National Museum of Nuclear Science & History
Attended the City College of New York.
Williams Helps worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Brown worked for Stone and Webster Engineering Corporation.
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.
R. B. Smith worked for Clinton Laboratories at the X-10 Reactor.