C. H. Hemmel, Jr.

Frances R. McSherry

Frances McSherry worked for the United States Engineer District Office.

Francis W. Keene

Francis W. Keene served in the 603rd Air Engineering Squadron.

Ardell E. Croe

Mary M. Fair

Mary Fair worked as a lab assistant at the Metallurgical Lab at the University of Chicago. She was not sure of the purpose of her work, but often used radiation detecting devices in the experiments.