National Museum of Nuclear Science & History
Elmira Overton worked for the United States Engineer District Office.
John Wickersham was a military policeman and guard at Los Alamos during the Manhattan Project. His duties included patrolling the perimeter of the site on horseback.
Groom worked at the 300 Area at Hanford during the Manhattan Project.
Melba (Johnston) Robson was a biomedical technician at the Metallurgical Laboratory in Chicago during the Manhattan Project.
