Harold Urey
Chemist
An American physical chemist who won the Nobel Prize in Chemistry in 1934 for discovering the isotope deuterium. He also did important work in uranium enrichment and isotope separation through gaseous diffusion.
He went to an Amish grade school in Indiana as a boy.
He was awarded the Medal of Merit for working on the Manhattan project.
He had four children with his wife Frieda Daum who he married in 1926.
Like Albert Einstein, he was a Nobel laureate who worked on the Manhattan Project.