This stuff concerns Matthew Clarkson, an immigrant to New York, around 1690/1700. He was a maternal grandson of Matthew Kenrick, citizen of London, who married Rebecca Percivall, daughter of Dr. Thomas Percivall, M.D., by his wife Catherine Ludford of Warwickshire.

Would this apply? "The Willoughby family was connected with the Thurland family through the marriage of Jane (or Joan), sister of Sir Henry Willoughby, to Thomas Thurland who died 5 January, 1473/4." https://books.google.com/books?id=pZJnAAAAMAAJ&q=%22thomas+thurland%22+joan&dq=%22thomas+thurland%22+joan&hl=en&sa=X&ved=0ahUKEwiN5fach8bMAhWBTCYKHfS7BAQQ6AEIODAF