Hillary is a good old name, but one you don't see often, so it got my attention. Cousin Sherry started this thread, hopefully this post won't be the last.
John Swarens/Swerns/Swearings/Severing/Severns et. al. & Nancy Brunk did not likely marry in Kentucky, as they were in Greenville Co. SC in 1790 (assuming Nancy was John's only wife). Sherry & I descend from their son David who claimed to have been born in SC.
They also had a son Christian, who married David's wife's sister Sally Ash. Christian & Sally had a son Eli, who married Susan Avery. Eli & Susan Avery had a son named Hillary who appears to have died young.