Author Topic: confused about ancestry ThruLines  (Read 366 times)

Offline Wulfsige

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confused about ancestry ThruLines
« on: Thursday 22 June 23 08:17 BST (UK) »
You get to ancestry's ThruLines via their "DNA Results" section, but I understand they are based on public trees, not on DNA. Are they in any way linekd to the results of people's DNA tests, or are they only derived from trees people have constructed? If the latter, their presence in the DNA Results section is misleading. Can you enlighten me, please?
Young, Gameson, Miles, Williamson, Cramond

Offline Pheno

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Re: confused about ancestry ThruLines
« Reply #1 on: Thursday 22 June 23 08:21 BST (UK) »
Thrulines are in the dna section because ultimately they show you the route from your dna result to that of your dna match, albeit by using ancestry trees.

Pheno
Austin/Austen - Sussex & London
Bond - Berkshire & London
Bishop - Sussex & Kent
Holland - Essex
Nevitt - Cheshire & Staffordshire
Wray - Yorkshire

Offline brigidmac

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Re: confused about ancestry ThruLines
« Reply #2 on: Thursday 22 June 23 09:22 BST (UK) »
a person has to have a dna link to you 
AND
a linked tree on Ancestry

in order to appear on thru lines with you

some of your known matches will not show on thru lines if they have no trees or unlinked trees

conversely someone with a closed tree may show on a thru line if you have a shared common ancestor .

This can be very useful If suggested connections show in green you have to check the authenticity
for example if they show as descended from a sibling to your great grandparent you need to confirm that that sibling exists then add the sibling to your tree

if  thru line is to someone with a very small tree you have to research all their connections

there will be a dna connection but it might not be the way the thru line suggests





Roberts,Fellman.Macdermid smith jones,Bloch,Irvine,Hallis Stevenson

Offline phil57

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Re: confused about ancestry ThruLines
« Reply #3 on: Thursday 22 June 23 09:25 BST (UK) »
Ancestry knows who your DNA matches are. Thrulines looks through all the user trees that are marked as searchable, for possible routes that could link you and your match. The results are simply hints for you to review and research to either confirm or discard.

I had numerous Thrulines hints to cousins on one branch of my tree that were, until recently, all correctly shown. A recent tree has appeared which incorrectly links my GGM to the wrong husband for some, but not all of my GGM's children, and all of those cousins are now shown in Thrulines as half cousins, despite up to 8 correct trees being referenced by Ancestry if I click the Evaluate links, Thrulines is choosing to display the results from the incorrect tree. It is a hint tool, nothing more. Beware and treat it accordingly.
Stokes - London and Essex
Hodges - Somerset
Murden - Notts
Humphries/Humphreys from Montgomeryshire


Offline Wulfsige

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Re: confused about ancestry ThruLines
« Reply #4 on: Thursday 22 June 23 16:25 BST (UK) »
Thank you, one and all. I don't understand the technicalities, but biology and maths are not my strong points - but I think I get the general picture better now.
Young, Gameson, Miles, Williamson, Cramond