Mona, I found the estate papers for William Black (dec'd 1803) in the "Miscellaneous estate papers 1782-1958, Abbeville Dist. SC Probate Boxes 11-12, South Carolina Probate Court" FHL Film # 0181685. I have copies of the pages which were listed as Box 12 Pack 233. There is no relationship between Matthew Robinson and William Black that I have found. Most of the buyers at the estate sale were very close neighbors of William Black found on pages 35 and 36 of the 1800 Abbeville census. The one Robinson enumerated in 1800 Abbeville was a "Darius" on p.24.Matthew Robinson and a David Robinson were both buyers at the sale.