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
- 1277 more...
- ItemJMF00-00658.0 - Northern Pacific steam locomotive 1501 at Auburn, Washington, in 1949.
- ItemJMF00-00659.0 - Northern Pacific steam locomotive 1501 at Auburn, Washington, in 1953.
- ItemJMF00-00660.0 - Northern Pacific steam locomotive 1501 at South Tacoma, Washington, in 1954.
- ItemJMF00-00660.1 - Northern Pacific steam locomotive 1501 at Tacoma, Washington, in 1935.
- ItemJMF00-00661.0 - Northern Pacific steam locomotive 1502 at White Pine, Montana, in 1909.
- ItemJMF00-00662.0 - Northern Pacific steam locomotive 1502, circa 1905.
- ItemJMF00-00663.0 - Northern Pacific steam locomotive 1502 at White Pine, Montana, in 1909.
- ItemJMF00-00663.1 - Northern Pacific steam locomotive 1505 at South Tacoma, Washington, in 1937.
- ItemJMF00-00664.0 - Northern Pacific steam locomotive 1506 at Spokane, Washington, in 1941.
- 1359 more...