I think Tom Wagner might be able to help here since he breeds not just tomatoes,but also potatoes and has a good sense of history as well.
He hasn't been here lately but here's a thread where he last posted so you can PM him if any of you want to.
http://www.tomatoville.com/showthread.php?p=624069
I think this link might be enven better than the one above.
https://www.google.com/search?q=Tom+...&bih=815&dpr=1
Carolyn