Which Cowboys owner bought the team in 1989?

Which Olympic champion was the first president of the organization that became the NFL? Who served as NFL commissioner from 1960 to 1989? Who became NFL commissioner in 2006? Who served as NFL commissioner from 1989 to 2006? Which owner bought the New England Patriots in 1994? Which legendary owner famously said "Just win, baby!"? Which family has owned the Pittsburgh Steelers since their founding in 1933? Which family has owned the New York Giants since their founding in 1925?