As far5 I've been able to tell with much certainty my 2nd great grandfather was a John Civil. Things appear to get a bit loopy at this point. It looks like the surname starts to change going back in time to "Civial" "Cevial" and "Saville" It looks like John's parents are James Bayard Civial/Saville/Civil and Mary Ann Baker.
If anyone can confirm the name variations I would appreciate it.