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
- 77 more...
- ItemWWANT090 - Northern Pacific steam locomotive 2247 at Black River, Washington, circa 1941.
- ItemWWANT092 - Northern Pacific steam locomotive 2603 at Black River, Washington, circa 1941.
- ItemWWANT094 - Northern Pacific steam locomotive 2262 at Black River, Washington, circa 1941.
- ItemWWANT095 - A Northern Pacific steam locomotive near Seattle, Washington, circa 1935.
- ItemWWANT096 - Northern Pacific steam locomotive 2263 near Seattle, Washington, circa 1941.
- ItemWWANT097 - Northern Pacific steam locomotive 2262 near Seattle, Washington, circa 1941.
- ItemWWANT098 - Northern Pacific steam locomotive 2263 at Kent, Washington, circa 1941.
- ItemWWANT099 - A Northern Pacific steam locomotive at Seattle, Washington, circa 1946.
- ItemWWANT107 - Great Northern steam locomotive 1017 at Seattle, Washington, in 1924.
- 181 more...