Hi Andrea. If you don't already have it, there's a copy of the emancipation of Peter Gwaltney and others on
http://www.freeafricanamericans.com/virginiafreeafter1782.htm
And the tax lists include Peter, Sr., Clement, Peter, Jr., John, Sr., Benjamin and unnamed son Gwaltney starting about 1811. The lists for the 1850s might include Ross near other members of the family.
Paul