Railroad Archives Online
- CollectionD0059 - David Emerson 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
- ItemDEGN201314059 - Great Northern Depot at DuQuette, Minnesota, undated
- ItemDEGN201314060 - Great Northern Depot at Blanchard, Washington, undated
- ItemDEGN201314061 - Great Northern depot at Bieber, California, circa 1952 or later
- ItemDEGN201314074 - Saunders Tower at Saunders, Wisconsin, undated