National Museum of Nuclear Science & History
Harlan Tyne worked for the United States Engineer District Office.
Marion Mandel was a laboratory technician in the Health Division at the University of Chicago Met Lab.
E. D. Briley worked for the Midwest Piping and Supply Company.
Robert H. Dunlap was the director of Group CM-1 in the Chemistry and Metallurgy Division at Los Alamos during the Manhattan Project.
A. V. Peterson worked for the United States Engineer District Office.