Slavery--Legal Aspects--19th century 2 Slavery--Legal aspects--18th century 2 Abolitionists--New Jersey 1 African Americans--History--Fugitive slaves--19th century 1 Americana Collectors--19th Century 1 Pennsylvania--Politics and Government 1 Slavery--New Jersey--Law and legislation 1 more ... Steamboat--18th century 1 Underground Railroad 1 United States--History--War of 1812--Military Correspondence 1 United States--Politics--18th century 1 less ...