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Topical Subjects
- Surveyors.7
- Railroads--Employees.6
- Surveyors--West Virginia.5
- Portraits--Group.4
- Non-WV--Pennsylvania.3
- Railroads--Design and construction.3
- Portraits--B.2
- Railroads--Portraits--Group.2
- Surveying.2
- Camps--West Virginia.1
- Men.1
- Railroad bridges.1
- River boats--Pennsylvania--Pittsburgh.1
- Steamboats--Monongahela River (W. Va. and Pa.)1