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
- 2403 more...
- ItemJMF00-01613.0 - Northern Pacific steam locomotive 4009 at Yakima, Washington, in 1935.
- ItemJMF00-01614.0 - Northern Pacific steam locomotive 4010 at Wymer, Washington, circa 1945.
- ItemJMF00-01615.0 - Northern Pacific steam locomotive 4010 at Tacoma, Washington, in 1935.
- ItemJMF00-01616.0 - Northern Pacific steam locomotive 4010 at Tacoma, Washington, in 1935.
- ItemJMF00-01617.0 - Northern Pacific steam locomotive 4010 at Easton, Washington, in 1944.
- ItemJMF00-01618.0 - Northern Pacific steam locomotive 4010 at Easton, Washington, in 1944.
- ItemJMF00-01619.0 - Northern Pacific steam locomotive 4011, circa 1919.
- ItemJMF00-01620.0 - Northern Pacific steam locomotive 4011, circa 1919.
- ItemJMF00-01621.0 - Northern Pacific steam locomotive 4011 at Lester, Washington, circa 1912.
- 233 more...