H. Stringfield

Sanford L. Simons

Robert C. Hirt

Robert C. Hirt was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Gertrude W. Mitchell

Gertrude Mitchell worked for the Roane-Anderson Company.

H. W. Bellas

Bellas worked in the 100-F Area at Hanford during the Manhattan Project.