H. A. Hopper

J. R. Pickering

J. R. Pickering worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Fredrika Lewis

Fredrika Lewis was a laboratory technician in the Health Division of the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

J. I. Maston

Anne A. Butrimo

Butrimo worked at Los Alamos during the Manhattan Project.