National Museum of Nuclear Science & History
Fred Bader worked for the J.A. Jones Construction Company.
D. Iosco served in the 390th Air Service Group.
Willingham worked at the 200 West Area at Hanford during the Manhattan Project.
Jas Major worked for the Kellex Corporation at the K-25 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.