National Museum of Nuclear Science & History
J. Midkiff worked for the Edenfield Electric Company.
Harold Hasenfus was part of the Special Engineer Detachment during the Manhattan Project and worked at the University of Chicago's Metalurgical Laboratory and at the gaseous diffusion plant in Oak Ridge.
Julian Mack was an American physicist. Mack was the leader of Group G-11 (Optics), the photography group, in the Weapons Physics Division at Los Alamos during the Manhattan Project.
