Note from The O'Grady Papers: The pedigree of this ancient Irish family, of whom the head is known as The O Grady, will be found in Burke’s Landed Gentry of Ireland (p. 531, 1912 edn ). Three errors in it, as printed there, may be corrected here : Gilladuff, given by Burke as father of Matthew, who married Alicia Fitzgibbon (recte Fitzgerald), was actually their son ; Matthew’s father, Teig {vide infra), is omitted bv Burke altogether.