National Museum of Nuclear Science & History
W. H. Jennens worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Rachel Gilbreath was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
McCann worked in the 200 East 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 Ball was a security guard at the Metallurgical Laboratory in Chicago during the Manhattan Project.