Columbia subject headings:
Businessmen--Pennsylvania--Philadelphia--History--18th century.
Philadelphia (Pa.)--Commerce--History--18th century.
Philadelphia (Pa.)--Economic conditions.
Harvard subject headings:
Businessmen--Pennsylvania--Philadelphia--History--18th century.
Businesspeople--Pennsylvania--Philadelphia--History--18th century.
Philadelphia (Pa.)--Commerce--History--18th century.
Philadelphia (Pa.)--Economic conditions.
Princeton subject headings:
Businessmen--Pennsylvania--Philadelphia--History--18th century.
Philadelphia (Pa.)--Commerce--History--18th century.
Philadelphia (Pa.)--Economic conditions.