National Museum of Nuclear Science & History
Pierce worked in the 200 West Area at Hanford during the Manhattan Project.
Grace Thompson was a stenographer at the Metallurgical Laboratory in Chicago during the Manhattan Project.
William E. Caldes studied chemical engineering at Princeton University. In 1943, he was recruited to join the Manhattan Project, and became the 19th project member at Los Alamos.
Ken Foster joined the Dayton Project in July, 1948. He worked in an assay group at the Runnymeded Playhouse in Oakwood, where he conducted studies on the radiation properties of the polonium that was being manufactured there.