National Museum of Nuclear Science & History
Bernard Peters (1910-1993,) born Bernhard Pietrokowski, was a Polish-born physicist. Peters was born in Poland and later moved to Germany.
J. H. Graham worked for the Tennessee Eastman Corporation at the Y-12 Plant.
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.
Tappscott worked at the 100-F Area at Hanford during the Manhattan Project.
