All researchers in my line reject Sion Hill as a direct ancestor. At one time he was thought to be but that thinking went out the window many years ago. Sion May be a distant cousin but not a direct ancestor. Ancestry.com can verify this also.
Thank you very much. If anything turns up on William Hill who married Susannah Smithers I will let you know. Most who study this line feel that a William Hill who came from Maryland is Williams father. His wife was said to be Anne. That is as far back as anyone knows.