J. S. Gehrken

W. M. Miller

W. M. Miller worked for the United States Engineer District Office.

Gonzalo Williams

Gonzalo Williams was a staff worker at Los Alamos during the Manhattan Project.

Joseph H. Heartberg

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

James G. Stearns