National Museum of Nuclear Science & History
George L. Arnold served in the 393rd Bombardment Squadron.
Osterloh worked in the 100 F Area at Hanford during the Manhattan Project.
Colonel Arthur “Pete” V. Peterson was the Army’s area engineer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Charles Levy was a first lieutenant in the 393rd Bombardment Squadron of the 509th Composite Group. He trained in Wendover, Utah, before leaving for Tinian Island.