International Slave Trade--19th century 3 International trade--18th century 3 Merchants--Pennsylvania--Philadelphia--18th century 2 Slave trade--19th century 2 Slaves and Slave Trade--Jamaica--18th and 19th Centuries 2 Slaves and Slave Trade--Philadelphia--18th century 2 Slaves and slave trade--Pennsylvania--18th century 2 more ... Accounts--17th century 1 Africa--History--European Colonialism 1 African American--Philadelphia--Slave Trade--Kidnapping 1 Agriculture--Early 19th century 1 Anti-Masonry 1 British Navy--19th century 1 Commerce--18th century 1 Commerce--Philadelphia--17th century 1 Dickinson College 1 Education--Medicine and Medical Treatment--18th century 1 Epidemics--Yellow Fever--Philadelphia--18th Century 1 Estate administration--18th century 1 Family Correspondence--18th and 19th Century 1 Family life--Upper class--Philadelphia--18th and 19th Centuries 1 International Law and Arbitration--19th century 1 Johnston, Ebenezer 1 Law--History--19th century 1 Legal Documents--18th Century 1 Medicine--18th century 1 Merchants--Pennsylvania--Philadelphia--History 1 Merchants--United States--History--18th century 1 Politics and government--Louisiana--19th century 1 Politics and government--Philadelphia--1824 to 1828 1 Powel Genealogy 1 Real Estate--Philadelphia--18th-19th Centuries 1 Russia--African Slave Trade 1 Shipping--18th century 1 Shipping--Pennsylvania--Philadelphia--18th century 1 Shipping--Pennsylvania--Philadelphia--History 1 Slave trade--United States--History--18th century 1 Slave-trade--17th century 1 Slave-trade--18th century 1 Spoliation 1 less ...