National Museum of Nuclear Science & History
Walter Treibel was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Joseph W. Giroux was a Private First Class in the 1st Ordnance Squadron. Giroux was born in Worthington in the district of Sudbury, Ontario, Canada, on October 24, 1921.
Grafton worked in the United States Engineer District Office.
