Railroad Archives Online
- 宗卷D0288 - Terence Wahl Collection
- 系列003 - Great Northern Railway Company (U.S.)
- 次系列014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 002 - Diesel Locomotives
- 物件TRWahl0001 - Great Northern Diesel Locomotive 609, Rockport, Washington, undated
- 物件TRWahl0002 - Great Northern Diesel Locomotive with Freight Train, Kelso, Washington, August 1951
- 物件TRWahl0003 - Great Northern Diesel Locomotive 275A, Havre, Montana, undated
- 物件TRWahl0026 - Great Northern Diesel Locomotive 351C, Bellingham, Washington, undated
- 物件TRWahl0027 - Great Northern Diesel Locomotive 261A, Bellingham, Washington, undated
- 209 more...