29 April 1919
15 November 1994
William Mahony, Bishop of Roman Catholic Diocese of Ilorin, 29 April 1919 – 15 November 1994.
The son of Mick and Mary Mahony of Derrybrien, Slieve Aughty, Mahony had two sisters and three brothers. His father, grandfather and two of his brothers were blacksmiths, a motif he incorporated into his coat of arms as a bishop.
Mahony was at the Gort sheep fair when he heard the call of God to become a priest, joining the Society of African Missions in 1936. He studied in Ballinafad, Cork, Galway, Newry and London.
In 1948 he was assigned to what would become the Archdiocese of Kaduna in northern Nigeria, teaching there till 1960. In the latter year, he was appointed Prefect Apostolic of Illorin, a province of more than thirty thousand square miles and a population of about one million. He was ordained Bishop of Ilorin on 1 August 1969 in Kampala, Uganda, by the pope.