National Museum of Nuclear Science & History
R. M. Smith worked for the United States Engineer District Office.
Vincent Wright worked for the Edenfield Electric Company.
Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Richard Gaul was fresh out of high school when he arrived in Los Alamos. He was a member of the Provisional Engineer Detachment (PED).