National Museum of Nuclear Science & History
H. E. Wentworth worked for the Roane-Anderson Company.
B. O. Yeldell worked for the Edenfield Electric Company.
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.
W. M. Mathis worked for Clinton Laboratories at the X-10 Reactor.
