National Museum of Nuclear Science & History
Spear worked at the 200 East Area at Hanford during the Manhattan Project.
Gordon Smith was a chemical engineer in the 9812th Technical Service Unit of the U. S. Army Corps of Engineers Special Engineer Detacment at the Clinton Engineer Works in Oak Ridge.
Shirley Padgett worked for the United States Engineer District Office.
Philip G. Koontz was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.