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.
Leamon Babb was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Betty Gaevada was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.