National Museum of Nuclear Science & History
Ellen Watts (1921-2008) was a technician in the Metal Production Group of the Chemistry Division at the Chicago Met Lab during the Manhattan Project.
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.
A. P. Schreiber worked for the United States Engineer District Office.