National Museum of Nuclear Science & History
Harold E. Timberly served in the 603rd Air Engineering Squadron.
Frank E. Sutton 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 Top Secret.
Helena Calloway was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.
Antilla worked in the United States Engineer District Office.
