I think the Tibbs I am looking for are the ones all of you are referring to on this thread.
Marshall Tibbs (or HM Tibbs) born 3/1844 to Josiah and Polly of VA. I think Polly is really Mary Ann Hartley. Josiah's parents were Henry Tibbs and Phoebe Pursley. Other children besides HM are William & Alford/Alfred.
Marshall/HM married Georgia Ann Fort. They would be my gg grandparents.
If you have info to confirm what I think is right, please email me: email@example.com.