George A. Beckett Jr.

Martin J. Costello

George Maronde

George Maronde was a security guard at the University of Chicago Metallurgical Lab. He stood guard outside Stagg Field when Chicago Pile-1 went critical on December 2, 1942.

Patricia Hansard

Patricia Hansard worked as a “cubicle girl” in the Y-12 Plant from 1943 until the end of the war.

Paul L. Larson