Walker Mayo Connection

I have found that my Great-grandfather William L. Walker was the son of Susannah C. (MAYO) Walker and Lawrence Walker. They were in Albermarle County, Virginia. Lawrence died, I'm assuming, in VA, ca. 1850.

In the 1850 census for Albermarle Co., Susannah and her son, William, age 14, was living with a relative, Valentine Mayo.