Fred G. La Violette

J. E. Earley

S.T. Cantrill

S. T. Cantrill was a research associate at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

D. P. Hall

D. P. Hall worked for the J.A. Jones Construction Company.

D. D. Ogden

D. D. Ogden worked for the J.A. Jones Construction Company.