Vikings' Bill Boyer, who owns a car agency, has 20% of club, runs it and boosts it with verve.
Cardinals' Charles Bidwill and brother William inherited the ex- Chicago club from parents.
Giants' Jack Mara and brother Wellington operate team founded by ex-bookmaker father, Tim.
Redskins' George Preston Marshall, once a laundryman, is famed for his half-time shows.
Lions' Bill Ford, of the auto-making family, recently bought team outright for $4.5 million.
Cleveland's Art Modell, former TV producer, earned notoriety as man who fired Paul Brown.
Cowboys' Clint Murchison, of the wheeler-dealer Texas clan, spends heavily on young club.
Colts' Carroll Rosenbloom, another wheeler (tote machines, textiles), was a Penn halfback.
Rams' Dan Reeves, a stockbroker, inherited a grocery fortune and once ran chain of theaters.
Packers' Coach Vince Lombardi rules club absolutely for a nonprofit community owners group.