National Museum of Nuclear Science & History
Sidney Williams was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Morris Jackson worked for the United States Engineer District Office.
V. N. Hacker worked for the J.A. Jones Construction Company.
Russell Angeli served in the 320th Troop Carrier Squadron.
William Yadasz was a staff worker at Los Alamos during the Manhattan Project.