Columbia subject headings:
Harvard subject headings:
Ireland--History--1837-1901.
Ireland--History--1901-1910.
Ireland--History--1910-1921.
Ireland--Politics and government.
Irish question.
Nationalism--Ireland--History
Princeton subject headings:
Ireland--Politics and government.
Nationalism--Ireland--History.
Republicanism--Ireland--History.
Revolutionaries--Ireland--History.