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
- 14 more...
- ItemWBSGNDepot018 - Great Northern Depot at Litchfield, Minnesota, undated
- ItemWBSGNDepot019 - Great Northern Depot at Lockhart, Minnesota, 1968
- ItemWBSGNDepot020 - Great Northern Depot at Long Prairie, Minnesota, 1968
- ItemWBSGNDepot021 - Great Northern Depot at McIntosh, Minnesota, 1968
- ItemWBSGNDepot022 - Great Northern Depot at Markville, Minnesota, undated
- ItemWBSGNDepot023 - Great Northern Depot at Mentor, Minnesota, 1968
- ItemWBSGNDepot024 - Great Northern Depot at Middle River, Minnesota, 1968
- ItemWBSGNDepot025 - Great Northern Depot at Milaca, Minnesota, 1968
- ItemWBSGNDepot026 - Great Northern Depot at Montrose, Minnesota, undated
- 70 more...