National Museum of Nuclear Science & History
A. S. Preston worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Calvin S. Shepherd worked on the Manhattan Project at Los Alamos, NM and the Trinity Site.
Dellis Caho was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
R. S. Amrien worked for the Union Carbide & Carbon Corporation.