Born on 26 October 1876 at King's Sutton, Northamptonshire, where his father was in general practice, he was the second child and first son of George Waugh, MB, CM 1869, and Annie, his wife, daughter of Thomas Minks of York. He was educated at Epsom College, to which he was later a generous benefact

Born on 2 September 1874, the second child of Joseph Addison and Marianne Brown his wife. He was educated at Marlborough College and at University College, London. After serving as house surgeon to (Sir) Victor Horsley at University College Hospital, where he formed a friendship with George Waugh, q