Looking for info. on a Blankenship family that would have had the following children: Parents names unknown.

Mary P. Blankenship born 7 Sep 1820 Vir./W. Vir. Married 1839 PULASKI CO., VIR.

Rachel Blankenship born 27 Jul 1827 Vir./W. Vir.

William Blankenship (possibly a son?) born ca. 1828.

In 1840 Pulaski Co. census there was a Sarah Blankenship born ca. 1780-90 with several children but I don't have any info. on her or her family. There doesn't seem to be a Blankenship family in the 1830 or 50 Pulaski Co. census.

Any info. would be greatly appreciated!