Railroad Archives Online
- CollectionD0063 - Walter W. Ainsworth Collection
- Series003 - Great Northern Railway Company (U.S.)
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3003 - Freight Cars
- 13 more...
- ItemJATGTrainIndex - Great Northern Railway freight cars at Index, Washington, undated.
- ItemJATGTrainInterbayCut - Great Northern Railway freight cars at Interbay, Washington, undated.
- ItemJATGTrainNBallard - Great Northern Railway freight cars at Ballard, Washington, undated.
- ItemJATGTunnel - Great Northern Railway freight cars in Washington, undated.
- ItemWWASPSL8-160 - Great Northern Freight Car GN 4457 at Warrenton, Oregon, undated