National Museum of Nuclear Science & History
Joseph H. Heartberg was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
William G. (“Bill”) Hudgins spent most of childhood years in New Mexico. He first heard about a secret wartime laboratory at Los Alamos in 1943, when he was a student at the University of New Mexico.
L. F. Preston worked for the United States Engineer District Office.
