Major Philip Clayton II, son of Samuel and Ann (Coleman) Clayton, was an officer in the Revolution and an original member of the Virginia Society of the Cincinnati.

He lived at Catalpa, so named for a catalpa tree he transplanted from Essex, the first of its kind in Culpeper County. Located just west of the site of the first encampment of Culpeper Minute Men in 1775.

Major Clayton's daughter, Sarah Ann, married Dr. James Brown Wallace. He was the ancestor of Williams, Slaughter, Pendleton, Strother, and Hansbrough families of Culpeper and numerous Claytons in George and South Carolina. [Source: "Genealogical & Historical Notes on Culpeper County, Virginia, Embracing a Revised and Enlarged Edition of Dr. Philip Slaughter's History of St. Mark's Parish" and this was compiled by Raleigh Travers Green and originally published in 1900 in Culpeper, VA.]