National Museum of Nuclear Science & History
W. C. Grube worked for the Tennessee Eastman Corporation at the Y-12 Plant.
D. M. Black worked for Clinton Laboratories at the X-10 Reactor.
E. H. Gray worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Jack Hefner joined the Manhattan Project at Oak Ridge in 1943. Hefner was a reactor engineer and helped supervise the construction of the X-10 Graphite Reactor.
