National Museum of Nuclear Science & History
J. S. Gehrken served in the 390th Air Service Group.
Chester J. Krajewski 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.
John Venerable was a guard at the Chicago Met Lab during the Manhattan Project.
Mangold worked in the 200 West Area at Hanford during the Manhattan Project.