National Museum of Nuclear Science & History
Twohey worked for Stone and Webster Engineering Corporation.
W. W. Oshsner worked for the Roane-Anderson Company.
Thomas R. Williams was a laborer at the University of Chicago’s Metallurgical Lab (“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.
