O'Neill's, the, [35], [58], [60], [64], [65], [74], [452], [515]
O'Neill, Owen, [614-5]
O'Neill, of Clanaboy, [623]
O'Neill, Shane, [65]
O'Neills, wanderings in 1607, [566]
O'Neaghtan, John, poet, etc., [597] ff.
O'Neaghtain, or O'Naghten Teig, poet and lexicographer, [599]
O'Pronty, Patrick, [258]
O'Rahilly, poet, [604]
Ordeal, druidic, [90]