Sir William Lawrence Bragg, CH, OBE, MC, FRS was an Australian-born British physicist and X-ray crystallographer, discoverer of Bragg's law of X-ray diffraction, which is basic for the determination of crystal structure. Wikipedia
Born: March 31, 1890, Adelaide, Australia
Died: July 1, 1971 (age 81 years), Waldringfield, United Kingdom
Parents: William Henry Bragg and Gwendoline Todd
Education: St Peter’s College (1901–1904), University of Cambridge, The University of Adelaide, and more
Children: Stephen Bragg and Patience Mary Bragg
Grandchildren: Alice Thomson and Hugh Thomson
Spouse: Alice Grace Jenny Hopkinson (m. 1921–1971)