National Museum of Nuclear Science & History
W. H. Grahm worked for the Tennessee Eastman Corporation at the Y-12 Plant.
James Roberts was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Ike Smith worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.