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
- 498 more...
- ItemStruc005231 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1982
- ItemStruc005232 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1959
- ItemStruc005233 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1959
- ItemStruc005234 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1958
- ItemStruc005235 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1956
- ItemStruc005236 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1958
- ItemStruc005237 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1964
- ItemStruc005238 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1963
- ItemStruc005239 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1967
- 1155 more...