National Museum of Nuclear Science & History
J. A. Armitage worked for the Union Carbide & Carbon Corporation.
Clarkson worked in the United States Engineer District Office.
Kistler worked in the 200 West Area at Hanford during the Manhattan Project.
Hannibal Fraga was an engineer. He joined the Manhattan Project in the fall of 1944. He worked in the inspection department at Los Alamos.