Born on 30 December 1878 the eldest child of George Gray, bookkeeper, and Mary McKinley, his wife. He was educated at John Street School, Bridgeton, Glasgow and at Glasgow University, where he qualified in 1904 and served as demonstrator of anatomy. Gray entered the West African medical service and served for two terms as a government medical officer in Southern Nigeria. He then settled in private practice at Lagos, at that time the capital of Nigeria. He built the Creek Hospital, which was later taken over by the Government, and also took charge of the African Hospital, and organized the native medical school at Yaba outside Lagos. His partner from 1919, A B Aitken, was drowned while surf-bathing at Lagos in 1935. Both partners were official consultants under Government. Gray retired and left Nigeria in 1939. He settled at Saffron Meadows, Penryn, Cornwall, but died in London on 16 June 1950. He had married in 1907 Rachel Galbraith; there were no children. Gray was a cultivated and scholarly man, and an excellent surgeon and administrator. He presented a number of valuable books to the College Library, including a copy of Andreas Vesalius *De humani corporis Fabrica*, 1543. He was active in freemasonry and rose to be Grand Master of Nigeria. Publications:- Multiple renal arteries. *Anatomischer Anzeiger*, 1906, 29, 266. Yellow fever in Lagos during 1925, with A B Aitken and others. *Trans Roy Soc Trop Med* 1927, 20, 166.