DNA - no match?
There is an Ancestry tree with one of my Cornish sets of 4x-great-grandparents shown as ancestors to the tree owner.
I can see the tree owner descends through one of the daughters, sister to my 3x-great-grandmother. The research looks sound.
The tree owner has done a DNA test but we have no match.
Should I expect a match if our research is correct, or does this sometimes happen? Should I suspect that somewhere a parent is different from my or his research?
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