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
- 1332 more...
- ItemJMF00-00694.0 - Northern Pacific steam locomotive 1546 in 1916.
- ItemJMF00-00695.0 - Northern Pacific steam locomotive 1548 at Tacoma, Washington, in 1953.
- ItemJMF00-00696.0 - Northern Pacific steam locomotive 1548 at Napavine, Washington, circa 1950.
- ItemJMF00-00697.0 - Northern Pacific steam locomotive 1549 at Tacoma, Washington, in 1946.
- ItemJMF00-00697.1 - Northern Pacific steam locomotive NP 1549 at Tacoma, Washington, in 1936.
- ItemJMF00-00698.0 - Northern Pacific steam locomotive 1549 at Tacoma, Washington, circa 1950.
- ItemJMF00-00699.0 - Northern Pacific steam locomotive 1549 at South Tacoma, Washington, in 1950.
- ItemJMF00-00699.1 - Northern Pacific steam locomotive 1549 at Tacoma, Washington, in 1938.
- ItemJMF00-00700.0 - Northern Pacific steam locomotive 1552 at Manitoba Junction, Minnesota, in 1954.
- 1304 more...