National Museum of Nuclear Science & History
L. D. Percival King was an American physicist. After receiving his Ph.D. in Physics from the University of Chicago, King became an instructor in the Physics Department at Purdue University.
Ralph Steinhardt was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Paul Petretzky worked for the Tennessee Eastman Corporation at the Y-12 Plant.
