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
- 53 more...
- ItemWWANT061 - Northern Pacific steam locomotive 2193 at Allentown, Washington, circa 1941.
- ItemWWANT062 - Northern Pacific steam locomotive 2263 at Allentown, Washington, circa 1941.
- ItemWWANT063 - Northern Pacific steam locomotive 2262 at Allentown, Washington, circa 1941.
- ItemWWANT064 - Northern Pacific steam locomotive 2247 at Allentown, Washington, circa 1941.
- ItemWWANT065 - Northern Pacific steam locomotive 2261 at Allentown, Washington, circa 1941.
- ItemWWANT066 - Northern Pacific steam locomotive 2262 at Allentown, Washington, circa 1941.
- ItemWWANT067 - Northern Pacific steam locomotive 1381 at Allentown, Washington, in 1941.
- ItemWWANT068 - Northern Pacific steam locomotive 1678 at Allentown, Washington, in 1941.
- ItemWWANT069 - Northern Pacific steam locomotive 2241 at Allentown, Washington, circa 1941.
- 206 more...