National Museum of Nuclear Science & History
Carl Martin worked for the Roane-Anderson Company.
Frank Mason worked for the United States Engineer District Office.
Homer W. Ibser was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Leon Horton served in the 393rd Bombardment Squadron.
Kreitzberger worked in the 200 East Area at Hanford during the Manhattan Project.
