National Museum of Nuclear Science & History
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.
John Klein was a member of the Special Engineering Detachment. He worked at the Metallurgical Lab at the University of Chicago and at Los Alamos.