National Museum of Nuclear Science & History
Paul Walp worked for the United States Engineer District Office.
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.
L. Krug worked in the Instrument Section at the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.
Grace Thompson was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.