Lloyd N. Williams

Minnie M. Daniels

Minnie M. Daniels was a laboratory technician and assistant in the Chemistry Division at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Betsy M. Schneider

Betsy Schneider was a staff worker at Los Alamos during the Manhattan Project.

J. D. McPherson

J. D. McPherson worked for the United States Engineer District Office.

J. Mallory