National Museum of Nuclear Science & History
John Luttrell worked for the United States Engineer District Office.
John Klein was a member of the Special Engineering Detachment. He worked at the Metallurgical Lab at the University of Chicago and at Los Alamos.
John Fletcher worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. M. Dallam worked at the 100-D Area at Hanford during the Manhattan Project.
