National Museum of Nuclear Science & History
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.
Melvin R. Ludwig served in the 1st Ordnance Squadron.
B. H. Ronfeld served in the 509th Headquarters.
