National Museum of Nuclear Science & History
R. F. Perkins worked for the Union Carbide & Carbon Corporation.
J. J. Gallagher worked for Clinton Laboratories at the X-10 Reactor.
Peter Watkins was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
W. T. Hanson, Sr. worked for the Tennessee Eastman Corporation at the Y-12 Plant.