National Museum of Nuclear Science & History
Fry worked in the United States Engineer District Office.
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.
Mathias A. Klinger was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Matson worked in the 100 B Area at Hanford during the Manhattan Project.