Smith Family of NC

Hi,
I am looking for the siblings and parents of David Smith b.Nov 1817 Ashe, North Carolina d.21 May 1859 Wyoming County, Va.
He was married #1-Lydia Sizemore d/o Edward B.Sizemore and Anna B. BALDWIN..b.1825 Wilkes Co., NC d.13 May 1855 Wyom. Co., WV.
#2 wife Susan Pruitt b.1832 Tazewell Co,VA.

David and Lydia had many children which I have found, but can not find Davids siblings or parents..Any help is welcome.
Thanks
Sherry