Low cM matches that were deleted by Ancestry

[ozdelver]

Hi,
I have come across a name of a possible DNA match from a family line I am keen to track down, as it will help identify a birth father for an adoptee. However, I can no longer find it in my list of matches, so I think it may have been in the 6-8cM block that Ancestry deleted. My understanding is that it is gone forever.
If my results are uploaded to another Genie site will they give me matches down to that level? Does anyone know what the cut-off level is on other sites?
Or would I be better off uploading to Gedcom and seeking a match there?
Thanks

[Ruskie]

Not sure if this is up to date but it might help:

https://isogg.org/wiki/Autosomal_DNA_match_thresholds

[familydar]

What you upload to other sites is your raw data, not the original site's interpretation of it, so I would say that the cut-offs could be different, you won't know till you try.  Upload to as many as possible for the best coverage, and if you've tested with more than one company there are tools out there to merge your own tests and fill in some of the gaps (what gedmatch call overlap)

[Gadget]

If they're only on Ancestry and not on other sites and if you have the Ancestry name of the person, why not look them up on the member search

https://www.ancestry.co.uk/community/membersearch

and send them a message.

Gadget

[ozdelver]

Hi all,
Thanks for the responses.

After reading the article recommended by Gadget, I think my best bet will be to upload to Gedcom and do a one-on-one comparison. I have the Ancestry match's username, and a related third party who has worked with her, and is also using Gedcom to compare her matches. I will get onto her and see where we can go from here.

[guest189040]

A low cM does signify quite a distance in the past before a common ancestor is likely to be found, it is all on probabilities.

There is also no guarantee that the match is going to use a recognisable visible name elsewhere or even that they will have uploaded to another website.

I know it is after the horse has bolted for you but before Ancestry removed the low cM matches I went through hundreds of matches up to 9 cM and gave those with a sizeable tree or a user name that I recognised a Group colour coded marker labelled Research Further, I still have access to those low cM matches.

[Janethepain]

A low cM match, does not always signify a very distant ancestor! I have a lowest possible match, at 6cm, that I tagged so it did not disappear. He is my 2nd cousin 2 times removed! His grandfather and I are second cousins. All 3 of us are alive, as it were

[guest189040]

A low cM match, does not always signify a very distant ancestor! I have a lowest possible match, at 6cm, that I tagged so it did not disappear. He is my 2nd cousin 2 times removed! His grandfather and I are second cousins. All 3 of us are alive, as it were

True 6cM giving a 2C2R then the probability of it being this is way less than 1%.

As opposed to a 6cM giving a 6C where the probability of it being this is up at 64%

[brigidmac]

You can also contact people who have the common ancestors and the descendats you can  remember on their tree
Regardless of wether they have tested.dna or not they may know other family members who.have tested