Norman S. Hintz

May Jayne

May Jayne was a stenographer at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Karl O. Johnson

Karl Johnson worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Dan Grim

Clarence F. Hiskey

Clarence Francis Hiskey (1912-1998) was an American chemist and Soviet spy. He worked at Columbia University and the University of Chicago’s Metallurgical Laboratory during the Manhattan Project.