National Museum of Nuclear Science & History
Charles Swartout worked for the United States Engineer District Office.
John Black worked for the J.A. Jones Construction Company.
Lionel Ames is an Army and Manhattan Project veteran, who worked at Los Alamos. His is also the brother of Maurice Shapiro, who was a Los Alamos scientist.
Roger Hildebrand is an American physicist and Manhattan Project veteran. He is the S.K. Allison Distinguished Service Professor, Emeritus, at the University of Chicago and is affiliated with the Enrico Fermi Institute.