Cornell University Library Digital Collections
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Subject
- Bridges (built works)4
- Chicago, Milwaukee, St. Paul, and Pacific Railroad Company4
- Great Northern Railway Company (U.S.)5
- Northern Pacific Railroad Company5
- Pacific Coast Railroad Company4
- Railroad crossings5
- Railroad tracks5
- Railroads--Buildings and structures4
- Railroads--Employees1
- Railroads--Signaling5
- Union Pacific Railroad Company4