Gilbert M. Purswell

D. L. Anderson

Mary M. Fair

Mary Fair worked as a lab assistant at the Metallurgical Lab at the University of Chicago. She was not sure of the purpose of her work, but often used radiation detecting devices in the experiments.

Harry Reason

Harry Reason was a janitor at the Metallurgical Laboratory in Chicago during the Manhattan Project.

R. I. Bonsai

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