National Museum of Nuclear Science & History
Roth worked at the 200 East Area at Hanford during the Manhattan Project.
Dee McCullough began working as an instrument technician at Hanford in early 1944. As a former sound engineer, McCullough was tasked with installing nuclear safety monitors on the reactors at Hanford.
Lyndon Richards served in the First Ordnance Squadron.
R. W. Llewellyn worked for the United States Engineer District Office.