John A. Glass

L.W. Hamblin

Hamblin worked in the United States Engineer District Office.

Lucy Mabins

Lucy Mabins was a laboratory assistant in the Chemistry Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Winston Grice

Winston Grice was a millwright at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

James B. Williams