National Museum of Nuclear Science & History
Hayes worked at the 300 Area at Hanford during the Manhattan Project.
Arnold E. Sleipnes served as a techical sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Top Secret.
Robert O. Nohr was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
