National Museum of Nuclear Science & History
Arthur Sievert worked for Hanley & Company.
Ilse Perlman was a staff worker at Los Alamos during the Manhattan Project.
James C. Hart was a DuPont chemist and member of the health physics group during the Manhattan Project.
John L. Willoughby served as a sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Bockscar.
