Born in London on 27 April 1887, second son of John McNair of Paisley, an underwriter at Lloyds, he was educated at Aldenham School, Emmanuel College, Cambridge where he took second-class honours in Natural Sciences, and at Guy's Hospital. During the first world war he served with the Royal Navy and

Born at Thamesville, Ontario, Canada on 21 February 1880 he was educated at the American Medical Missionary College, Battle Creek, Michigan and at Chicago. He qualified MD 1907 from the Jefferson Medical College of Philadelphia. Coming to London he took the Conjoint qualification in 1911 and the Fel