Harry Guy Dain was born at Birmingham on 5 November 1870, and was educated at King Edward's Grammar School, and Josiah Mason's College (the medical department of Queen's College, Birmingham) qualifying with the Conjoint Diploma in 1893, and taking the London MB in 1894. After junior hospital appointments he settled down in general practice in Selly Oak. The introduction of National Health Insurance brought about his entry into medical politics, and his clarity of thought and expression coupled with his natural charm of manner soon distinguished him as the ideal member, and afterwards chairman, first of Insurance Committees and later of the Representation Body and the Council of the British Medical Association. It thus came about that when in 1947 the Council of the Royal College of Surgeons was enlarged by the cooption of representatives of the faculties and of general practice, Guy Dain, who had been elected to the Fellowship in 1945, was the obvious choice to represent general practice, and he remained on the Council till 1952. At the end of his remarkable career which combined in a most unusual way the demands of the practice of medicine and of medical administration and politics he retired in 1960 at the age of 90, and he was knighted in 1961. He was twice married; his first wife died in 1933, and a son of that marriage, Dr Basil Guy Dain practised in Birmingham. Sir Guy died on 26 February 1966.