Bernard F. Benson

M. K. Roberts

Charles J. Spiegl

Charles J. Spiegl was a civilian scientist employed by the Manhattan Project. He was involved in radiation toxicology, studying the effects of radiation on animals at the Trinity Site near Alamogordo, New Mexico.

Martin M. Whitaker

Martin M. Whitaker was a research associate at the University of Chicago’s Metallurgical Lab (“Met Lab”) during the Manhattan Project.

J. R. Hatfield

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