For the next several days access to the database of the New England Historical & Genealogical Register is free. The URL is: www.newenglandancestors.org/research/Database/register/reg_info.asp I have checked it for Poythresses. I was not optimistic to begin with and that turned out to be a reasonable expectation. There are two links, both to Sally Poythress, first as widow to Col. Richard Lee and second m. to Willoughby Newton, both facts being well known to us. However, this is advertised as a massive data base and you may want to submit some of your other names to this search engine. Good luck. Maynard