National Museum of Nuclear Science & History
MacDonald worked for Stone and Webster Engineering Corporation.
William Hester worked for the Roane-Anderson Company.
Irma E. Shuler was a personnel office manager at Los Alamos during the Manhattan Project. She was also the second wife of physical chemist and Los Alamos scientist George Kistiakowsky.
L. Krug worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.