Topical Subjects
- Manholes--Pennsylvania--Beaver Falls--Design and construction.2
- Pipelines--Pennsylvania--Beaver Falls--Design and construction.71
- Pipelines--West Virginia--Williamson--Design and construction.3
- Portraits--P.1
- Railroad tracks--Pennsylvania--Beaver Falls.2
- Retaining walls--West Virginia--Morgantown--Design and construction.3
- Retaining walls--West Virginia--Morgantown.2
- Road construction workers--Pennsylvania--Beaver Falls.59
- Road construction workers--West Virginia--Morgantown.5
- Road construction workers--West Virginia--Ritchie County.8
- Road construction workers--West Virginia--Wadestown.1
- Road construction workers--West Virginia--Williamson.23
- Road construction workers.2
- Road machinery--West Virginia--Morgantown.2
- Road machinery--West Virginia--Ritchie County.7
- Road machinery--West Virginia--Wadestown.1
- Road machinery--West Virginia--Williamson.5
- Road machinery.1
- Road rollers--West Virginia--Morgantown.1
- Road rollers--West Virginia--Williamson.1