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
- 440 more...
- ItemNPDepot0441 - Northern Pacific Depot at Pembina, North Dakota, 1969
- ItemNPDepot0442 - Northern Pacific Depot at Perham, Minnesota, 1984
- ItemNPDepot0443 - Northern Pacific Depot at Pine River, Minnesota, undated
- ItemNPDepot0444 - Northern Pacific Depot at Pine River, Minnesota, 1983
- ItemNPDepot0445 - Northern Pacific Depot at Pingree, North Dakota, undated
- ItemNPDepot0446 - Northern Pacific Depot at Pingree, North Dakota, undated
- ItemNPDepot0447 - Northern Pacific Depot at Pingree, North Dakota, undated
- ItemNPDepot0448 - Northern Pacific Depot at Pingree, North Dakota, 1972
- ItemNPDepot0449 - Northern Pacific Depot at Pingree, North Dakota, 1982
- 212 more...