National Museum of Nuclear Science & History
Henry Ward worked for the United States Engineer District Office.
Delbert Johnson was a mechanical engineer with the Special Engineer Detachment (SED) at Los Alamos. Johnson worked under 1st Lieutenant Howard C.
Hugh Adams worked for the Tennessee Eastman Corporation at the Y-12 Plant.
W. H. Griffin worked for the H. K. Ferguson Company.
August “Gus” Knuth was a millwright and carpenter who helped construct Chicago Pile-1. He was present on December 2, 1942 when the pile went critical in the first self-sustaining chain reaction in history.
