C. B. Butts

Howard A. Cullen

Tom J. Mulcahey

Tom Mulcahey was a staff worker at Los Alamos during the Manhattan Project.

Jas Connelly

Connelly worked for Stone and Webster Engineering Corporation.

Clyde R. Emery

Clyde R. Emery worked in the shop at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.