National Museum of Nuclear Science & History
Stewart Dismuke worked for the Tennessee Eastman Corporation at the Y-12 Plant.
Enrique Reyes worked for the Roane-Anderson Company.
Daniel J. Keefe was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) 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.