Ancestry.com has improved the ability of AncestryDNA to find good matches for Jewish, Hispanic and other ancestries that maybe weren’t so precise before. Here’s the lowdown, quoted liberally from Ancestry.com’s press release:
The problem: Predicting genetic relatives among customers of Jewish and Hispanic descent and some other groups. “In DNA matching, we are looking for pieces of DNA that appear identical between individuals,” says the release. “For genealogy research we’re interested in DNA that’s identical because we’re both descended from a recent common ancestor. We call this identical by descent (IBD). This is what helps us to make new discoveries in finding new relatives, new ancestors, and collaborating on our research.”
“However, we also find pieces of DNA that are identical for another reason. At one extreme we find pieces of DNA that are identical because it is essential for human survival. At the other, we find pieces of DNA that are identical because two people are of the same ethnicity. We call these segments identical by state(IBS) because the piece of DNA is identical for a reason other than a recent common ancestor. This, we have found, often happens in individuals of Jewish descent.”
“The challenge in DNA matching is to tease apart which segments are IBD, and which ones are IBS….Most Jewish customers find that we predict them to be related to nearly every other Jewish customer in the database….Detecting which cousin matches were real and which ones were bogus has always been a challenge for these populations.”
First step toward a solution: “By studying patterns of matches across our more than half a million AncestryDNA customers, we found that in certain places of the genome, thousands of people were being estimated to share DNA with one another–likely a hallmark of a common ethnicity. Our scientific advancements… have allowed us to effectively “pan for gold” in our matches–by throwing out matches that appear to only be IBS, and keeping those that are IBD.”
“While the problem was more pronounced in customers of Jewish and some Hispanic descents, we observed this problem across all ethnic groups. So, all customers will see increased accuracy of their DNA matches, and significantly fewer ‘false’ matches.”
AncestryDNA results with better matches found by this method “will be available in the coming months,” says the release. They plan to email existing customers when results are ready.
Recently my Premium Podcast included a letter from Pat, who was looking for advice on how to return lost or orphaned heirlooms to a family. Ancestry.com had a few family trees posted. Pat didn’t know “whom to contact to get the materials to the most interested, closest family members.” This was my advice–and here’s the inspirational report back.
My advice:
I would first focus on the tree where the tree owner is most closely related to the folks mentioned in the memorabilia. I would probably make copies (depending on what the items are) and offer to all. If I didn’t get a confirmed answer from the first choice in a reasonable time I would offer to my second choice. I would ask the recipient to allow me to pass their contact info on to any others who get around to responding after the fact since it’s everyone’s “family”.
Pat’s response:
“I finally took up the challenge, determined to find a family and offer up the material I had recovered. This material contained old (labeled!) photos, school records, dance cards and letters home to Mom and Dad and seemed potentially quite precious.
It proved difficult to determine which family seemed to have the closest connection, so I decided to offer the material to the person whose Ancestry.com tree contained the most (valid) sources. Fortunately, the tree owner was quick to respond, eager to receive the materials I had to offer. I sent them off and the tree owner is delighted as she is the granddaughter to the original party and believes herself to be the only living descendant of that person!
It feels just right to get those materials back “home”! I encourage other listeners to do the same. It produces a great sense of genealogical balance. So many others have done blessedly wonderful things for me in my research, making it easy to pay it forward just a little bit.
Thank you for the encouragement and the advice. I have loved both podcasts for a number of years now–you are consistently wonderful!”
Thanks, Pat, both for the compliment and for the inspiring message! I love hearing these kinds of stories.
Every Friday, we blog about new genealogy records online. Do any collections below relate to your family history? Please share with your genealogy buddies or with societies that might be interested!
ALABAMA MARRIAGES. Over 700,000 indexed records and accompanying images were added to FamilySearch’s free collection of Alabama county marriage records, 1809-1950. Click here for coverage and a description of the records.
DENMARK PROPERTY RECORDS. Nearly 1.4 million digitized images of deeds and mortgages for South Jutland, Denmark (1572-1928) are newly browsable for free at FamilySearch. Property owner and resident, land transfer dates, and other details of land transactions may be noted. The records are in Danish; the collection description links to tips on reading them.
