John G. Holmes, Jr.

R. G. Cooper

R. G. Cooper worked for the Union Carbide & Carbon Corporation.

Marcia W. Wooster

Marcia W. Wooster was a lab technician in the health division at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.

Josephine (Benedeck) Hinch

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

G. F. Lee