In 2011 , the Forbes 400 list of America 's wealthiest showed her as the 263rd richest person in the U.S. , estimated net worth of US $ 1.8511 billion , and the world 's 651st richest person .
In 2011 the Forbes 400 list of America 's wealthiest showed her as the 263rd richest person in the U.S. , estimated net worth of US $ 1.7 billion , and the world 's 651st richest person .