Which family has owned the Pittsburgh Steelers since their founding in 1933?

Who served as NFL commissioner from 1989 to 2006? Which Cowboys owner bought the team in 1989? Which owner bought the New England Patriots in 1994? Which legendary owner famously said "Just win, baby!"? Which family has owned the New York Giants since their founding in 1925? Which family has owned the Chicago Bears since George Halas? Which family owns the Kansas City Chiefs, founded by Lamar Hunt? What position did Tom Brady play?