George Friedman

R. V. Ward

R. V. Ward worked for the J.A. Jones Construction Company.

Helen E. Krinek

Helen E. Krinek was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

William J. Raiff

A. L. Crawford

A. L. Crawford worked for the J.A. Jones Construction Company.