Mary Lou, From family records I have the following: Children of William Sebastian and Louisa Strother Sebastian: 1.Benjamin Sebastian, died in infancy 2.Benjamin Sebastian IV, married Kitty Anderson, lived Brandenburg, KY 3.Amelia Sebastian, died single 4.Margaret Sebastian, born 3/12/1807, died 9/19/1860 (my gg grandmother)Married Wm. Lahue, born 10/17/1805, died 8/4/1863 5.Charles Sebastian, born 2/4/1810, died 11/6/1896, married Hannah Gilham 6.Nancy Sebastian, died 8/14/1860.Married James Spencer, died 9/19/1863. 7.William Sebastian, born 11/10/1817, died 11/2/1897.Mar. (1) Mrs. Louisa Jane Spaulding (2) Caroline Graham 8.George Sebastian 9.Hamilton Sebastian, died 1875.Mar. Tabitha Jacobs. 10. Elizabeth Sebastian, mar. Mr. Brown 11. Emmiline Sebastian, mar. Wm. Davis.She was bsorn 3/4/1815, died 12/21/1891 12. Pendleton Sebastian, born 1823, d. 3/14/1849 at New Orleans, LA
I haven't pursued these people in the KY census, so can't guarantee info, but this may give you some more to work with.