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Subject Terms
- Helmer, William Floyd,1926-,
- New York, Ontario, and Western Railway Co.
- Railroads--New York (State)--Chenango County.
- Railroads--New York (State)--Madison County.
- Railroads--New York (State)--Oneida County.
- Railroads--New York (State)--Oswego County.
- Railroads--New York (State)--Maintenance and repair.
- Railroads--New York (State)--Design and construction.
- Railroads--New York (State)--Management.
- Railroads--New York (State)--Surveying.
- Railroads--New York (State)--Timetables.
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