Born in 1864 he was educated at St Bartholomew's Hospital, where he served as house surgeon. He was resident medical officer at Farringdon General Dispensary, and medical superintendent of the Mildmay Mission Hospital at Bethnal Green. He went to Colombo, Ceylon as a medical missionary about 1901,

Born on 11 June 1867, the second son of the Rev John Temperley Grey and Mary Jane McCorquodale, his wife. He was educated at Bristol Grammar School and Bristol Medical School where he won the Committee's gold medal of the Bristol General Hospital in 1889. He then studied at the University of Durham