Henry J. Wojcinski

Leonard Krouldis

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

J. McCall

McCall worked in the 100 F Area at Hanford during the Manhattan Project.

E. G. Corcoren

C. M. Cummins

Cummins worked in the United States Engineer District Office.