Clement F. Toft

Lucien Nerman

Lucien Nerman was a security guard at 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.

D.D. Sivils

J. P. Valliant

J. P. Valliant worked for the Union Carbide & Carbon Corporation.