National Museum of Nuclear Science & History
Hartman worked for Stone and Webster Engineering Corporation.
Robert Serber (1909-1997) was an American physicist. He was recruited by J. Robert Oppenheimer to work on the Manhattan Project.
H. R. Chapman worked for the H. K. Ferguson Company.
George Ponton served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