ENGLAND (STAFFORDSHIRE) PARISH RECORDS. Over 1.2 million records were added to Findmypast’s collection of Staffordshire, England parish registers, an ongoing project to put 6 million records online. Among these records are baptisms, marriages, marriage banns (announcements of intentions to marry) and burials.
OKLAHOMA MAPS AND NEWSPAPERS. The Oklahoma Historical Society has scanned and placed online nearly 2000 maps from among its collection of more than 15,000 maps dating since 1820. Search their full catalog of maps (including Sanborn and other genealogically-helpful maps) here. Additionally, the Gateway to Oklahoma History provides free browsable access to a growing number of digitized newspaper pages from the 1840s to the 1920s.
Keep up on new genealogy records available online by subscribing to our free weekly e-newsletter! You’ll receive a free e-book on Google search strategies for genealogy when you subscribe. Just enter your email address in the box on the upper right hand corner of this page. Thank you for sharing this page with anyone who will want to know about these records!
Has it been awhile since you have perused your DNA matches? Here’s how reviewing your DNA test results regularly can help your family history.
By now, many (if not most) of the genealogists I meet at conferences have had their DNA tested. Good for you! But how often are you checking on your DNA matches? It’s easy to forget about them after that first exciting look at your match list and the flurry of emails that you received. You should be checking in regularly! Here are two great reasons why:
1. You may have new DNA matches.
More and more people are flocking to these companies to have their own DNA tested. Why just this month, AncestryDNA announced they have tested 5 million people. It was only in January of 2017 that they announced they’d hit 3 million, so they’ve added more than two million people so far this year.
What this means is that just as new records are constantly being added online (we cover millions of new additions every Friday on this blog), so are new DNA test profiles. That means you will keep discovering new DNA matches in your list over time. That elusive cousin you’ve been hoping would test may do so tomorrow. A key relative on your dad’s side–maybe on a line with unknown parentage–may have tested three weeks ago, with results now pending. (Genealogy Gems Editor Sunny Morton told me she has had two ground-breaking DNA matches in the past two months alone. Lucky her!)
In AncestryDNA, you can actually sort to view new matches. From your AncestryDNA home page, click View all DNA matches. Then select the filter New by clicking on it.
AncestryDNA will now just show you, in order of degree of relation, any matches you haven’t yet clicked on to review more closely. This can be quite a time-saver. And it can also help remind you of any matches you may have already seen in passing but haven’t closely reviewed.
Another tip: under each of your AncestryDNA matches, you can also see how long it’s been since that person logged in, as shown here.
Perhaps you emailed someone a while back but never heard anything (or didn’t notice a response). If you can see that a person is actively using the site now, it may be worth reaching out again.
2. New tools to review your DNA matches may be available.
While you’ve been busy recently tracking down census records and virtually visiting the courthouses, your DNA testing companies have been busily adding to their offerings. Just recently, MyHeritage revealed a beautiful, streamlined way to review each of your DNA matches. (Remember, it’s free to upload your DNA there. Click here to see how. You can also purchase a test from MyHeritageDNA.)
At MyHeritage, your list of DNA matches shows your genetic relatives who have tested, how much DNA you share, and your possible relationship. The new DNA MatchReview page helps you navigate that information and decide what to do with it. This is what the new MyHeritage DNA Match Review experience looks like:
In the past, I’ve talked on this blog about several excellent (and still-evolving) tools on AncestryDNA, such as:
Competition in the DNA market space means that every company continues to add new and improved features to their site and testing experience. It’s worth checking back to explore what new information and tools might be available.
The Bottom Line
The bottom line here is that your testing company is always working to improve your DNA testing experience. So you should regularly return to your lists of DNA matches at the website of every company where you have tested. If you’re not sure how to use the site, please read some of my DNA posts on this blog and consult my quick reference DNA guides about these testing companies:
Keep checking back on those DNA matches. You never know what discovery might be just a click away.
Disclosure: This post contains affiliate links and Genealogy Gems will be compensated if you make a purchase after clicking on these links (at no additional cost to you). Thank you for supporting Genealogy Gems!
Ancestry.com has improved the ability of AncestryDNA to find good matches for Jewish, Hispanic and other ancestries that maybe weren’t so precise before. Here’s the lowdown, quoted liberally from Ancestry.com’s press release:
