My 2nd great-grandfather, Littleton Berry Abbett, was born 10 Aug 1825 in Georgia, as shown on all Census records. He married Sarah Elizabeth Caroline Land in Dadeville, Tallapoosa Co., AL in 1850. His sister,Elizabeth "Eliza" Abbett, was born 1817-1820 in South Carolina, according to Census records. She married Joshua L. Callahan 1841 in DeKalb Co., GA.Some circumstantial leads suggest, but are far from convincing, that their father may have been a William Abbett/Abbott, or other spelling variations of the surname.
Any ideas that you have will really be appreciated!