Administration of estates 1 Boundary disputes 1 Department stores 1 Estate administration--18th century 1 Executors and administrators 1 Farm life--18th century 1 Horses 1 more ... Indians--First contact with Europeans 1 International trade 1 International trade--19th century 1 Legal issues 1 Mason-Dixon Line 1 Memoranda 1 Merchants 1 Mills and mill-work 1 Native Americans 1 Pennsylvania--Boundaries 1 Pennsylvania--History--Colonial period, ca. 1600-1775 1 Publishers and publishing 1 Real estate, transactions--Philadelphia--19th century 1 Real estate--19th century 1 Real estate--Pennsylvania--19th century 1 Real estate--Pennsylvania--Philadelphia 1 Real estate--Rentals--Philadelphia--19th century 1 Real estate--Transactions 1 Science publishing 1 Slavery 1 Slavery--18th century 1 Slavery--United States--18th century 1 Slaves 1 less ...