Dickinson W. Richards

Dickinson Woodruff Richards, Jr. (October 30, 1895 – February 23, 1973) was an American physician and physiologist.
He is best known for the research he did on the development of cardiac catheterization as well as the characterization of a number of cardiac diseases. 
Awards and recognition.
He won the Nobel Prize in Physiology or Medicine in 1956 "for their discoveries concerning heart catheterization and pathological changes in the circulatory system". He shared the prize with André Cournand and Werner Forssmann.
He died in Lakeville, Connecticut on February 23, 1973.