J. H. Sorenson

Helen E. Krinek

Helen E. Krinek was a research assistant in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

E. A. Koutnik

Agnes J. Ryan

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

E. R. Gilbert

Gilbert worked at the 200 West Area at Hanford during the Manhattan Project.