[3] Garrett attended Christ's College, Cambridge and trained for the ministry at Ridley Hall.
[5] He then served his title (curacy) at St Mary, Stoke Newington.
He spent 34 years serving with the Church Mission Society; a theological educator, he was Vice-Principal of Tirumaraiyur, 1946–1963.
He was also an academic in western Africa, holding a lectureship at the University of Nigeria.
[1] Resigning his See in 1974, he returned to England to serve as Rector of Hallaton, Assistant Bishop of Leicester (from 1975) and an honorary canon of the cathedral.