National Museum of Nuclear Science & History
Berenski worked in the United States Engineer District.
George I. Schreffer served as a corporal in the 393rd Bombardment Squadron. He was a member of the ground crew on the B-29 Jabit III.
Julius “Osty” Ostspowicz was a glassblower in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.