On 19 January 1974, he was ordained titular Bishop of Árd Carna, and on 24 November 1978, appointed Archbishop of Canberra (and Goulburn).
On 19 January 1974, he was ordained titular Bishop of Árd Carna, and Auxilary Bishop of Sydney. On 24 November 1978, he was appointed Archbishop of Canberra (and Goulburn).