Charles C. Littlefield Jr.

Mary E. Parrish

Mary E. Parrish was a research assistant at the University of Chicago’s Metallurgical Laboratory (“Met Lab”) during the Manhattan Project.

Floyd Hutchins

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

Karl O. Johnson

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

George W. Butz