If you're still looking after all this time, please contact me. I have some of the same info you have, but I am of Jane/Janet Cooksey's line, William's daughter who married Joseph Tarpley Tucker in Russell county, Alabama.
I think, but have no proof, that Gilly Ann Tucker who married Duncan Cooksey was Joseph T. Tucker's sister. I know very little about J. T. Tucker's family and would like to know more. If I can help you with the Cooksey line, let me know.