Railroad Archives Online
- CollectionE0437 - Jim Parker Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3002 - Diesel Locomotives
- Item35042 - Great Northern Diesel Locomotive Number 2507, Spokane, Washington, 1969
- Item35043 - Great Northern Diesel Locomotive Number 2514, Spokane, Washington, 1969
- Item35044 - Great Northern Diesel Locomotive Number 2522, Spokane, Washington, 1969
- Item35045 - Great Northern Diesel Locomotive Number 2537, Spokane, Washington, 1969
- Item35046 - Great Northern Diesel Locomotive (as Burlington Northern Number 5405), Pacific Junction, Iowa, 1973
- 21 more...