Columbia subject headings:
Ireland--History--War of Independence, 1919-1921.
Police administration--Great Britain--History--20th century.
Police--Recruiting--Great Britain--History--20th century.
Royal Irish Constabulary Reserve Force--History.
Harvard subject headings:
Ireland--History--War of Independence, 1919-1921.
Police administration--Great Britain--History--20th century.
Police--Recruiting--Great Britain--History--20th century.
Royal Irish Constabulary Reserve Force--History.
Princeton subject headings:
Ireland--History--War of Independence, 1919-1921.
Police administration--Great Britain--History--20th century.
Police--Recruiting--Great Britain--History--20th century.
Royal Irish Constabulary Reserve Force--History.