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.
Harold H. Richardson served in the 1027th Air Material Squadron.
Thomas Raysor worked for the United States Engineer District Office.
Jerome Otto Ackerman was a member of the Special Engineer Detachment who served as a group leader at Los Alamos during the Manhattan Project.
