National Museum of Nuclear Science & History
Clark Royer worked for the United States Engineer District Office.
Andrew Kapral served in the 603rd Air Engineering Squadron.
Sherman Winters was a janitor at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.
Leon D. Smith joined the Manhattan Project in 1944 and was assigned to the 509th Composite Group at Wendover Airfield in Utah.
