O’Hara was born on 6 September 1843 into an ecclesiastical family: his father was for many years Rector of Coleraine, a post he himself was to hold from 1869 to 1894. Educated at Leicester Collegiate School and Trinity College, Dublin, he was ordained in 1867. While based in Coleraine, he was from 1884 to 1898 Chancellor of Connor Cathedral. In 1894 he was appointed Vicar of Belfast, from 1897 he was also a Canon of St Patrick's Cathedral, Dublin, and in 1899 he became the first dean) of Belfast. In a meeting of the Bench of Bishops of the Church of Ireland on 6 February 1900, he was elected Bishop of Cashel, Emly, Waterford and Lismore, and he was consecrated bishop by the Archbishop of Dublin at St Patrick's Cathedral, Dublin on 24 February 1900. He served as such until his retirement in 1919.
- National Library of Ireland
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|Church of Ireland titles|
|Dean of Belfast
Charles Frederick D'Arcy
Maurice FitzGerald Day
|Bishop of Cashel, Emly, Waterford and Lismore