National Museum of Nuclear Science & History
Barr worked for Stone and Webster Engineering Corporation.
William MacLeod worked for the United States Engineer District Office.
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.
Thomas Guilfoyle was a member of the Military Police at the University of Chicago's Metallurgical Lab from 1943 to 1945.
Frederick H. Zimmerli served in Project Alberta.
