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
- 1386 more...
- ItemJMF00-00726.9 - Northern Pacific steam locomotive 1591 at Tacoma, Washington, circa 1937.
- ItemJMF00-00727.0 - Northern Pacific steam locomotive 1592 at Paradise, Montana, in 1954.
- ItemJMF00-00728.0 - Northern Pacific steam locomotive 1594 at Logan, Montana, in 1943.
- ItemJMF00-00729.0 - Northern Pacific steam locomotive 1594 at Livingston, Montana, in 1949.
- ItemJMF00-00730.0 - Northern Pacific steam locomotive 1595 at Dilworth, Minnesota, in 1954.
- ItemJMF00-00730.1 - Northern Pacific steam locomotive 1596 at Spokane, Washington, in 1933.
- ItemJMF00-00731.0 - Northern Pacific steam locomotive 1598, circa 1910.
- ItemJMF00-00732.0 - Northern Pacific steam locomotive 1598, circa 1910.
- ItemJMF00-00733.0 - Northern Pacific steam locomotive 1600 at South Tacoma, Washington, in 1936.
- 1250 more...