People William Kennedy Smith American physician; younger son of Jean Kennedy Smith and Stephen Edward Smithborn 1960 Stephen Edward Smith24 September 1927 – 19 August 1990Jean Kennedy Smith20 February 1928 – 17 June 2020 William Kennedy Smithborn 1960 ParentsStephen Edward Smith24 September 1927 – 19 August 1990Jean Kennedy Smith20 February 1928 – 17 June 2020 From Wikipedia and Wikidata (public domain), updated daily.