National Museum of Nuclear Science & History
Hymer Friedell was the deputy medical director of the Manhattan Engineer District at Oak Ridge. He worked closely with Robert Stone and Stafford Warren in studying the effects of radiation on the human body.
John Walker served in the army at Los Alamos during the Manhattan Project.
Richard Black served in the 1395th Military Police Company, Aviation.
W. R. McCauley, Jr. worked for the United States Engineer District Office.