There was a Lawson Henderson Alexander who was born in Lincoln County, NC who was the Son of Wallace Alexander and Ann Dobson. Wallace was the brother of Nathaniel Alexander who was Governor of NC 1807-1808. Wallace died in 1804 and his brother Nathaniel was the executor and gardian of Lawson. Information about this can be found in the book Alexander Kin by Charles C. and Virginia Alexander and Book A, Meckenburg County, NC wills. There was a marriage in Mecklenburg County on May 6, 1823 between Lawson Alexnader and Jenny Barry Elliott. I believe they are the same Lawson.