I have the following which I believe ties to your line:
Silvanus JOHNSON and wife Elizabeth living on Snails Creek Amelia Co., VA in 1742. Moved to Johnston Co., NC in 1752. Silvanus died September 1763. Sons: Absalom, Benjamin, Richard, and Silvanus.
Richard JOHNSON and wife Phereby lived south of Neuse River near Raleigh, NC. Children: William, Silvanus, Samuel, Richard, Phillip, Phereby, and Esther.
William JOHNSON born about 1752. Received 700 acre grant in 1779 on Fall and Marks Creek in Wake Co., NC. Sons were Aaron, Moses, Jacob, John, William, and Jessee.
I think this Aaron may be your line. My line is from John. Jacob is the father of President Andrew Johnson.