National Museum of Nuclear Science & History
B. H. Hagedorn worked for the Edenfield Electric Company.
W. H. Zimmer worked for the United States Engineer District Office.
Elizabeth Howlett was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Lieutenant General Leslie Groves (1896-1970) was a United States Army Corps of Engineers officer and director of the Manhattan Project.