National Museum of Nuclear Science & History
Harry Petcher's flat feet meant he couldn't be drafted, but still had an obligation to work for the war effort.
Margaret Caldes moved to Los Alamos when her husband, William E. Caldes, was recruited to join the project in 1943.
J. R. Thompson worked for the J.A. Jones Construction Company.
Marvin Martin worked for the Tennessee Eastman Corporation at the Y-12 Plant.