National Museum of Nuclear Science & History
A member of the Special Engineer Detachment of the U.S. Army, Ray Stein participated in the Manhattan Project at Oak Ridge and was assigned to the Y-12 Plant.
Lewis W. McDuffie served in the 603rd Air Engineering Squadron.
John Riddle was a research assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Joseph Sedor served in the 390th Air Service Group.
