National Museum of Nuclear Science & History
Conrad Roescke was a staff worker at Los Alamos during the Manhattan Project.
Walter Treibel was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Robert Mackenzie “Bob” Underhill (1893-1988) was a finance officer for the University of California during the Manhattan Project.
Hayes worked in the United States Engineer District Office.
