William Lawrence Bragg
Sir William Lawrence Bragg CH, OBE, MC, FRS (31 March 1890 – 1 July 1971) was an Australian-born British physicist and X-ray crystallographer. Bragg was knighted in 1941. As of 2016, Lawrence Bragg is the youngest ever Nobel Laureate in physics, having received the award at the age of 25 years. Bragg was the director of the Cavendish Laboratory, Cambridge, when the discovery of the structure of DNA was reported by James D. Watson and Francis Crick in February 1953. During both wars he worked on sound ranging methods for locating enemy guns. For his work during WWI he was awarded the Military Cross and appointed Officer of the Order of the British Empire. He was also Mentioned in Despatches on 16 June 1916, 4 January 1917 and 7 July 1919.