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
- 1324 more...
- 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.
- ItemJMF00-00691.0 - Northern Pacific steam locomotive 1539 at Lewiston (near), Idaho, in 1950.
- ItemJMF00-00692.0 - Northern Pacific steam locomotive 1544 at Portland, Oregon, in 1911.
- ItemJMF00-00693.0B - Northern Pacific steam locomotive 1544 at Lester, Washington, circa 1915.
- ItemJMF00-00693.1 - Northern Pacific steam locomotive 1544 at Forsyth, Montana, in 1934.
- ItemJMF00-00693.2 - Northern Pacific steam locomotive 1544 at Forsyth, Montana, in 1934.
- ItemJMF00-00694.0 - Northern Pacific steam locomotive 1546 in 1916.
- 1312 more...