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
- 502 more...
- 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
- ItemStruc005240 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1957
- ItemStruc005241 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1956
- ItemStruc005242 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1959
- ItemStruc005243 - Northern Pacific Engineering Drawing, Yard Office at Yardley, Washington, 1967
- 1151 more...