Columbia subject headings:
Famines--Ireland--History--19th century.
Ireland--Economic conditions.
Ireland--Population--History--19th century.
Harvard subject headings:
Famines--Ireland--History--19th century
Ireland--Economic conditions--19th century.
Ireland--Economic conditions.
Ireland--History--Famine, 1845-1852.
Ireland--Population--History--19th century.
Princeton subject headings:
Famines--Ireland--History--19th century.
Ireland--Economic conditions.
Ireland--Population--History--19th century.