National Museum of Nuclear Science & History
John Owen worked for the Roane-Anderson Company.
Thomas Guilfoyle was a member of the Military Police at the University of Chicago's Metallurgical Lab from 1943 to 1945.
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.
