National Museum of Nuclear Science & History
George I. Ray worked for the G.G. Ray Company.
Delbert Johnson was a mechanical engineer with the Special Engineer Detachment (SED) at Los Alamos. Johnson worked under 1st Lieutenant Howard C.
Dave Weatherly worked for the Kellex Corporation at the K-25 Plant.
Pearl Olsen worked for the United States Engineer District Office.
Ambroso Hoelscher was a laboratory assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
