Railroad Archives Online
- 宗卷D0288 - Terence Wahl Collection
- 系列002 - Chicago, Milwaukee, St. Paul, and Pacific Railroad Company
- 次系列014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 001 - Steam Locomotives
- 物件TRWahl0022 - Milwaukee Road Steam Locomotive 1220, Bellingham, Washington, March-May 1951
- 物件TRWahl0024 - Milwaukee Road Steam Locomotive 1476, Bellingham, Washington, June-August 1952
- 物件TRWahl0380 - Milwaukee Road Steam Locomotive 1494, Bellingham, Washington, undated
- 物件TRWahl0382 - Milwaukee Road Steam Locomotive 1220, Bellingham, Washington, undated
- 物件TRWahl0383 - Milwaukee Road Steam Locomotive 1220, Bellingham, Washington, undated
- 6 more...