National Museum of Nuclear Science & History
C. Lawrence worked for the J.A. Jones Construction Company.
John M. Sprecher was a chemical engineer. During the Manhattan Project, he worked for DuPont in Wilmington, DE.
Hugh T. Richards was an American physicist. He worked on neutron measurements for the atomic bombs at Los Alamos during the Manhattan Project.
Julian Schwinger (1918-1994) was an American theoretical physicist and the 1965 Nobel Prize winner. During the summer of 1943, Schwinger briefly worked on the development of the atomic bomb at the University of Chicago’s Metallurgical Laboratory.