National Museum of Nuclear Science & History
T. J. O’Donnell was the Shop Chief at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Olga Nelson was a staff worker at Los Alamos during the Manhattan Project.
J. R. Maddy worked for the United States Engineer District Office.
William Sturm was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
