National Museum of Nuclear Science & History
Attended the University of Maryland.
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.
Melvin L. Hogue served in the 1st Ordnance Squadron.
J. A. Speas worked for the J.A. Jones Construction Company.
Margaret Brown was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.