National Museum of Nuclear Science & History
D.C. Stewart was a Staff Sergeant in the Special Engineer Detachment at the Metallurgical Laboratory in Chicago during the Manhattan Project.
E. H. Halbrook worked for the J.A. Jones Construction Company.
Frances Zollner worked as a purchasing agent for the Manhattan Project at the University of Chicago. At Chicago, Zollner would meet many of the scientists who were improving various scientific parts and procedures throughout the duration of Manhattan Project.
