Carmichael history suggests she may be Magdalena Leinbach, d/o Benjamin Leinbach (whose wife is given there as Catharina Riem; actually Benjamin's wife seems to be Christina Volck). I am assuming that this is true, and that Benjamin Holder 1806-1882, who married Susanna Holder, is their son. See LDS film 1638368, Carmichael section from Oscar Curtis.

I am assuming this is the correct marriage - Stokes Co. records list Henry Holder and Polly Linebach. The dates seems about right.

The following information for Maria Magdalena Leinbach, d/o Benjamin and Christina, from Harvey Lineback:
Genealogy of Leinbach-Lineback Families, p NC 18.
BIRTH - IGI North Carolina p 7991 (Apr 1988).