W. S. Hall

H. A. McFadden

H. A. McFadden worked for the Roane-Anderson Company.

Harvey B. Lemon

Harvey B. Lemon (1885-1965) was a consultant to the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Anton Kegl

Anton Kegl was a janitor at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Gerald Burley