[2] has never been proven, only speculated and endlessly repeated. It could have been his nephew, according to the DNA.
Viewpoint: No, the DNA testing is inconclusive and, at best, proves only that any of Thomas Jefferson's male relatives could have fathered a child with Sally Hemings.
Henceforth, I’ll consider qualifying the comment. Indeed, there is no evidence Webb Hubble has any relation to Chelsea, too.