National Museum of Nuclear Science & History
J. D. Brown worked for the Watson-Flagg Engineering Company.
Walter Treibel was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Fred Oetzman worked for the Tennessee Eastman Corporation at the Y-12 Plant.
James R. Chapman was an engineer working for Stone & Webster when he was recruited to work on the Manhattan Project.
