National Museum of Nuclear Science & History
Al Zelver is an author and former Army intelligence officer who observed the wreckage of Hiroshima after the bombing and spent a year in Japan after the surrender.
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.
C. C. Clark served in the 390th Air Service Group.