Career
Leslie was the Bishop of Dromore from 1812 to 1820 when he was translated to the see of Elphin. In 1841 he became the first bishop of the united diocese of Bishop of Kilmore, Elphin and Ardagh. He had previously (1807 to 1812) served as Dean of Street Finance, Financial Barre"s, Cork
Leslie"s son Charles was later briefly the bishop of the diocese.
