 Carnew Castle was re-roofed and modernised for the arrival as rector in 1813 of a brother in law of Earl Fitzwilliam, Rev.Richard Ponsonby (later Bishop of Derry).His successor, Revd Henry Moore, who built the high castle wall, strongly opposed Earl Fitzwilliam and his agent Bob Challoner's efforts to provide an interdenominational school (now Carnew Enterprise Centre) as a means of healing old wounds.