National Museum of Nuclear Science & History
Donald Engelkemeior was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
H. E. Reuben worked for the J.A. Jones Construction Company.
John D. Hopper served as a civilian in Project Alberta.
John M. “Jack” Hubbard was an American meteorologist. Considered one of the brightest meteorologists in the world by the early 1940s, Hubbard was a former student of the renowned meteorologist Irving Crick.
