Russell Peterson

Neat A. Hutchins

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.

H. T. Ledford

H. T. Ledford worked for the Tennessee Eastman Corporation at the Y-12 Plant.

Paul F. Gast

Gast worked at the 300 Area at Hanford during the Manhattan Project.