 Robinson is the son of John Munro Robinson (1917-2017), a University of Minnesota law school graduate and banker/estate planner, and Kathleen (née Tanner) Robinson (1925-2002), a career housewife and homemaker.Robinson's next-oldest brother, Dave Robinson, played in the major leagues for two seasons with the San Diego Padres.Robinson is also the father of Scott Robinson, an ambidextrous first baseman and catcher who played in the Houston Astros and Seattle Mariners organizations, was league MVP with the Macon Music, and spent two years as a player-coach with the River City Rascals.