National Museum of Nuclear Science & History
Elmira Overton worked for the United States Engineer District Office.
Frederick E. Brown served as a sergeant in the 393rd Bombardment Squadron. He was the assistant engineer/scanner regularly assigned to the B-29 Some Punkins.
John Davis 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.