Railroad Archives Online
- FondsE0357 - Wade J Stevenson Collection
- Série002 - Great Northern Railway Company (U.S.)
- Sous-série014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 003 - Freight Cars
- PièceGNRHS.55.02.18 - Great Northern Flat Car 60251 and Great Northern Trailer G264 in Washington State, undated
- PièceGNRHS.55.09.03 - Great Northern Gondola 74408 in Washington State, undated
- PièceGNRHS.55.09.04 - Great Northern Gondola 74285 in Washington State, undated
- PièceGNRHS.55.14.32 - Great Northern Express Refrigerator 1912 in Washington State, undated
- PièceGNRHS.55.15.08 - Great Northern Flat Car Carrying a United States Air Force Fire Truck in Washington State, undated
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