I believe you are confusing two different daughters. Sally born in 1823 and Allie, born in 1817. The problem is that they both married Stevens, Allie and Nathan in 1835 and Sally married Joseph Stevens in 1843. Sally died in 1918 in Morgan County. You might want to post your problem on the Phillis Board. So the Grandmother was the same person for both of their children. If you have any information on Allie's children, I would be interested in their names.