Columbia subject headings:
Buildings--Pennsylvania--Philadelphia.
Historic buildings--Pennsylvania--Philadelphia.
Philadelphia (Pa.)--History.
Philadelphia (Pa.)--Social life and customs.
Harvard subject headings:
Historic buildings--Pennsylvania--Philadelphia
Philadelphia (Pa.)--History.
Philadelphia (Pa.)--Social life and customs.
Princeton subject headings:
Philadelphia (Pa.)--Historic houses, etc.
Philadelphia (Pa.)--History.
Philadelphia (Pa.)--Social life and customs.