I am working in Laurens Co for some prospective DAR members, and I ran across something you might not have seen. I remember you had both Dillard and Duckett. On FamilySearch.org they have the actual copies of the probate records for Laurens Co. https://familysearch.org/pal:/MM9.3.1/TH-1-19382-11901-20?cc=1911928&wc=10593563 is a probate record for showing those who bought in the sale of Mildred A Henderson. There are several Dillards and at least one Duckett.
Mildred A Henderson's estate is in Box 96/Packet 23. https://familysearch.org/pal:/MM9.3.1/TH-1-19382-11982-53?cc=1911928&wc=10593563