J. Arthur Widmer

Ercole E. Motta

Ercole E. Motta was a research assistant at the University of Chicago Met Lab. He studied ways to determine the boron content of uranium oxide.

F. T. Hayden

Ed Helfenberger

Ed Helfenberger worked for the Roane-Anderson Company.

Wilma Sadler

Wilma Sadler worked for the Tennessee Eastman Corporation at the Y-12 Plant.