Railroad Archives Online
- CollectionD0027 - Timothy Miller Collection
- Series004 - Northern Pacific Railroad Company
- Subseries Level 1009 - Engineering Records
- Subseries Level 2008 - Physical plant drawing
- Subseries Level 3002 - Depots and Freighthouses
- 1136 more...
- ItemStruc006955 - Northern Pacific Engineering Drawing, Freight House at Helena, Montana, 1953
- ItemStruc006956 - Northern Pacific Engineering Drawing, Freight House at Helena, Montana, 1960
- ItemStruc006957 - Northern Pacific Engineering Drawing, Freight House at Brainerd, Minnesota, 1902
- ItemStruc006958 - Northern Pacific Engineering Drawing, Freight House at Brainerd, Minnesota, 1902
- ItemStruc006959 - Northern Pacific Engineering Drawing, Freight House at Brainerd, Minnesota, 1902
- ItemStruc006960 - Northern Pacific Engineering Drawing, Freight House at Brainerd, Minnesota, 1902
- ItemStruc006961 - Northern Pacific Engineering Drawing, Freight House at Brainerd, Minnesota, 1902
- ItemStruc006962 - Northern Pacific Engineering Drawing, Freight House at Helena, Montana, undated
- ItemStruc006963 - Northern Pacific Engineering Drawing, Freight House at Helena, Montana, 1913
- 517 more...