Columbia subject headings:
Irish Americans--Pennsylvania--Philadelphia--History.
Philadelphia (Pa.)--Ethnic relations.
Philadelphia (Pa.)--History.
Harvard subject headings:
Irish Americans--Pennsylvania--Philadelphia--History.
Philadelphia (Pa.)--Ethnic relations.
Philadelphia (Pa.)--History.
Princeton subject headings:
Irish Americans--Pennsylvania--Philadelphia--History.
Philadelphia (Pa.)--Ethnic relations.
Philadelphia (Pa.)--History.