National Museum of Nuclear Science & History
Paul R. O’Connor was a junior chemist at the University of Chicago Met Lab during the Manhattan Project.
Fred E. Bruenger served in the 320th Troop Carrier Squadron.
Helen E. Krinek was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Arthur F. Dyer served in the 393rd Bombardment Squadron.
