Railroad Archives Online
- SafnD0027 - Timothy Miller Collection
- Skjalaflokkur004 - Northern Pacific Railroad Company
- Undirskjalaflokkur009 - Engineering Records
- 008 - Physical plant drawing
- 001 - Bridges
- EiningStruc005710 - Northern Pacific Engineering Drawing, Docks at South Bend, Washington, undated
- EiningStruc006670 - Northern Pacific Engineering Drawing, Docks at Tacoma, Washington, 1969
- EiningStruc006671 - Northern Pacific Engineering Drawing, Docks at Tacoma, Washington, 1969
- EiningBB014215 - Northern Pacific Engineering Drawing: General Plan, Bridge 164 - Gallatin River, West of Logan, Montana, undated
- EiningBB014216 - Northern Pacific Engineering Drawing: General Plan, Bridge 164 - Gallatin River, West of Logan, Montana, undated
- EiningBB014217 - Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 164 - Gallatin River, West of Logan, Montana, undated
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