National Museum of Nuclear Science & History
R. D. Cantrell worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Francis worked in the United States Engineer District Office.
Waldemar Nielsen (1917-2005) worked on the postwar surveys of Hiroshima and Nagasaki in Japan. Nielsen was born in Greensburg, Pennsylvania.
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.
