Columbia subject headings:
Archives--Pennsylvania--Philadelphia--Sources--Catalogs.
Art, American--Pennsylvania--Philadelphia--History--Sources--Catalogs.
Art--Archival resources--Pennsylvania--Philadelphia--Catalogs.
Artists--Pennsylvania--Philadelphia--Biography--Sources--Catalogs.
Harvard subject headings:
Princeton subject headings:
Archives--Pennsylvania--Philadelphia.
Art, American--Pennsylvania--Philadelphia--History--Sources--Bibliography--Catalogs.
Art--Archival resources--Pennsylvania--Philadelphia.
Artists--Pennsylvania--Philadelphia--Archives.