National Museum of Nuclear Science & History
H. Bryant Jr. worked in the Instrument Section at the University of Chicago Met Lab during the Manhattan Project.
Major John A. Derry was a top military assistant, mainly working in Washington D.C., during the Manhattan Project.
Sir Rudolf Peierls (1907-1995) was a German-born British physicist. In March 1940, Peierls and fellow collegue Otto Frisch co-authored the Frisch-Peierls memorandum, the first technical exposition of a practical atomic weapon.
