National Museum of Nuclear Science & History
Crawford Greenewalt (1902-1993) was an American chemical engineer. He was one of the managers of the Manhattan Project for DuPont.
Paul J. Esterline was an engineer. He attended Ohio State University for two years, and then attended the Chicago Technical Institute in the late 1920s, learned engineering drafting there.
Vincent Ogorman was a staff worker at Los Alamos during the Manhattan Project.
William Ladniak worked for Clinton Laboratories at the X-10 Reactor.