I don't know any of their first names but I also can't name the first names of any other well known wealthy families (off the top of my head walton, koch (I jus

I don't know any of their first names but I also can't name the first names of any other well known wealthy families (off the top of my head walton, koch (I just know they are "Brothers"), dupont, bush)... I don't need to know the first names to know the families are billionaires