Eric Lundeen

James H. Hastings

Jas B. Huff

Jas Huff worked for the United States Engineer District Office.

Frank E. Keene

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

D. J. Kridel

D. J. Kridel worked for the United States Engineer District Office.