National Museum of Nuclear Science & History
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.
Magdaline Penny worked for the United States Engineer District Office.
Arthur S. Olson was a laborer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Merrill worked in the 300 Area at Hanford during the Manhattan Project.