Agriculture--United States--Early works to 1800 1 Chronology, Historical 1 Decedents’ estates--Pennsylvania 1 Germantown (Philadelphia, Pa.)--History--Colonial period, ca. 1600-1775 1 Germantown (Philadelphia, Pa.)--History--Sources 1 Medicine--Early works to 1800 1 Middle Atlantic States--Commerce 1 more ... Pennsylvania--History 1 Pennsylvania--History--Colonial period, ca. 1600-1775 1 Plantation 1 Plantations--Pennsylvania--Philadelphia 1 Shipping--Middle Atlantic States 1 West Indies--Commerce 1 less ...