National Museum of Nuclear Science & History
Delbert Ball was a procurement officer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
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.
Charles Quincy worked for the Tennessee Eastman Corporation at the Y-12 Plant.
R. A. Smith worked for the H. K. Ferguson Company.
