Archive | 2019

More Clustering Tools!

May7

There are many new ways to make those beautiful cluster diagrams of how your DNA relatives are related to each other. Both MyHeritage and Gedmatch (tier 1) now have clustering tools (Thank you Evert-Jan Blom). These charts give you an easy way to see your family groupings and can help you figure out a new match since each cluster typically represents a common ancestral couple. Click here for my previous posts on clustering which is based on the Leeds method.

My Dads Clusters at Gedmatch GENESIS

The GEDmatch cluster diagram shown above includes the total cM each match shares with you as well as their name and kit number. Click on the “i” in a circle for a pop up box with the user information which includes an email address and whether a GEDmatch tree is linked to this kit. Any of the colored boxes on the graph can be clicked to open a window for a one to one comparison between those two people. Plus you can check the boxes in the select column for any number of matches and then submit them to the multi kit analysis using the orange “Submit to Multi Kit Analysis” button above the name column on the left. To get this clustering tool all you need is a Tier 1 membership and a kit number. It is listed at the bottom of the Tier 1 tools. Personally I like to raise the thresholds to a top 200 and a minimum of 20, but try the defaults first and see what is best for you.

One of the nice things about the cluster output from Genetic Affairs is that it lists all the cluster members in groups below the graph with the number of people in each tree (clickable) and any notes you made on the Ancestry profile. The MyHeritage version also has those cluster lists with your notes and the tree sizes; and of course they are clickable to the match (which may even have a theory of family relativity for you!) and the match’s tree. The down side is that you cannot select the parameters for the clustering yourself, they are preset. Possibly only power users care about that!

Extract from my list of matches in each cluster at MyHeritage

An exciting new feature for those looking for one unknown parent or grandparent is the ability to cluster just your starred Ancestry matches when using the clustering tool at Genetic Affairs.  Click here for my previous post about that tool. There now is a checkbox on the page where you select your parameters for getting a cluster analysis.

Newat Genetic Affairs is the checkbox for only starred matches when starting a cluster analysis

It is a common practice to star (mark as favorites) the matches that seem to be from the family of an unknown parent or grandparent at Ancestry. Usually these are determined by looking at who matches or doesn’t match a close relative like a half sibling or else by eliminating matches from the known side. Sometimes you can use ethnicity. I am currently helping someone where the known side is Jewish and the unknown side is Italian and those are easy to separate.

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DNA2Tree: Build Trees from DNA Matches

Apr30

Since I do not have an iPad, iPhone or any other Apple device, I could not evaluate this product. It sounds like a real game changer for adoptee searches! Like the DNAgedcom.com client, it finds common ancestors and can make cluster charts. However it goes a step further and shows you the common ancestors for each cluster and can build those ancestor’s trees for you! Here is a guest post from a beta tester. – Kitty

DNA2Tree: New Adoptee Search Software by Jason Schneir

There are approximately 120,000 adoptions each year. When these adoptees become adults a substantial percentage want to find out more about their biological parents. Unfortunately, state privacy laws often stand in the way of identifying and learning about their biological relatives.

DNA testing has proved a boon to adoptees wishing to find their biological family. In the best case an adoptee is tested and the adoptee’s biological family is also tested. For those lucky individuals, finding their biological relative is just a matter of looking at their match list and seeing a close match. No skill is needed.

For the majority of adoptees, close biological family is not DNA tested. Fortunately, there are DNA search techniques that can find biological parents from other tested relatives. Unfortunately, this methodology takes considerable skill and practice. For that reason, many adoptees find a geeky friend, search angel, or paid genetic genealogist to help them.

In December 2018, my wife Beth and I joined SearchAngels.org and watched every video we could find on using DNA search techniques to find an adoptee’s parents. We were excited to have the opportunity to help adoptees, but were very nervous about whether we could be successful. To our great joy, we solved over ten adoptee search angel cases in our first four months. Beth worked with me on most of my cases – especially the successful ones! A key element contributing to our success was a new IOS app, DNA2Tree, which runs on an Apple iPhone.

