National Museum of Nuclear Science & History
William E. Adams was a staff worker at Los Alamos during the Manhattan Project.
Joseph H. Madden served in the 603rd Air Engineering Squadron.
Helen R. Hughes was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Karl R. Fischer served in the 393rd Bombardment Squadron.
R. F. Ridgeway worked for the Roane-Anderson Company.
