I found your information very interesting about Tennessee Williams. In searching for his background, I see that his grandfather's name was Thomas Lanier Williams. I show his mother's name as Edwina Dakin. It stops at the great-grandfather as John Williams. The Lanier name has to go further back if this is correct. This was found on the Church of Jesus Christ of Latter Day Saints web site, at http://www.family
search.org/Search/af/pedigree_chart.asp?recid=25251700. (Of course, there are no spaces).
I would really like any more information you may have!