Floyd Hutchins

Leonard Krouldis

Leonard Krouldis was a laboratory helper at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

E. G. Corcoren

Clarence A. Schalia

Clarence Schalia was a staff worker at Los Alamos during the Manhattan Project.

Kay Hamilton

Kay Hamilton was a biologist in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.