Estella S. Burns

John Costa

John Costa worked at the shop in the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

E. W. Seckendorff

Seckendorff worked for Stone and Webster Engineering Corporation.

H. C. Hall

J. M. Comly

J. M. Comly worked for the Tennessee Eastman Corporation at the Y-12 Plant.