Pennsylvania--History 2 Pennsylvania--History--Colonial period, ca. 1600-1775 2 American newspapers--Ownership 1 Business records--Pennsylania--Philadelphia--19th century 1 Canals--Chesapeake and Delaware 1 Charities--Pennsylvania--Philadelphia 1 Chronology, Historical 1 more ... College trustees--United States 1 Commerce--Philadelphia--19th century 1 Decedents’ estates--Pennsylvania 1 Department stores--Pennsylvania--Philadelphia 1 Depressions--1929--Pennsylvania--Philadelphia 1 Estate administration--19th century 1 Germantown (Philadelphia, Pa.) 1 Germantown (Philadelphia, Pa.)--History 1 Graeme Park, Pa 1 Grotjan's Philadelphia Public Sales Reports 1 Historians--19th century 1 Historians--Pennsylvania 1 Historical Society of Pennsylvania 1 Historical Society of Pennsylvania--Founding members 1 Historical Society of Pennsylvania--Researchers 1 History of Philadelphia 1 History--Publishing 1 Hobbyists--Pennsylvania 1 Hotels--Pennsylvania--Philadelphia 1 Indians--18th century 1 Indians--19th century 1 Insurance companies--United States 1 International trade--18th century 1 International trade--19th century 1 Jews, American 1 Land Settlement--Pennsylvania--18th century 1 Land settlement--Pennsylvania 1 Maps--Pennsylvania 1 Maps--Pennsylvania--Bucks County 1 Maps--Pennsylvania--Philadelphia County 1 Mason-Dixon Line 1 Merchants--Pennsylvania--Philadelphia--18th century 1 Merchants--Pennsylvania--Philadelphia--19th century 1 less ...