National Museum of Nuclear Science & History
Flonnie Sloan worked in Building 9201 in the Y-12 plant at Oak Ridge, Tennessee from 1943 to 1945.
Edward Wilder, Jr. worked for the United States Engineer District Office.
C. M. Hart worked for the Harrison Construction Company.
Roscoe Charles Wilson was a United States Army Air Forces Officer. At the rank of Colonel he was the overall Project Office to the Manhattan Engineering District from June 1943 to December 1944.