National Museum of Nuclear Science & History
O. P. Shoop worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Gilbert Plass was a Canadian physicist. Plass was born in 1922 in Toronto. He received a B.S. in physics from Harvard University before being hired to work on the Manhattan Project at the Chicago Met Lab, where he worked as an associate physicist.
W. C. Keettel worked for the United States Engineer District Office.
