National Museum of Nuclear Science & History
G. M. Shifley worked for the J.A. Jones Construction Company.
Thomas V. Moore was the chief engineer of the University of Chicago Met Lab and oversaw the construction of Chicago Pile-1.
Otto Frisch (1904-1979) was an Austrian-born physicist. Frisch joined the Manhattan Project in 1943, but his most important contribution to the project came in 1940 in England.