National Museum of Nuclear Science & History
Harold Koch was an electrical engineer at Oak Ridge, Tennessee during the Manhattan Project.
H. G. Singleton worked for the Roane-Anderson Company.
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).
John H. Martens was a research associate and chemist at the University of Chicago Met Lab and a member of the Special Engineer Detachment at Oak Ridge.
