National Museum of Nuclear Science & History
LeRoy Grigsby worked for the Roane-Anderson Company.
Warren Sheehan joined Mound Laboratory in April 1956. He spent the first half of his career in health physics, or radiation safety, where he developed a new methodology for determining the amount of plutonium in urine.
Lloyd J. Williams was a staff worker at Los Alamos during the Manhattan Project.
Robert P. Matthews worked as a member of Project Alberta, the team that transported and assembled the Fat Man and Little Boy atomic bombs.
