National Museum of Nuclear Science & History
Thomas Guilfoyle was a member of the Military Police at the University of Chicago's Metallurgical Lab from 1943 to 1945.
Halpern worked in the United States Engineer District Office.
Harrie Massey (1908-1983) was an Australian physicist. A brilliant student of physics, Massey arrived from his native Australia at Cambridge College in the United Kingdom on an academic scholarship.
