Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3002 - Depots and Freighthouses
- ItemWWAGN_Depots001 - Great Northern Depot at Alexandria, Minnesota, undated
- ItemWWAGN_Depots002 - Great Northern Depot at Alexandria, Minnesota, undated
- ItemWWAGN_Depots003 - Great Northern Depot at Alvord, Iowa, undated
- ItemWWAGN_Depots004 - Great Northern Depot at Antelope, Montana, undated
- ItemWWAGN_Depots005 - Great Northern Depot at Antler, North Dakota, undated
- ItemWWAGN_Depots006 - Great Northern Depot at Augusta, Montana, undated
- ItemWWAGN_Depots007 - Great Northern Depot at Badger, Minnesota, undated
- 182 more...