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General => Ancestral Family Tree DNA Testing => Topic started by: brigidmac on Tuesday 23 June 20 14:24 BST (UK)
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I wonder if someone could check my hypothesis for my mum's DNA
I've found connections to her russian Jewis grandfather GJF thru His paternal side and confirmed the relatinship
Now I have worked out connections via a lady I believe to be his maternal aunt
Anna landman I have no paper proof that she is the sister of our Geis Ada LANDSMAN but Anna had 4 sons with Isaac Bloomberg
1 match via eldest son would be mum's 3rd cousin they match at 97 cm ( matches my DNA at 22cm )
The other match via eldest son is grandson of Isaac Bloomberg + Anna Landman b1860 so is mum's Second cousin onc removed
Match 102 cm to my mother (27cm to me)
Shouldn't it be higher as it is a generation closer to the mutual ancestors
Paper trail does show that all the elders lived in Jacobstadt Courland Latvia Russia beteen 1850''-1880's
I'm wondering if the second cousin once removed has actually put his father as home person so if it's his own DNA he would be a third cousin too
Any opinions ?
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This is research done into Landsman /Landman connections if anyone is interested
I'd like to know if DNA corroberates
https://www.rootschat.com/forum/index.php?topic=736802.msg5827623#msg5827623
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Do the numbers fit with other people's results for half second or third cousins ??
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Do the numbers fit with other people's results for half second or third cousins ??
https://dnapainter.com/tools/sharedcmv4
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102Cm gives 39% half 2C, 2C1R etc and 30% 3C, half 2C1R etc
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Mine are so variable
For 2C1R I have 37 / 4 segments and 34/3
for 3C I have 58/5 and 45/4
for 3C1R I have 90/7, 62/5, 49/4, 35/4, 31/2, 29/1 and 25/2 a huge variation
but I have a 5C at 25/1
5C1R at 22/1 but a 4C at 21/1
These are from different branches of the family. My 3C at 58/5 is the uncle of my 3C1R at 31/2,
I have two half third cousins once removed, who are first cousins to each other (their fathers were brothers to each other), they are 62/4 and 32/2, so one is almost half the other. The son of the 32/2 is 18/1 (half 3C 2R)
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Thanks for the painter definition + your concrete examples
The amounts are so variable
It's interesting that even within same family group it can vary so much
So I can't pinpoint the generations
But will persist and maybe contact more of the people who seem to match thru the lines I've traced .
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Just had a look on my tree where I have 2nd Cousins of the same Generation as I they are directly related to my Great Uncle.
3rd Cousins add an extra generation and a whole lot of extra potential people.
My seven 3rd Cousins results that I have there is one with 144Cm they go down to one with 91Cm, and only those with a Family Tree and a known Common Ancestor have I been able to link to (the one with 91Cm).
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I don't know how significant segments are .
I've built up my tree sideways and one of these people now shows up on thru lines as half 3rd cousin 97cm 3 segments
The 102/ 7 segment match has no tree but from owner's name I think he is half 2nd cousin 1 X removed
There are some smaller matches from same line but they have no trees or small trees .
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Have had more matches some dont show up on thru lines but from the same great great grandfather ( possibly different wives)
I have grouped them into descendants of each child
I have a theory that men have stronger match than female relatives ...dont know gender of some matches
2c female 351 cm
2c1r female 49cm
2 c 1 r 217. Cm
,2c 1 r male 162
Half 3rd C 58cm 6 segments woman
Half 3c1 R man
Half 3 c 1 r 25 cm 3 seg woman
Half 3 c1r 19cm 3 segments
Half 3 c 1 r 9cm.
Half 3 c 1 r 23cm.3 segs V
Half , 3 c 1 R man * 32 c 2 seg hes also connected to another line
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I dont know if my theory about male + female cousins is correct
But my cousin matches more people than me and sometimes than my.mother on our mutual side .
Also the above relatives all come from a jewish line and even at low cm shared matches show up
I think there were quite a few second cousin marriages
my great grandmother s husband married her neice when she died which complicates things .
The starred match.descends from this couple