Russell Chadwick

C. C. Sperling

C. C. Sperling worked for the Edenfield Electric Company.

Everett A. Collins

Frank M. Graham

Frank Graham worked for the Midwest Piping and Supply Company.

Daniel N. Koshland

Daniel N. Koshland was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.