Turnpikes--Pennsylvania--19th century 7 Roads--Pennsylvania--18th and 19th centuries 2 Canals--Pennsylvania 1 Downingtown Ephrata & Harrisburg Road Company (Harrisburg, Pa.) 1 Land Surveys--18th century 1 Receipt books--19th century 1 Roads--Design and construction 1 more ... Roads--Maintenance--19th century 1 Roads--Pennsylvania--19th century 1 Surveys--Pennsylvania--18th and 19th centuries 1 Surveys--Pennsylvania--19th century 1 Turnpikes 1 less ...