Columbia subject headings:
Ireland--History--19th century--Congresses.
Ireland--History--20th century--Congresses.
Irish question.
Nationalism--Ireland.
Harvard subject headings:
Ireland--Church history--19th century--Congresses.
Ireland--History--19th century--Congresses.
Ireland--History--20th century--Congresses.
Ireland--Politics and government--19th century--Congresses.
Ireland--Politics and government--20th century--Congresses.
Politics and literature--Ireland--Congresses.
Princeton subject headings:
Ireland--History--19th century--Congresses.
Ireland--History--20th century--Congresses.
Irish question.
Nationalism--Ireland.