National Museum of Nuclear Science & History
Mary Thomas worked for the J.A. Jones Construction Company.
Helen Mannon worked for the Roane-Anderson Company.
Richard Ehrlich worked at Los Alamos in the Theoretical Physics Division, 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.
Ida Wallace was a laboratory assistant in the chemistry division at the Chicago Met Lab during the Manhattan Project.