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
- 1822 more...
- ItemJMF00-01094.0 - Northern Pacific steam locomotive 1848 at Tacoma, Washington, in 1936.
- ItemJMF00-01095.0 - Northern Pacific steam locomotive 1849 at Garrison, Montana, in 1943.
- ItemJMF00-01096.0 - Northern Pacific steam locomotive 1850 at Staples, Minnesota, in 1954.
- ItemJMF00-01097.0 - Northern Pacific steam locomotive 1850 at Tacoma, Washington, in 1937.
- ItemJMF00-01098.0 - Northern Pacific steam locomotive 1851 at Brainerd, Minnesota, in 1950.
- ItemJMF00-01099.0 - Northern Pacific steam locomotive 1851 at Brainerd, Minnesota, in 1950.
- ItemJMF00-01100.0 - Northern Pacific steam locomotive 1852 at Duluth, Minnesota, in 1950.
- ItemJMF00-01101.0 - Northern Pacific steam locomotive 1852 at South Tacoma, Washington, in 1935.
- ItemJMF00-01102.0 - Northern Pacific steam locomotive 1853 at South Tacoma, Washington, in 1938.
- 814 more...