People Forrest Mars grandson of Frank C. Mars and American billionaire (1931–2016)16 August 1931 – 26 July 2016 Forrest Mars21 March 1904 – 1 July 1999 Forrest Mars16 August 1931 – 26 July 2016 ParentsForrest Mars21 March 1904 – 1 July 1999SiblingsJJohn Franklyn Marsborn 1935JJacqueline Marsborn 1939 From Wikipedia and Wikidata (public domain), updated daily.
