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
- 1586 more...
- ItemJMF00-00885.0 - Northern Pacific steam locomotive 1725 at Helena, Montana, in 1951.
- ItemJMF00-00886.0 - Northern Pacific steam locomotive 1728 at South Tacoma, Washington, in 1949.
- ItemJMF00-00886.1 - Northern Pacific steam locomotive 1728 at Tacoma, Washington, in 1958.
- ItemJMF00-00887.0 - Northern Pacific steam locomotive 1728 at Hoquiam, Washington, in 1950.
- ItemJMF00-00888.0 - Northern Pacific steam locomotive 1728 at Tacoma-15th St. Tower, Washington, in 1952.
- ItemJMF00-00889.0 - Northern Pacific steam locomotive 1728 at Livingston, Montana, in 1954.
- ItemJMF00-00890.0 - Northern Pacific steam locomotive 1728 at Seattle, Washington, in 1936.
- ItemJMF00-00891.0 - Northern Pacific steam locomotive 1728 at Seattle, Washington, in 1934.
- ItemJMF00-00891.1 - Northern Pacific steam locomotive 1728, circa 1956.
- 1050 more...