National Museum of Nuclear Science & History
Simeon T. Cantril (1908-1959) was an American physician. He was born on February 17, 1908 in Hyrum, Utah.
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.
Pef worked for Stone and Webster Engineering Corporation.