Railroad Archives Online
- CollectionD0491 - Warner Swarner 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
- ItemWBSGNDepot004 - Great Northern Depot at Park River, North Dakota, undated
- ItemWBSGNDepot005 - Great Northern Depot at Monticello, Minnesota, undated
- ItemWBSGNDepot006 - Great Northern Depot at McCanna, Minnesota, undated
- ItemWBSGNDepot007 - Great Northern Depot at Manvel, North Dakota, undated
- ItemWBSGNDepot008 - Great Northern Depot at Manvel, North Dakota, undated
- 88 more...