S. G. Thompson

W. E. Rossnagel

W. E. Rossnagel worked for the Union Carbide & Carbon Corporation.

C. W. Hokett

Hockett worked for Stone and Webster Engineering Corporation.

Walter J. Walawender

Walter Groeger

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