National Museum of Nuclear Science & History
J. N. Holt worked for the United States Engineer District Office.
Edward Czuba was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Donald William Kerst is an American physicist known for his development of the betatron in 1940 and the Water Boiler Reactor at Los Alamos during the Manhattan Project.
Marselis Powell worked for the Union Carbide & Carbon Corporation.