J. S. Gehrken

Joseph Caldwell

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

Nathalie S. Baumbach

Nathalie Baumbach was an American chemist who worked on the Manhattan Project. Baumbach majored in chemistry at the University of California Los Alamos.

C. G. Plomasen

C. G. Plomasen worked for the Tennessee Eastman Corporation at the Y-12 Plant.

E. J. Cohen