Craig did a small, informal offer of "Branscomb" seeds to a few on GW in spring '06 (perhaps late '05). Maybe that's what Mary is working with.
If so, they were pretty old seeds, sent to Craig in '90 by Don Branscomb. I can't find the original offer, but here's a thread alluding to it--
http://web.archive.org/web/200604270...484125368.html
and some discussion here--
http://www.tomatoville.com/search.php?searchid=5098