National Museum of Nuclear Science & History
M. L. Thigpen worked for Clinton Laboratories at the X-10 Reactor.
James E. Grady served in the 1st Ordnance Squadron.
Andrew Welch was a janitor at the Chicago Met Lab during the Manhattan Project.
Part of the Special Engineer Detachment (SED), Donald C. Harms was first sent to Oak Ridge, Tennessee, to work on the Manhattan Project.
