National Museum of Nuclear Science & History
MacDonald was a member of the Instrument Section at the University of Chicago’s Metallurgical Laboratory.
John E. Christensen served in the 1027th Air Material Squadron.
Vera Williams was in charge of the housing office at Los Alamos during the Manhattan Project. The wife of physicist John Williams, she also helped organize a maid service to help with housework and childcare.
Richard Parse worked for the Tennessee Eastman Corporation at the Y-12 Plant.