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
- 2178 more...
- ItemJMF00-01404.0 - Northern Pacific steam locomotive 2437 at Mandan, North Dakota, in 1934.
- ItemJMF00-01405.0 - Northern Pacific steam locomotive 2440 at Pasco, Washington, circa 1939.
- ItemJMF00-01406.0 - Northern Pacific steam locomotive 2446 at Dunkirk, New York, in 1907.
- ItemJMF00-01407.0 - Northern Pacific steam locomotive 2449 at Pasco, Washington, in 1937.
- ItemJMF00-01407.5 - Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950.
- ItemJMF00-01407.6 - Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950.
- ItemJMF00-01407.7 - Northern Pacific steam locomotive 2451 at Seattle, Washington, circa 1950.
- ItemJMF00-01408.0 - Northern Pacific steam locomotive 2453 at Tacoma, Washington, in 1945.
- ItemJMF00-01409.0 - Northern Pacific steam locomotive 2453 at South Tacoma, Washington, circa 1957.
- 458 more...