National Museum of Nuclear Science & History
Nathan Ballou (1919-2016) was an American chemist. He was born in 1919 in Rochester, Minnesota. In 1941 he received a bachelor’s degree from the Duluth State Teachers College (now the University of Minnesota Duluth).
Chaim Richman (1918-2017) was a Polish-American physicist. Richman was born in Tomasov-Rebelski, Poland.
Robert Cantrell joined the Manhattan Project in 1943 and worked as an architect for Dr. Walter Zinn’s design group at the University of Chicago.
