National Museum of Nuclear Science & History
Marle Velde worked for the Kellex Corporation at the K-25 Plant.
Marion Mandel was a laboratory technician in the Health Division at the University of Chicago Met Lab.
Eugene S. Grennan served as a 2nd lieutenant in the 509th Composite Group. He was the flight engineer on the Straight Flush during the Hiroshima mission.
Herbert Etzler worked for the Roane-Anderson Company.
Attended Case Western Reserve University.
