National Museum of Nuclear Science & History
Greenhalgh worked in the United States Engineer District Office.
Myrtle E. Karcher was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Granville K. Hartley served in the 1027th Air Material Squadron.
A. S. Hoke worked for the Roane-Anderson Company.
Bernard F. Erlanger was a technical adviser on the Manhattan Project who worked at Uravan, CO and at Los Alamos.
