National Museum of Nuclear Science & History
W. G. Chmielewski was a carpenter at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
S. M. Kelly worked for the Roane-Anderson Company.
George Briggs was only 20 years old when he began working with the Special Engineer Detachment at Los Alamos.
John O. Williams served in the 603rd Air Engineering Squadron.
