National Museum of Nuclear Science & History
John Smith was a guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
George Graves was a technical advisor at Hanford, and so famous there that he inspired a poem: "We'd called up a tight design/ Hewn strictly to the longhairs' line.
Mary Argo was a physicist at Los Alamos during the Manhattan Project. She and her husband, physicist Harold Argo, were students of Edward Teller.