Iron industry and trade--Pennsylvania 10 Coal Industry--19th century 5 Furniture industry and trade--Philadelphia--19th century 5 Coal Industry--Pennsylvania--19th century 4 History 4 African American business enterprises--Pennsylvania--Philadelphia 3 African American businesspeople--Pennsylvania--Philadelphia 3 more ... Coal Industry--20th century 3 Coal mines and mining--Pennsylvania 3 Coffin industry--Philadelphia (Pa.) 3 Industry and Technology--19th Century 3 Industry, Trade, and Tariffs--19th century 3 Business--History--Pennsylvania--Philadelphia--20th century 2 Carpentry--19th century 2 Copper Industry and Trade--Philadelphia--19th century 2 Estate administration--19th century 2 Forges and Furnaces--Pennsylvania--19th century 2 Forging Industry--19th century 2 Iron industry and trade--United States--History 2 Merchants--Pennsylvania--Philadelphia--19th century 2 Pharmaceutical industry--19th century 2 Salt industry--Pennsylvania 2 Shipping--Pennsylvania--Philadelphia--19th Century 2 World War, 1914-1918 2 World War, 1914-1918--Civilian relief--Pennsylvania 2 World War, 1914-1918--Participation, American 2 World War, 1914-1918--Social Commentary 2 World War, 1914-1918--War work--Great Britain 2 African American Methodists 1 African American businesspeople--Social networks 1 African American civic leaders--Pennsylvania--Philadelphia 1 African American clergy 1 African American inventors--Pennsylvania--Philadelphia 1 African American novelists--Pennsylania--Philadelphia 1 African American women journalists--Pennsylvania--Philadelphia 1 African American--Businesses 1 African American--Self-employed 1 African Americans--Civil rights--History 1 African Americans--Education--Pennsylvania--Philadelphia 1 African Americans--Employment 1 less ...