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
- 2213 more...
- ItemJMF00-01433.0 - Northern Pacific steam locomotive 2601 at Seattle, Washington, in 1947.
- ItemJMF00-01434.0 - Northern Pacific steam locomotive 2601 at South Tacoma, Washington, in 1953.
- ItemJMF00-01435.0 - Northern Pacific steam locomotive 2601 at South Tacoma, Washington, in 1953.
- ItemJMF00-01436.0 - Northern Pacific steam locomotive 2601 at Tacoma, Washington, in 1954.
- 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.
- 423 more...