A. F. Dodd

Joseph LaRocco

Joseph LaRocco was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

R.C. Sievers

Lucien Nerman

Lucien Nerman was a security guard at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Charles J. Ragan

Charles Ragan worked for the United States Engineer District Office.