National Museum of Nuclear Science & History
Carroll Villincs was a guard at the Chicago Met Lab during the Manhattan Project.
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Don Simpson worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Hardy Whitehead worked for the Edenfield Electric Company.
James Forde joined the Manhattan Project in 1944 when he was hired by the Union Carbide and Carbon Company to work at the Nash Garage Building at Columbia University, where scientists worked on developing the gaseous diffusion process.