National Museum of Nuclear Science & History
Raymond C. Grills is an American physical chemist who worked at the University of Chicago’s Metallurgical Laboratory and at Hanford during the Manhattan Project.
Arthur Watmough was an electrical engineer working for the DuPont Chamberworks Company in New Jersey from 1941 to 1947.
John Davis worked for the J.A. Jones Construction Company.
Burghardt worked in the United States Engineer District Office.