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.
Henry McDonald, Jr. worked for the United States Engineer District Office.
George Schaeffer was a staff worker at Los Alamos during the Manhattan Project.
August Balestri was a laboratory assistant at the Metallurgical Laboratory in Chicago during the Manhattan Project.
