Sir James Chadwick (20 October 1891 – 24 July 1974) was an English Nobel laureate in physics awarded for his discovery of the neutron. Chadwick studied at the University of Manchester and the University of Cambridge. He was one of the primary British scientists who worked in the Manhattan Project in the United States during World War II. He was knighted in 1945 for achievements in physics.
1.) Andrew Brown (1997). The neutron and the bomb: a biography of Sir James Chadwick. Oxford University Press. p. 362. ISBN 9780198539926. "He was a lifelong atheist and felt no need to develop religious faith as he approached the end of his life."