National Museum of Nuclear Science & History
Halbrook worked in the United States Engineer District Office.
A. J. LaBlanc, Jr. worked for the United States Engineer District Office.
Minnie M. Daniels was a laboratory technician and assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Johnson worked at the 100-F Area at Hanford during the Manhattan Project.
George Maronde was a security guard at the University of Chicago Metallurgical Lab. He stood guard outside Stagg Field when Chicago Pile-1 went critical on December 2, 1942.
