National Museum of Nuclear Science & History
Ed Helfenberger worked for the Roane-Anderson Company.
Leon C. Troutner served in the 603rd Air Engineering Squadron.
Esequiel “Zeke” Salazar began working at Los Alamos during the Manhattan Project. His first jobs were as a carpenter and a rod-man assisting surveyors for the Robert E.
O. F. Glover worked for the Edenfield Electric Company.
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.