National Museum of Nuclear Science & History
J. P. Hogan worked for Hanley & Company.
Mary Fair worked as a lab assistant at the Metallurgical Lab at the University of Chicago. She was not sure of the purpose of her work, but often used radiation detecting devices in the experiments.
Elbert Christman Owens served as a master sergeant in the 393rd Bombardment Squadron. He was a member of the ground crew regularly assigned first to Luke the Spook and later to Big Stink.