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
- 1858 more...
- ItemJMF00-01127.0 - Northern Pacific steam locomotive 1906 at Tacoma, Washington, in 1950.
- ItemJMF00-01127.1 - Northern Pacific steam locomotive 1906 at Glendive, Montana, in 1932.
- ItemJMF00-01128.0 - Northern Pacific steam locomotive 1908 at Mandan, North Dakota, in 1946.
- ItemJMF00-01129.0 - Northern Pacific steam locomotive 1908 at Laurel, Montana, in 1949.
- ItemJMF00-01130.0 - Northern Pacific steam locomotive 1908 at Laurel, Montana, in 1949.
- ItemJMF00-01131.0 - Northern Pacific steam locomotive 1908 at Laurel, Montana, in 1953.
- ItemJMF00-01132.0 - Northern Pacific steam locomotive 1908 at Forsyth, Montana, in 1935.
- ItemJMF00-01132.1 - Northern Pacific steam locomotive 1908 at Forsyth, Montana, in 1935.
- ItemJMF00-01133.0 - Northern Pacific steam locomotive 1909 in 1916.
- 778 more...