National Museum of Nuclear Science & History
Piper worked for Stone and Webster Engineering Corporation.
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).
Schopp worked at the 200 West Area at Hanford during the Manhattan Project.