Railroad Archives Online
- CollectionE0437 - Jim Parker Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2001 - Railroads--Equipment and Supplies
- Subseries Level 3003 - Freight Cars
- 11 more...
- Item47471 - Northern Pacific Freight Car Number 27589, Mount Vernon, Illinois, 1973
- Item47472 - Northern Pacific Freight Car Number 28177, Silver Creek, New York, 1967
- Item47473 - Northern Pacific Freight Car Number 28306, Ottumwa, Iowa, 1972
- Item47474 - Northern Pacific Freight Car Number 28517, Ellensburg, Washington, 1967
- Item47475 - Northern Pacific Freight Car Number 28567, Mendota, Illinois, 1973
- Item48000 - Northern Pacific Freight Car Number 28826, Ottumwa, Iowa, 1973
- Item48001 - Northern Pacific Freight Car Number 31569, Milford, Nebraska, 1970
- Item48002 - Northern Pacific Freight Car Number 36259, Sprague, Washington, 1967 Jim Parker Photo
- Item48003 - Northern Pacific Freight Car Number 39205, Sprague, Washington, 1967 Jim Parker Photo
- 18 more...