L. B. Mosher

J. I. Moffett

Opaline Calhoun

Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

H. E. Stoner

Stoner worked for Stone and Webster Engineering Corporation.

Percy G. Phillips

Percy Phillips served in the Special Engineer Detatchment (SED) at Los Alamos during the Manhattan Project.