National Museum of Nuclear Science & History
H. R. Grady worked for the Tennessee Eastman Corporation at the Y-12 Plant.
N.F. Bowman was a consultant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
Irl Schoonover was a staff worker at Los Alamos during the Manhattan Project.
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.
