P. E. L. Nussbaum

J. F. Bevis

J. F. Bevis worked for the J.A. Jones Construction Company.

Charles Cooper

Charles Cooper was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Joe Roestenburg

H. R. Pancoast

H. R. Pancoast worked for the Comstock-Bryant Electric Company.