Something to process too.
So someone who descends from my Peter has also done a dna test.
We both share a dna match with someone who descends from Dugald McCallum who I believe was born about 1790 (he is in ardchattan) and Janet McIlriach born about 1796, so my Peter has to connect to Dugalds branch (although not his son I don’t think, I definitely don’t see a son Peter born to then anyway, It will be from either a sibling of Duglald or another generation back and then down, I think.
I think my head might explode lol.