G. W. Maris

Opaline Calhoun

Opaline Calhoun was a laboratory technician at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

D. L. Anderson

Eleanor Eekwald

Eleanor Eekwald was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Jas C. Stewart

Jas Stewart worked for the United States Engineer District Office.