National Museum of Nuclear Science & History
Dorothy C. Johnson was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Raycliffe C. Davis was a graduate of Central College in Pella, Iowa. He joined the Army while living in Cedar Rapids, IA, and was assigned with Special Engineering Detachment in Oak Ridge, TN in April 1944.
John C. Lydon, Jr. served in the 603rd Air Engineering Squadron.