National Museum of Nuclear Science & History
Hayes worked in the United States Engineer District Office.
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Frank Osvath was a staff worker at Los Alamos during the Manhattan Project.
Ralph Bloomfield served in the 603rd Air Engineering Squadron.
John Cutshaw worked for the Oak Ridge Recreation and Welfare Association.
