jane, If the story I told you was correct, the polly I mentioned would have been 1/4 cherokee.
William married Cherokee
Had three sons 1/2 chrokee
thoomas was polly's father this would make this polly 1/4. May be coincidence or the one you are looking far. This is all I have now, will contact you if more inhformation comes my way.
By the way several member of these three families(relatives of Polly) move to Kentucky and linestone County Alabama between 1810 and 1825. Polly and husband may have gone with them.