Hello, Bunny. I do not believe that my line of the surname has any connection to your search, excepting appearing in a similar time frame (mine in San Saba county). However, Alexander Black was in Mason county, TX in 1860 as well. He was listed born in 1806, KY. His wife was Elizabeth, born 1815, TN. (In 1850 Cherokee co., TX she was Elizabeth Brewer, born SC, then in another marriage) Their children are Alfred W, 1841, AL; Martha Ann, 1860, TX; Isabel Christian, 15, TN; Clarissa Brewer, 13, TX and Sterling Brewer, 9, TX [may be Starling rather than Sterling]. Near by on another property is W P Black, 1834, AL and T M Black, 1836, AL.