Born Michael John Carroll, in Newcastle West, County Limerick in 1911, his father was a member of the Royal Irish Constabulary.
in Education), O'Carroll spent three years studying theology at the Dominican University of Fribourg in Switzerland, earning a Doctorate in Divinity.
[1] O'Carroll went back to teach French, Latin, English, History and Religion in Blackrock College.
Michael's older brother, Patrick F. O'Carroll, DD, also became a Holy Ghost priest, serving as Provincial of the order, and also worked as a professor in the United States.
[3] He died on 12 January 2004 after a long illness and was buried in a community grave at Shanganagh Cemetery.