arrival of microchips and semiconductors. the farm roberto ayala ran, worth tens of millions of dollars, all going to just one extended family, the moores. they were very, very private. reporter: this is mary, part of the greater moore clan. her family, like many of the big farming families around here, keeps its wealth private, too. i knew that there was money there, but they didn t flaunt it in any way and you weren t told about it. you just knew that it was there. reporter: she learned early, she said, that the family fortune was also a tool to keep the descendants in line. my dad would say like when i was in high school, if you ever get into drugs or do anything i m kicking you out of my will. reporter: though she could never have inherited the land, that birthright was passed from father to son, not daughter. the custom started with the moore family patriarch, who handed the farm down to his two sons, roger and gus, now in their 70s. each of them had a son born just