lester holt (voiceover): when people hear the words "fortunes" and "california" in the same sentence, when people hear the words "fortune" and "california" in the same sentence their minds generally go to some internet sensation like google or apple. but just 50 miles from the silicon valley is the san joaquin valley where fortunes were made long before the arrival of micro chips 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.