Lincoln had four sons, three of which died before achieving adulthood. Robert Todd Lincoln, the eldest of the four, was the only son who lived long enough to marry and have children. His eldest daughter, Mary, birthed a son named Lincoln Isham, who later had no children. Robert’s middle child, Abraham, died at the age of 17 and therefore had no children. And finally Jessie, the youngest, had two children of her own, Mary Beckwith and Robert Todd Lincoln Beckwith, neither of which had any children. Unlike the father of Islam, Judaism, and Christianity whose descendants were said in the Bible to be as numerous as the stars, our Abraham’s lineage only lasted three measly generations!