Columbia subject headings:
Harvard subject headings:
Famines--Ireland
Ireland--History--1837-1901.
Ireland--History--Famine, 1845-1852.
Land tenure--Ireland--History--19th century.
Poor--Ireland--History--19th century.
Princeton subject headings:
Ireland--History--Famine, 1845-1852.
Land tenure--Ireland--History--19th century.
Poor--Ireland--History--19th century.