Is anyone researching any Harris families in Patrick or Henry Co. Va?

All lines cite they were the offspring of a female born free before 1805

Have been researching these lines since 1980's but have only found one other person researching the line I belong to.

Also interested in Snell lines as well and one line moved to Ohio by 1860 and changed his last name from what was written on his marriage record in Henry Co. Found in Ohio listed as James Madison Stoval