Very few Americans and people around the world are heirs to the 9th generation or further. This understanding impacts our founder.
Williams heritage began with David Williams of Bangor England who migrated to the Louisiana- Mississippi area around 1760
By the fourth generation in the 1800s (the great grandchildren of David Williams) their parents David Percy Williams and his wife Elizabeth M. Williams had sold the businesses, real estate, timber and agricultural properties. Only Archie P. Williams retained property in Natchez
4th generation heir, Archie P. Williams, sold property to his two daughters in 1926 (which they later sold out of their family in 1957 and kept oil and gas rights. However, no oil & gas was produced). A.P. Williams set up his grandson Archie J. Williams, 6th generation, to receive properties from his neighbors. In part this was an effort to continue the legacy. Since the neighbor properties weren't own by A.P. Williams, it wasn't part of his estate. Thus:
By the 6th generation , only 1 out 150 of the Williams "would be" heirs actually had an inheritance in Natchez area by 1950. That's 0.7%. It was Archie J. Williams
7th-8th generation, children and grandchildren of Archie J. Williams sold most of their properties in the 1980s-early 2000s.
9th generation, Anton R. Williams, the founder and owner, took his inheritance and created several companies of his own. He rapidly expanded the holdings on properties formerly owned by family in addition to new business development.
By the 9th generation, 1 out of about 1,500 of the Williams was an heir with majority resources, who is the owner, Anton R. Williams. That's 0.0007% out of the same extended family.
When including all adults in the U.S. and globally, the percentage drops to a 1 in 1 million chance of being a 9th generation heir