Robin, I know this is an old query but I can tell you a little more about this family. For instance The Tabitha that married Alfred was Tabitha Lockhart. Her brother Drury Jackson Lockhart married Sarah Ellen Pinckard about 1835 but he died in 1842 and she then married Robert Hogg in 1854. She had no children. She accumulated quite a bit of property over the years and I would sure like to find a will for her. I have found several deeds etc. but no will. I could not find her or Robert Hogg after the 1860 census.