I have been trying to find those graves as well; would you mind me asking where exactly the Baker/Drinkard Cemetery is? I had heard it was on Route 631, but did not have any further information.
The Price line goes all the way back to Jamestowne, and I do have some documents linking Mary Sarah (Polly) Price and Andrew Baker to Andrew B. Baker (I am descended through Andrew B.'s sister, Martha A. Baker)if you are interested. There is also an article on the Buffaloe Settlement that may be of interest.