This William B. Dorris abt1775-1826 has been confused with William Benjamin Dorris 1761-1842.
William B. Dorris was married only to Sarah Boren and not 1st to Eleanor Brown who married William Benjamin Dorris.
A very helpful resource is a newspaper article attached to the FAG memorial #120830477 for Isaac Dorris, father of William Barker Dorris.
I have yet to find a source for William's middle name, Barker. Perhaps the creator of the memorial knows it.
The newspaper article mentions twelve (12) children. I have only identified eleven (11).