Railroad Archives Online
- ФондыD0027 - Timothy Miller Collection
- 004 - Northern Pacific Railroad Company
- 009 - Engineering Records
- 008 - Physical plant drawing
- 001 - Bridges
- Struc005710 - Northern Pacific Engineering Drawing, Docks at South Bend, Washington, undated
- Struc006670 - Northern Pacific Engineering Drawing, Docks at Tacoma, Washington, 1969
- Struc006671 - Northern Pacific Engineering Drawing, Docks at Tacoma, Washington, 1969
- BB014215 - Northern Pacific Engineering Drawing: General Plan, Bridge 164 - Gallatin River, West of Logan, Montana, undated
- BB014216 - Northern Pacific Engineering Drawing: General Plan, Bridge 164 - Gallatin River, West of Logan, Montana, undated
- BB014217 - Northern Pacific Engineering Drawing: Piers/Abutments, Bridge 164 - Gallatin River, West of Logan, Montana, undated
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