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#1
22-03-19, 06:47
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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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#2
22-03-19, 07:00
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I made contact last night with a fourth cousin. Both she and her father had DNA tests done. I'm a match with her father, but not with her. He is 10cM, so either she hasn't inherited that particular snippet or only a small part of it.
__________________
The chestnuts cast their flambeaux
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#3
22-03-19, 07:09
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That's reassuring, Phoenix. We are probably 4th cousins, but I can't see that bottom of the tree.
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#4
22-03-19, 09:37
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This might help, Elizabeth:
https://isogg.org/wiki/Cousin_statistics If you share 4xg-grandparents then you would be 5th cousins, so only a 32% chance of your DNA matching according to that site.
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#5
22-03-19, 10:32
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Thanks, Kate. You always do wonder about children being passed off with the wrong father!
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#6
22-03-19, 21:18
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We are now in contact. Although we don't match, we both match with another person who has the same descent as this person.
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#7
23-03-19, 07:33
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Just for information, you can share your DNA matches with someone. You can let them just view them, or manage them (which I know several people do for relatives).
This was useful for me as that is how I found a shared match with the person I don't match with. I had looked at this match myself but the sparse tree didn't give me sufficient information to see which ancestral line we had in common. Now I can deduce it from one of the surnames which the two other people share.
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