Harold Urey
29 April 1893 — 5 January 1981
Harold Clayton Urey was an American physical chemist who conducted pioneering work on isotopes. He earned the 1934 Nobel Prize in Chemistry "for his discovery of heavy hydrogen." He played a significant role in the development of the atom bomb, as well as contributing to theories on the development of organic life from non-living matter.
A memorial on Digital Cemetery, an endless map you can explore. This grave stands at coordinates 26, 16.