He entered St Patrick's College, Maynooth in September 1932 where he took a first class Honours degree in English in 1935 before embarking on theological studies.

[2] In April 1954 he was chosen to preach (in Irish) at the first Mass celebrated in Cormac's Chapel on the Rock of Cashel since the Reformation.

Dr Morris attended the Second Vatican Council, where he became familiar with the Archbishop of Kracow, and future pope Karol Wojtyla.

He was the only Irish member of the Pontifical Commission on Birth Control that preceded Humane Vitae where predictably he voted against any change.

[4] During his period as archbishop he was responsible for the restoration of Holy Cross Abbey where he continued to work as a priest after retirement.