Claude M. Smead

C. O’Malley

H. J. Mack

H. J. Mack worked for the Edenfield Electric Company.

Richard Ehrlich

Richard Ehrlich worked at Los Alamos in the Theoretical Physics Division, during the Manhattan Project.

Elizabeth Howlett

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