[1] He was born in Belfast, and educated by the Christian brothers locally at St. Mary's Grammar School, leaving school at 16 he worked as a clerk, before going to Kimmage Manor, to train as a priest.
He studied philosophy in St. Marys College, and prefected in Blackrock College studying Theology and was ordained a Holy Ghost Father in 1928.
He was sent to East Africa where he taught, holding a number of church positions.
In 1957 he was appointed Bishop of Mombasa and Zanzibar, ordained in Belfast.
Bishop Butler resigned in 1978, and retired to Ireland and stayed in the Sacred Heart Residence of the Little Sisters of the Poor at Sybil Hill, Raheny.