Born on 21 September 1891 the son of J T Riddiough of Bradford, he was educated at Bradford Grammar School and King's College, Cambridge, where he was an exhibitioner. Having obtained second-class honours in the Natural Sciences Tripos in 1912 and in the Mathematical Tripos in 1913, he became a mast

Born 27 July 1891 at Clifton Hill, Maida Vale, London, the third child of Herbert Augustus Oldershaw, solicitor, and his wife *née* Godrich. He was educated at the Brighton Technical College and at University College Hospital. At the Hospital he gained the Bucknill scholarship in 1913, and served as