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
- 1712 more...
- ItemJMF00-00995.0 - Northern Pacific steam locomotive 1801 at Hoquiam, Washington, in 1949.
- ItemJMF00-00996.0 - Northern Pacific steam locomotive 1801 at Tacoma, Washington, in 1955.
- ItemJMF00-00997.0 - Northern Pacific steam locomotive 1801 at Seattle, Washington, in 1935.
- ItemJMF00-00997.1 - Northern Pacific steam locomotive 1801 at South Tacoma, Washington, in 1959.
- ItemJMF00-00998.0 - Northern Pacific steam locomotive 1801 at Tacoma, Washington, in 1938.
- ItemJMF00-00999.0 - Northern Pacific steam locomotive 1802 at Tacoma, Washington, in 1942.
- ItemJMF00-01000.0 - Northern Pacific steam locomotive 1802 at Tacoma, Washington, in 1937.
- ItemJMF00-01000.1 - Northern Pacific steam locomotive 1802 at Tacoma, Washington, circa 1953.
- ItemJMF00-01001.0 - Northern Pacific steam locomotive 1802 at Tacoma, Washington, in 1938.
- 924 more...