Forget that old saying that fortunes die by the third generation. Forbes’s List Of America’s 200 Richest Families (minimum net worth: $1.2 billion) shows many with roots going back to the 19th century. Among 33 newcomers: the Sacklers, who got rich off Oxycontin, and the Greenbergs, who created Skechers.

Full list of America's 200 richest families