Yes they do have a tree but the name which brought them up is only one person on her tree from back in the 1700s so not sure if that will be our main connection. Seems unlikely. She and I have already been trying to locate where our connection can be for the last 18 months. I'm beginning to lose my impetus, I really am. I have more puzzles than you can shake a stick at. I've already managed to solve one but still have three more, including the current search. It is so difficult to keep going when you seem to hit so many dead ends. However, I'm not spent yet and shall keep going.
The thing is when you use the search box on the DNA results page it brings up everyone who has that surname in their tree but that can be a complete red herring. That's why I tried to do it the other way around and searched in Public Member Trees for the person you're investigating and then search the trees which have that person in them and look for someone who also has a DNA connection to me.
There may be other ways of searching and I am completely open to any help regarding this. At present it feels a bit like banging my head against a brick wall. Why don't more people take the DNA test? This could make my task so much easier.