Daniel Bernoulli is best known to statisticians for his solution of the St Petersburg paradox posed by his cousin Nicolaus Bernoulli. Daniel, a famous prodigy, was the son of Johann Bernoulli and the nephew of Jacob Bernoulli, both being Professors of Mathematics. He gained a succession of degrees from U Basel whilst still a teenager: BA in philosophy and logic in 1715, MA in 1716, Doctor of Medicine in 1720. In 1724, whilst practising medicine in Venice, he applied mathematics to the design of an hour-glass for use at sea. This won him a prize and a post as Professor of Mathematics at St Petersburg U, where he worked on a number of probability problems. He returned to U Basel in 1734, initially as Professor of Botany, then as Professor of Physiology and finally, in 1750, as Professor of Physics.
http://www.mathematik.ch/mathematiker/daniel_bernoulli.php Fuller biography and portrait.