M. J. Morson

Sherman D. Kaplan

Sherman D. Kaplan was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Herbert G. Gee

Arkie Regnault

Arkie Regnault worked for the Roane-Anderson Company.

J. C. Ledbetter

Ledbetter worked in the 200 East Area at Hanford during the Manhattan Project.