Columbia subject headings:
Harvard subject headings:
Immigrants--Religious life--England.
Immigrants--Religious life--Wales.
Irish--England--History--20th century--Sources.
Irish--England--History--20th century.
Irish--Religious life--England.
Irish--Religious life--Wales.
Irish--Wales--History--20th century--Sources.
Irish--Wales--History--20th century.
Religion and sociology--British Isles--History--20th century.
Princeton subject headings:
Ireland--Emigration and immigration--History.