National Museum of Nuclear Science & History
Chris Keim worked for the Tennessee Eastman Corporation at the Y-12 Plant.
John Walker served in the army at Los Alamos during the Manhattan Project.
J. F. Morgan worked for the J.A. Jones Construction Company.
Gale Young was a research associate in theoretical studies at the University of Chicago Met Lab. Before joining the Manhattan Project in 1942, Young taught mathematics and physics at Olivet College.