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
- 1375 more...
- ItemJMF00-00721.0 - Northern Pacific steam locomotive 1575 at Pasco, Washington, in 1948.
- ItemJMF00-00721.1 - Northern Pacific steam locomotive 1575 at Tacoma, Washington, in 1935.
- ItemJMF00-00722.0 - Northern Pacific steam locomotive 1578 at Dilworth, Minnesota, in 1951.
- ItemJMF00-00723.0 - Northern Pacific steam locomotive 1579 at Dilworth, Minnesota, in 1952.
- ItemJMF00-00724.0 - Northern Pacific steam locomotive 1583 at Brainerd, Minnesota, in 1954.
- ItemJMF00-00724.1 - Northern Pacific steam locomotive 1586 at Tacoma, Washington, in 1933.
- ItemJMF00-00724.2 - Northern Pacific steam locomotive 1586 at South Tacoma, Washington, in 1936.
- ItemJMF00-00724.3 - Northern Pacific steam locomotive 1586 at Tacoma, Washington, in 1934.
- ItemJMF00-00725.0 - Northern Pacific steam locomotive 1588 at North Bemidji, Minnesota, in 1954.
- 1261 more...