Railroad Archives Online
- CollectionD0255 - Casey Adams Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- 70 more...
- ItemAdams GN - 039 R - Great Northern Diesel Locomotive 420 at Minot, North Dakota in 1946
- ItemAdams GN - 040 R - Great Northern Diesel Locomotive 422 at Minot, North Dakota in 1947
- ItemAdams GN - 041 R - Great Northern Diesel Locomotive 500 at Spokane, Washington in 1946
- ItemAdams GN - 042 R - Great Northern Diesel Locomotive 500 at Spokane, Washington in 1946
- ItemAdams GN - 043 R - Great Northern Diesel Locomotive 79 at Seattle, Washington in 1952
- ItemAdams GN - 044 R - Great Northern Diesel Locomotive 102 at Grand Forks, North Dakota in 1946
- ItemAdams GN - 045 R - Great Northern Diesel Locomotive 103 at Minot, North Dakota in 1946
- ItemAdams GN - 046 R - Great Northern Diesel Locomotive 110 at Minot, North Dakota in 1946
- ItemAdams GN - 047 R - Great Northern Diesel Locomotives Led by 350 at Grand Forks, North Dakota in 1949
- 12 more...