Ó Murchadha Aongus
O'Brien Kevin M.
O'Bryan H. M.
O'Connell Daniel R. H.
O'Connell-Cooper Catherine
O'Connor Edward A.
O'Connor G. G.
O'Connor James E.
O'Connor Matthew S.
O'Connor Vanessa
O'Donnell James
O'Donnell William
O'Donoghue Darragh E.
O'Donoghue P. J.
O'Donovan Francis
O'Driscoll Don
O'Farrell Keely A.
O'Gorman P.
O'Grady K. M.
O'Grady R.