Railroad Archives Online
- CollectionD0335.2 - Northern Pacific Railway Historical Association Depot Photograph Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1014 - Photographs
- Subseries Level 2003 - Railroads--Buildings and Structures
- Subseries Level 3002 - Depots and Freighthouses
- 618 more...
- ItemNPDepot0620 - Northern Pacific Depot at Wahpeton, North Dakota, 1968
- ItemNPDepot0621 - Northern Pacific Depot at Walla Walla, Washington, 1969
- ItemNPDepot0622 - Northern Pacific Depot at Wallace, Idaho, undated
- ItemNPDepot0623 - Northern Pacific Depot at Wapato, Washington, circa 1970
- ItemNPDepot0624 - Northern Pacific Depot at Warm Springs, Montana, undated
- ItemNPDepot0625 - Northern Pacific Depot at West Duluth, Minnesota, undated
- ItemNPDepot0626 - Northern Pacific Depot at West End, Montana, undated
- ItemNPDepot0627 - Northern Pacific Depot at West Fargo, North Dakota, 1968
- ItemNPDepot0628 - Northern Pacific Depot at West Tenino, Washington, 1929
- 34 more...