Shipping--Pennsylvania--Philadelphia West Indies--Commerce 3 Commerce--19th Century 2 Philadelphia (Pa.)--Commerce 2 Port of Philadelphia 2 Commerce--Philadelphia--19th century 1 Maritime history 1 more ... Pennsylvania--Economic conditions--19th century 1 Philadelphia (Pa.)--Commerce--History--19th century 1 Ports--Philadelphia Ports - Philadelphia Ports - Philadelphia 1 Shipping--Pennsylvania--Philadelphia--19th Century 1 Slavery 1 Trade Regulations--19th century 1 Trade and professional associations--Philadelphia (Pa.)--19th century 1 Trade and professional associations--Philadelphia (Pa.)--20th century 1 Trade--Pennsylvania--19th century 1 United States--History--Civil War, 1861-1865 1 less ...