Dennis J. Nyhan

Celia M. Ryan

Celia Ryan was a staff worker at Los Alamos during the Manhattan Project.

D. J. McKinzie

D. J. McKinzie worked for the Kellex Corporation at the K-25 Plant.

Helene M. Smith

Helene Smith was a laboratory technician in the Health Division at the Metallurgical Laboratory in Chicago during the Manhattan Project.

Dick Duffy