Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3001 - Steam Locomotives
- 12 more...
- ItemWWANT014 - Northern Pacific steam locomotive 1507 in Seattle, Washington, circa 1925.
- ItemWWANT015 - Northern Pacific steam locomotive 2265 at Seattle, Washington, circa 1940.
- ItemWWANT016 - Northern Pacific steam locomotive 2238 at Black River, Washington, circa 1940.
- ItemWWANT017 - Northern Pacific steam locomotive 2264 at Seattle, Washington, circa 1940.
- ItemWWANT018 - Northern Pacific steam locomotive 2249 at Black River, Washington, circa 1940.
- ItemWWANT020 - Northern Pacific steam locomotive 2241 at Seattle, Washington, in 1938.
- ItemWWANT021 - Northern Pacific steam locomotive number 1772 at Seattle, Washington, in 1941.
- ItemWWANT022 - Northern Pacific steam locomotive 2264 at Seattle, Washington, circa 1940.
- ItemWWANT023 - Northern Pacific steam locomotive 2260 at Seattle, Washington, circa 1941.
- 247 more...