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
- 18 more...
- ItemCRAGND208 - Great Northern Diesel Locomotive 550 in North Dakota, 1961
- ItemCRAGND209 - Great Northern Diesel Locomotive 367-A in Seattle, Washington, 1968
- ItemCRAGND210 - Great Northern Diesel Locomotives 126 and 16, undated
- ItemCRAGND211 - Great Northern Diesel Locomotive 320 in Washington, 1966
- ItemCRAGND212 - Great Northern Diesel Locomotive 182, 1946
- ItemCRAGND213 - Great Northern Diesel Locomotive 404 in Montana, 1944
- ItemCRAGND214 - Great Northern Diesel Locomotive 110 in North Dakota, 1946
- ItemCRAGND215 - Great Northern Diesel Locomotive 404 in Washington, 1946
- ItemCRAGND216 - Great Northern Diesel Locomotive 101 in North Dakota, 1946
- 64 more...