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
- 44 more...
- ItemWBSGNDepot048 - Great Northern Depot at Langdon, North Dakota Depot, circa 1967 or later
- ItemWBSGNDepot049 - Great Northern Depot at Lansford, North Dakota, 1968
- ItemWBSGNDepot050 - Great Northern Depot at Larimore, North Dakota, 1968
- ItemWBSGNDepot051 - Great Northern Depot at Larimore, North Dakota, undated
- ItemWBSGNDepot052 - Great Northern Depot at Larson, North Dakota, 1968
- ItemWBSGNDepot053 - Great Northern Depot at Lawton, North Dakota, 1968
- ItemWBSGNDepot054 - Great Northern Depot at Leeds, North Dakota, 1968
- ItemWBSGNDepot055 - Great Northern Depot at Lignite, North Dakota, 1969
- ItemWBSGNDepot056 - Great Northern Depot at Long Tree, North Dakota, 1968
- 40 more...