National Museum of Nuclear Science & History
N. N. Tracy worked for the J.A. Jones Construction Company.
Kay Manley, Canadian-born, came to the United States in 1933 to study. She and her husband John Manley were at the Manhattan District in Chicago, when her husband was personally called by Leo Szilard and asked to move from the Met Lab to Los Alamos.
Margaret M. Emmerson was a technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
