 David Percy Williams mixed-race son, Archie P. Williams, inherited part of the Percy/Williams Estate from his father, helped pioneer the oil and natural gas industry in Adams County, Mississippi and became a prominent Supervisor of the Third District in the Natchez area.His son, Thomas George Percy, Sr. (Princeton 1806), wed Maria Pope, (a relative of the British poet Alexander Pope) in 1814.Maria's sister Matilda wed John Williams Walker, a Princeton University graduate and one of Alabama's first two senators.