Tom N. LoPresto

T. J. O’Donnell

T. J. O’Donnell was the Shop Chief at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Basil Decker

Kenneth E. Zimmerman

Kenneth Zimmerman worked for the United States Engineer District Office.

Margaret Strombeck

Margaret Strombeck was a swtichboard operator at the Metallurgical Laboratory in Chicago during the Manhattan Project.