Matilda(b. 1795) and Sinia/Sina (b. 1805) UNDERWOOD were sisters who married brothers George Washington SHERIFF and Nathaniel SHERIFF respectively. They seem to have been born in Pickens Dist., SC, but it may actually have been Anderson Co.., SC, or even the Edgefield/Dist. 96 area. I have actually not found much of anything on them. Their children were mostly named for the SHERIFF family except that both named a daughter Matilda. I cannot find any parents for them and would greatly appreciate any ideas or help!!! Thank you! Dolores M. Pringle