National Museum of Nuclear Science & History
John W. Gofman was an American scientist who helped develop plutonium separation techniques 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.
Mary Alice Nachtrieb was a chemist who worked at Los Alamos during the Manhattan Project. Her speciality was in plutonium chemitsry.