O’Driscoll, of Baltimore in West Cork, [88]
O’Duffy, Keyly, Archbishop of Tuam, [51]
O’Dwyer, of Kilnemanagh in Tipperary, [242], [266]
Offaly (greater part of King’s Co. and part of Queen’s Co.), [206], [211], [213], [218], [349], [350], [373], [392], [399], [400], [401], [408], [409]
— Barony of, in Kildare, [251]
O’Fihely, Maurice, Archbishop of Tuam, [292]
O’Gallagher, Edmund, Bishop of Raphoe, [293]
— Raymond, Bishop of Killala (Papal), and afterwards of Derry, [293], [307]
O’Gallaghers, the, of Donegal, [140]
O’Grady, chief of a district near Killaloe in Clare and Galway, [271]