Columbia subject headings:
O'Kelly, Seumas, approximately 1875-1918--Bibliography.
O'Kelly, Seumas, approximately 1875-1918.
Harvard subject headings:
Authors, Irish--20th century--Biography
Ireland--In literature.
O'Kelly, Seumas, 1881-1918.
Princeton subject headings:
Authors, Irish--20th century--Biography.
Ireland--In literature.
O'Kelly, Seumas, approximately 1875-1918.