Thank you for writing, your family history is very interesting - but there still are many questions about Lincoln’s date of birth and parentage.
For what it's worth his mother may not have spoken English, and her surname may well have been HENGST and not HANKS, and she was probably from the Virginia/PA/MD border area where most people at that time didn't speak English ~ more likely they spoke French, Swedish or German, possibly even Plattdeutsch. Abe indicated his birth mother and father had belonged to the Seventh Day Baptists ~ John Leland's contribution to the Christian Church movement, as well as the foundational group for Midwestern Abolitionism.
These are things Carl Sandburg didn't know about that part of the world.
Not among men like David Herbert Donald, Ronald White, Doris Goodwin, or any of the other people who have written biographies of the man. So what do you know that they don't?