National Museum of Nuclear Science & History
J. R. Siebert worked for the Comstock-Bryant Electric Company.
Bishop worked at the 300 Area at Hanford during the Manhattan Project.
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.
Charles W. Hagen was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
