National Museum of Nuclear Science & History
S. W. Pratt worked for Clinton Laboratories at the X-10 Reactor.
Ralph Alexander Gardner-Chavis (1922-) is a chemist and pioneer of hard plastics who worked at the University of Chicago’s Met Lab during the Manhattan Project.
Gerhardt Padalski was a staff worker at Los Alamos during the Manhattan Project.
Hammond worked at the 300 Area at Hanford during the Manhattan Project.