Columbia subject headings:
Harvard subject headings:
African American criminals--Pennsylvania--Philadelphia--History--19th century.
African Americans--Employment--Pennsylvania--Philadelphia--History--19th century.
African Americans--Pennsylvania--Philadelphia--Social conditions.
Philadelphia (Pa.)--Economic conditions.
Philadelphia (Pa.)--Race relations.
Philadelphia (Pa.)--Social conditions.
Violence--Pennsylvania--Philadelphia--History--19th century.
Princeton subject headings:
African American criminals--Pennsylvania--Philadelphia--History--19th century.
African Americans--Employment--Pennsylvania--Philadelphia--History--19th century.
African Americans--Pennsylvania--Philadelphia--Social conditions.
Philadelphia (Pa.)--Economic conditions.
Philadelphia (Pa.)--Race relations.
Philadelphia (Pa.)--Social conditions.
Violence--Pennsylvania--Philadelphia--History--19th century.