National Museum of Nuclear Science & History
Hayes worked in the United States Engineer District Office.
James Vella served in the 603rd Air Engineering Squadron.
Ralph Steinhardt was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Raymond. J. Bosnak was an electrical engineer at Chicago when he enlisted in the Army. He was assigned to the Special Engineer Detachment at Los Alamos.
