National Museum of Nuclear Science & History
Creedon worked for Stone and Webster Engineering Corporation.
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.
George Waskey worked for the Roane-Anderson Company.
Frederic Showalter served in the First Ordnance Squadron.