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
- 1318 more...
- ItemJMF00-00684.0 - Northern Pacific steam locomotive 1530 at Laurel, Montana, in 1954.
- ItemJMF00-00684.1 - Northern Pacific steam locomotive 1531 at Mandan, North Dakota, in 1934.
- ItemJMF00-00685.0 - Northern Pacific steam locomotive 1533 at Pasco, Washington, in 1953.
- ItemJMF00-00686.0 - Northern Pacific steam locomotive 1533 at Pasco, Washington, in 1953.
- ItemJMF00-00687.0 - Northern Pacific steam locomotive 1533 at Pasco, Washington, in 1953.
- ItemJMF00-00688.0 - Northern Pacific steam locomotive 1536 at Missoula, Montana, in 1953.
- ItemJMF00-00689.0 - Northern Pacific steam locomotive 1536 at Missoula, Montana, in 1953.
- ItemJMF00-00689.1 - Northern Pacific steam locomotive 1537 at South Tacoma, Washington, in 1936.
- ItemJMF00-00690.0 - Northern Pacific steam locomotive 1539 at Lester, Washington, circa 1907.
- 1318 more...