National Museum of Nuclear Science & History
Clark worked in the United States Engineer District Office.
Hope Sloan was 25 in 1944, a dark-haired WAC corporal and secretary in military intelligence. In July, she joined the construction camp's morale-building effort by entering a beauty contest, part of an "exposition "promoting safety on and off the job.
Major Frank Salfingere served in the Army at Los Alamos during the Manhattan Project.
