National Museum of Nuclear Science & History
McCampbell worked for Stone and Webster Engineering Corporation.
Hinginio A. Baca served as a private first class in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned to the B-29 Big Stink, and he and his crew were later reassigned to Luke the Spook.
Bradley Marmon is a Manhattan Project veteran. Marmon was born in New York on November 15, 1925.
Attended the University of Akron.
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.