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
- 586 more...
- ItemJMF00-00142.1 - Northern Pacific steam locomotive 227 at Seattle, Washington, in 1935.
- ItemJMF00-00143.0 - Northern Pacific steam locomotive 232, circa 1915.
- ItemJMF00-00143.1 - Northern Pacific steam locomotive 232 at East Auburn, Washington, in 1920.
- ItemJMF00-00144.0 - Northern Pacific steam locomotive 233 at Tacoma, Washington, circa 1910.
- ItemJMF00-00144.1 - Northern Pacific steam locomotive 233 at Tacoma, Washington, circa 1910.
- ItemJMF00-00145.0 - Northern Pacific steam locomotive 235 at Tacoma, Washington, in 1936.
- ItemJMF00-00146.0 - Northern Pacific steam locomotive 235 at Portland, Oregon, circa 1928.
- ItemJMF00-00146.1 - Northern Pacific steam locomotive 235 at Tacoma, Washington, in 1936.
- ItemJMF00-00146.2 - Northern Pacific steam locomotive 235 at Tacoma, Washington, in 1936.
- 2050 more...