItemJMF00-01437.0 - Northern Pacific steam locomotive 2601 at Tacoma, Washington, in 1954.
- ItemJMF00-01437.1 - Northern Pacific steam locomotive 2601 at Tacoma, Washington, circa 1946.
- ItemJMF00-01438.0 - Northern Pacific steam locomotive 2602 at Tacoma, Washington, in 1947.
- ItemJMF00-01438.1 - Northern Pacific steam locomotive 2602 at Tacoma, Washington, in 1947.
- ItemJMF00-01439.0 - Northern Pacific steam locomotive 2602 at Puyallup, Washington, in 1954.
- ItemJMF00-01439.1 - Northern Pacific steam locomotive 2602 at Seattle, Washington, circa 1950.
- ItemJMF00-01440.0 - Northern Pacific steam locomotive 2603 at Missoula, Montana, in 1940.
- ItemJMF00-01441.0 - Northern Pacific steam locomotive 2603 at Tacoma, Washington, circa 1943.
- ItemJMF00-01442.0 - Northern Pacific steam locomotive 2603 at Tacoma, Washington, circa 1943.
- 419 more...