National Museum of Nuclear Science & History
Melvin A. Miller was a draftsman at the University of Chicago Met Lab. In 1946, he sketched two famous drawings of Chicago Pile-1 based on the descriptions of scientists who were present when it went critical.
Jas Clayton worked for Clinton Laboratories at the X-10 Reactor.
Roderick E. Legg served as a sergeant in the 393rd Bombardment Squadron. He was regularly assigned to the B-29 Top Secret.