National Museum of Nuclear Science & History
Annen worked for Stone and Webster Engineering Corporation.
McKinney worked in the 200 East Area at Hanford during the Manhattan Project.
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).
