Railroad Archives Online
- FondD0027 - Timothy Miller Collection
- Sorozat004 - Northern Pacific Railroad Company
- Alsorozat009 - Engineering Records
- 008 - Physical plant drawing
- 001 - Bridges
- IratdarabStruc005710 - Northern Pacific Engineering Drawing, Docks at South Bend, Washington, undated
- IratdarabStruc006670 - Northern Pacific Engineering Drawing, Docks at Tacoma, Washington, 1969
- IratdarabStruc006671 - Northern Pacific Engineering Drawing, Docks at Tacoma, Washington, 1969
- IratdarabBB014215 - Northern Pacific Engineering Drawing: General Plan, Bridge 164 - Gallatin River, West of Logan, Montana, undated
- IratdarabBB014216 - Northern Pacific Engineering Drawing: General Plan, Bridge 164 - Gallatin River, West of Logan, Montana, undated
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