Railroad Archives Online
- FondoD0063 - Walter W. Ainsworth Collection
- Serie003 - Great Northern Railway Company (U.S.)
- Subserie014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 002 - Diesel Locomotives
- Unidad documental simpleWWAPC0256 - Great Northern Railway diesel locomotive number 77 at Renton, Washington, circa 1953.
- Unidad documental simpleWWAPC0257 - Great Northern Railway diesel locomotive number 77 at Renton, Washington, circa 1953.
- Unidad documental simpleWWAPC0258 - Great Northern Railway diesel locomotive number 228 at Renton, Washington, circa 1965.
- Unidad documental simpleWWAPC0259 - Great Northern Railway diesel locomotive number 228 at Renton, Washington, circa 1965.
- Unidad documental simpleWWAPC0260 - Great Northern Railway diesel locomotive number 228 at Renton, Washington, circa 1965.
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