Rudolf Diesel, born in 1858, inventor, he invented the diesel engine in 1897. Funding came from a brewer. Diesel earned the highest grade in engineering school on record. Diesel was neurotic and fell overboard on a trip to Europe. He died at age 55 in 1913, but he might have committed suicide, no one knows for sure.
David Shemin, born in 1911, chemist , he worked out heme synthesis using carbon 14, He died in 1991 at age 80.