O’Kellies, [92]
O’Kennedys, [309]
Olivares, [1]
O’Madden, O’Maddens, [40], [263]
O’Malley, Dowdary Roe, [176]
— Daniel, [431]
— Grace or Grana, married to Richard-in-Iron Burke, [43], [44], [447]
O’Malleys, of Burrishole in Mayo, [175], [427], [447]
O’Meagher, [403]