Floyd E. Ross

G. R. Lennebacker

Celia Szapka Klemski

Celia Szapka Klemski was working as a secretary for the State Department in Washington, DC when she was transferred to Manhattan to work on the Manhattan Project in 1942.

Walter C. Youngs, Jr.

Walter Youngs, Jr. worked for the United States Engineer District Office.

Ellis P. Steinberg

Ellis Steinberg was an American Chemist. He was a junior chemist at the Metallurgical Laboratory in Chicago during the Manhattan Project.