Screeen Shot from SearchAngels.org – the Adoptee Searches page on the Services menu

We chose our first case carefully in the hope it would be easy. There was a first cousin match and the mother was already found – we just needed to find the father. Almost immediately our simple case fell apart and the complexities began to mount.

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Preserving your Family History on a World Tree

Apr26

A heartbreaking moment for any family historian is when you discover that your late genealogist cousin’s wife has shredded all his papers. This actually happened in my family. I can only hope that all the genealogical information was passed on to his children first. I think he had long since given me copies of most of it.

Please don’t let this happen to your work. A good preservation solution is to contribute your research to at least one of the online collaborative world trees.

Several years ago I did a blog post on the advantages of using these world trees (click here) and created a comparison sheet of the big three world trees (updated version at the end of this article): FamilySearch.org, GENI.com and WIKItree.com

I also did a Rootstech talk on this topic (click here for those slides). There have been a few changes since then, mainly around DNA and whether or not you can upload a GEDcom.

DNA connections

DNA features abound at WIKItree.com – you can connect your WIKItree profiles to GEDmatch by putting their kit numbers in. This causes the GEDmatch one-to-many tool to display the blue word Wiki which links to your compact tree. So even though it is the smallest of the three world trees, it may be best for genetic genealogists. Another WIKItree feature is that you do not need to login to see trees and profiles so it is great for sending tree links to new cousins. Plus it shows X and Y descendancy pathways.

GENI can link to DNA profiles at family tree DNA and will even display haplogroups on the person’s page. When you and your DNA matches have your family trees on GENI, you can quickly see how you are related. Click here for the blog post I did on how to link your ftDNA reults to GENI.

example of DNA display at GENI

FamilySearch does not have any DNA features yet but surely they will eventually incorporate something.

Adding GEDCOMs

The big news is that GENI now has a GEDcom uploading capability again. Whereas WIKItree has dialed back on the GEDcom uploads but still has good functionality.
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Make a combined DNA kit for yourself

Apr7

Have you ever wanted to make a kit combining all your DNA tests at the different companies so as to get the most SNPs for comparisons? Well GEDmatch provides that for paid members. So of course I made one of these superkits for myself! I combined my LivingDNA with my V3 23andme and my current Ancestry kit. Now to investigate what I have gained from this.

The first thing I did was compare this new kit to my recent Ancestry kit. All looked fine. It has the expected small differences, many of which disappeared (including the black lines) when I checked the prevent hard breaks box on the form. The older 23andme kit comparison had more black spots and mismatches.

My next thought about my new superkit was that I might get a better comparison to cousins who tested more recently at 23andme but none of them have uploaded to GENESIS yet. So I checked how my comparison to an Ancestry tester, my second cousin once removed Jeanie, looked. The superkit gets the same result as my recent Ancestry kit. When I compared her to my 23andme kit and my Living DNA kit however, there were small differences.

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Ancestry Improves the Potential Parent Box

Mar30

Have you seen those boxes with green silhouette images in your tree titled Potential Father and Potential Mother? This feature has recently been greatly improved.

When you click on one of these boxes, Ancestry tells you that it has perhaps found that parent, like the image to the right, and it offers you two buttons, one to review the details and another to add this person manually. Clicking Add Manually just pops up a box with empty slots for you to add that person.

Review Details used to only show you the family information for the person that Ancestry had found, but not where it was from. Sometimes, if it looked accurate, I would click the “Yes” green button to add it for a quick and dirty (Q&D) tree I was making to search for an adoptee’s family. Sometimes it was easy to reject when the family information did not match. However mainly I would go to the hints for that person from their profile in my tree to see if I could figure out the possible parent from there. All in all, the Potential Parent box was only a little bit useful.

So how have they improved this?

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