Josef Ber Fine - Sibling - source of info?

Aviad Ben Izhak

By "Correlation between DNA tests from the two sides - I could not find any other possible connection and I was left with the Fin/Fine" - are you referring to DNA matches you had?
And can you share details and analysis?

Avraham Fine

I have two DNA matches cousins.

Aviad Ben Izhak - Correction - were the DNA matches you were referring to your wife (not you, if I read things correctly and she is the descendant))

Or, given Mitchell's comment above "Avraham (Fein) Fine / I have two DNA matches cousins." - was that the DNA you were referring to?

As Lara Diamond explains in her blog https://larasgenealogy.blogspot.com/2018/01/ashkenazic-jewish-share...
"Ashkenazic Jews and those with Ashkenazic ancestry often share significantly more DNA with one another than would be expected because of endogamy; Ashkenazim all descend from a small group of people whose descendants all married one another--so we're all cousins many times over."

Pease elaborate on what "Correlation between DNA tests from the two sides" is actually referring to?

Aviad -
I see Avraham Fine is your father-in-law, the grandson of
Avraham Aharon Fine the great grandson of Josef Ber Fine -- and he did not die until 2018.
Did he do both the FamilyFinder test and YDNA Testing? And do you manage his Kit?

Aviad/Lois,

I am related to Aviad's wife

On which site or sites?
All sites give total shared and longest segment. it takes more work on some than on others to find that info.
For each site, name the site, tell who it is showing you matched to, and How many cM shared, how many cMs in longest segment shared.

If they also give number of segments shared, it may be helpful if you give that as well.
No need to give what they say the relationship is, because that is often wrong, and should usually be ignored, according to everything I have seen about DNA analysis among Ashkenazi Jews.

Geni our cousins:

Tamar Ben Izhak
3rd to 2nd Cousin Twice Removed
Overlap: 71.6 cM
Longest segment: 7.8 cM

Aviad Ben Izhak
3rd or 3rd Cousin Once Removed
Overlap: 85.8 cM
Longest segment: 10.5 cM

By "Geni our cousins:" did you mean this is the DNA info Geni gives

I have a listing of my autosomal DNA matches cousins.

Re: "I have a listing of my autosomal DNA matches cousins." -- you really should add what DNA site the info comes from to your listing.

Check if those figures are from Geni -- and if so, also give us the current info for them from FTDNA.

How about your DNA matches to Fin/Fine/Finn?

How about answering the question I asked?

You also seem to ignore - or are unaware -- as it says here -
https://cruwys.blogspot.com/2016/01/autosomal-dna-triangulation-par...
" Independent research from genetic genealogists suggests that 15 cM is the threshold where segments can be assumed to be IBD with reasonable confidence, whereas only 42% of 7 cM segments are likely to be IBD."
IBD means Identical By Descent - that is, that it comes from a common ancestor.
Smaller segments are probably just accidental matching maybe due to alternating bits from the two versions of that chromosome -- not meaningful.

You never show me your DNA matches cM and longest segment.

I think I have gotten off-topic. I am going back to the Discussion topic.

Aviad Ben Izhak - Did your wife do DNA Testing? Did her father? Did her brothers?
Are one or more of the matches between them and descendants of Yeshayahu Fin what you ard referring to in your comment about "Correlation between DNA tests from the two side" ?
Or ???

It is my understanding that the common ancestor - or more often ancestors. is usually too far back to be discovered.
Just how great were these matches that you felt it was proper on Geni to go " I could not find any other possible connection and I was left with the Fin/Fine" rather than just acknowledge you could not find the connections?
Please givd a whole lot more details.

Aviad Ben Izhak

When asked what info ties Josef to Rabbi Yeshayahu Fin as his brother?
You say here https://www.geni.com/discussions/253027
that "it was a dilemma since I couldn't find any documents that connect them.
I merged the trees based on the following reasons:
1. Correlation between DNA tests from the two sides - I could not find any other possible connection and I was left with the Fin/Fine"

However, see https://www.ancestrylibrary.com/family-tree/person/tree/36586188/pe... on AncestryLibray -
or if you prefer Ancestry https://www.ancestry.com/family-tree/person/tree/36586188/person/22...
According to the folks researching for that Tree
Rabbi Yeshayahu Fin's wife is the daughter of Getsel Gen.
I do not know if that is true or not - but

If Josef is also a descendant of the Gen family - as Geni currently shows - does that suggest a different possible connection?

So now can we please sever that sibling connection that is not based on anything other than your guess that maybe that is responsible for one or more DNA matches you are seeing?
Perhaps replace it with a comment in the Overview of each, with a link to the other, so people can be aware of the hypothesis, but that so far there was no documentation -- especially since you are not willing to share the DNA info for others to analyze.