National Museum of Nuclear Science & History
W. A. Gracey worked for the Roane-Anderson Company.
M. E. Gregson worked for the Roane-Anderson Company.
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.
T. M. Yakimchick worked for the United States Engineer District Office.
