National Museum of Nuclear Science & History
Grafton worked in the United States Engineer District Office.
Andrew Walker was a member of the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.
Hinkson worked at the 300 Area at Hanford during the Manhattan Project.
Spear worked at the 200 East Area at Hanford during the Manhattan Project.
Thornburg worked for Stone and Webster Engineering Corporation.
