National Museum of Nuclear Science & History
Karl R. Fischer served in the 393rd Bombardment Squadron.
Bradley Marmon is a Manhattan Project veteran. Marmon was born in New York on November 15, 1925.
Gerald F. Smith served in the Special Engineer Detachment at Los Alamos, NM during the Manhattan Project.
H. B. Smith worked for the United States Engineer District Office.
Calvin B. Popwell served as a corporal 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.