National Museum of Nuclear Science & History
H. F. Gibbs worked for the A. S. Schulman Electric Company.
John Raper worked for Clinton Laboratories at the X-10 Reactor.
Jack Mullins worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Arnold joined the Manhattan Project in 1943 when the MED tasked his employer, the Kellogg Corporation, with developing a special barrier for the gaseous diffusion plant in Oak Ridge.
