National Museum of Nuclear Science & History
Walter Treibel was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Robert Cantrell joined the Manhattan Project in 1943 and worked as an architect for Dr. Walter Zinn’s design group at the University of Chicago.
Gritten worked in the United States Engineer District Office.
Edward B. Doocy worked for the Watson-Flagg Engineering Company.