Columbia subject headings:
Ireland--Politics and government--1922-1949.
Revolutionaries--Ireland--Biography.
Ryan, Frank, 1902-1944.
Harvard subject headings:
Ireland--Politics and government--1922-1949.
Irish Republican Army--Biography.
Revolutionaries--Ireland--Biography
Ryan, Frank, 1902-1944.
Princeton subject headings:
Ireland--Politics and government--1922-1949.
Revolutionaries--Ireland--Biography.
Ryan, Frank, 1902-1944.