National Museum of Nuclear Science & History
Block worked in the United States Engineer District Office.
Richard McNamara served as a 2nd lieutenant in the 393rd Bombardment Squadron of the 509th Composite Group.
Barton B. Crespin 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 Necessary Evil.
John Ruhoff worked for the United States Engineer District Office.
