National Museum of Nuclear Science & History
William P. Evans served in the 1st Ordnance Squadron.
Roger Hildebrand is an American physicist and Manhattan Project veteran. He is the S.K. Allison Distinguished Service Professor, Emeritus, at the University of Chicago and is affiliated with the Enrico Fermi Institute.
Joseph Papalia is an official historian of the 509th Composite Group, the US Army Air Force unit created specifically for dropping atomic bombs during World War II.
