Railroad Archives Online
- 宗卷E0437 - Jim Parker Collection
- 系列004 - Northern Pacific Railroad Company
- 次系列014 - Photographs
- 001 - Railroads--Equipment and Supplies
- 002 - Diesel Locomotives
- 物件47171 - Northern Pacific Diesel Locomotive Number 2529, Ellensburg, Washington, 1967
- 物件47172 - Northern Pacific Diesel Locomotive Number 2809, Pasco, Washington, 1968
- 物件47173 - Northern Pacific Diesel Locomotive Number 5620, Galesburg, Illinois, 1973
- 物件47174 - Northern Pacific Diesel Locomotive Number 130, Saint Cloud, Minnesota, 1967
- 物件47175 - Northern Pacific Diesel Locomotive Number 293, Livingston, Montana, 1969
- 35 more...