Katherine: As Elizabeth Waring Wilson has said, James Madison Roane's father was John Jones Roane; whose father was John Roane, "The Old Original". Spencer Roane [b.1762 d.1822] wss 1st cousin once removed of James Madison Roane. He m. Anne Henry, dau. of Patrick Henry. 'Zat help?
Check out "roane11" and "waring4131d" in RootsWeb Family Trees.
Since you are in King William Co. you may be able to help with a major problem associated with John Jones Roane [Jr.] who was a one term Congressman and remained in DC as a civil servant in the Patent Office and Treasury Dept. He allegedly married a Mary Magdalene Attaulla. Surname is of Arabic derivation. She may have been of the international community in DC. They lived in DC where [apparently] both died and are buried. If you have access to family Bibles of the period c. 1860-1850, perhaps of his father, John Jones Roane, we might have some verification.