National Museum of Nuclear Science & History
Crowley worked at the 100-D Area at Hanford during the Manhattan Project.
Oscar J. Thigpen served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
Paul R. Pettit served in the 390th Air Service Group.
Norene Mann was a secretary at the University of Chicago Met Lab. She worked for Nobel laureate James Franck, but often also acted as a secretary for Leo Szilard.