National Museum of Nuclear Science & History
George A. Ullrich was a chemist who performed analytical research at Clinton Laboratories in Oak Ridge, TN during the Manhattan Project.
Arnold graduated from Northwestern University in 1941 with a B.S. degree in Biology and a minor in Chemistry.
Captain William Downey served as the Protestant chaplain for the 509th Composite Group and led the crew of the Enola Gay in prayer before they departed for Hiroshima.
