I recently heard via the Frazer Facebook Page that my cousin Susan had her DNA tested at MyHeritage. That was good news for me as I am interested in DNA – how it shows where we are related and how we share parts of our common ancestors.
How Susan Fits In On the Frazer DNA Tree
I create trees of people who have had their DNA tested. Here is a partial Frazer Tree:
Earlier this year I wrote a Blog about Brenda. She, like Susan and Paul, is my second cousin once removed. She tested at 23andMe. Brenda is also Paul’s first cousin. Susan descends from William Frazer and James Robert Frazer. That section of the Frazer DNA tree is spreading out:
This part of the Frazer tree is interesting to me because I have met many of these people. They would be most familiar with the farm where my great-grandfather James Archibald was raised.
Here is a photo of the family in front of the old family house in Ballindoon. MyHeritage has a new program that colorizes old photos. My great-grandfather James Archibald, Susan’s grandfather William and another brother Richard were in Massachusetts at the time this photo was taken. Brenda’s grandfather Hubert is probably the first one in the back row in the photo above. The girl on the right is Susan Frazer. I wonder if the Susan of this Blog was named after her?
Here are five Frazer Brothers in Boston, Massachusetts:
Susan’s grandfather William is sitting on the right next to my great-grandfather James Archibald Frazer. James was a year and a month older than William.
My DNA Match with Susan
Here is where I match Susan:
I should note that MyHeritage has some matches that are under 7 cM. The first match on Chromosome 1 and the match on Chromosome 5 are in this category. Matches under 7 cM can have a lower probability of being actual matches.
Painting Susan’s DNA
I use an online program called DNA Painter to map out my DNA matches when I can identify the common ancestors. DNA Painter has a default of 7 cM for what it paints, so these two segments would not be painted under normal circumstances. Here is the paternal side of my existing Chromosome 1:
The green part is already taken up by Hartley matches. That means that the small match that I have with Susan on Chromosome 1 cannot be real. The maroon section is a match I have with Kat, so that represents Frazer/McMaster.
Here is my existing mapped Chromosome 5:
Again, my Chromosome map didn’t leave much room for Frazer matching. My siblings have different configurations, so they probably have better matches on Chromosomes 1 and 5. The small maroon match I have at the end of Chromosome 5 is with Brenda from position 173 M to 175 M. My match with Susan above is between 175 M and 177 M. I take that to mean that the match I have with Susan is real, but the reason that it is small is that it is clipped off on the end of the Chromosome. That means that I will want to add this match in.
In order to paint Susan’s results onto my tree, I first download the matches. They look like this:
The Location numbers are important. This shows what I was calling the position numbers above. So rounding off, Chromosome 5 starts off at 175 million and ends at 178 million.
At DNA Painter, I choose paint a new match. Then I am changing the default from 7 to 6 cM:
I copy the results into the blank space and save the information. I choose Frazer/McMaster for the common ancestors.
Next I have to delete the Chromosome 1 match as that doesn’t fit.
One thing I like to look at is my percent painted. This is overall:
This is just my paternal side:
My numbers are creeping up. In my Blog about Brenda, my overall percent painted went up from 41% to 42%. Now I am at 43%. When I was mapping Kat, she brought be up from 50% paternally mapped to 51%. Now I am at 52%.
More About Susan’s DNA
There are a lot of different directions I could go from her. I could look at my siblings’ DNA matches to Susan. Or I could look at my cousin Paul’s matches to Susan. Or I could look at shared matches to Susan.
My Siblings and Susan
Here is how I matched Susan at MyHeritage:
This is a pretty good match for a second cousin once removed. Actually, there is a new report out:
122 cM is typical for a second cousin once removed. In my previous Blog, I mentioned my Frazer third cousin Karen. I didn’t match her at all which is within the possibilities but below the average of 73 cM.
Here are how my other siblings match Susan:
- Heidi – 202 cM
- Sharon – 143.5 cM
- Jon – 113.0 cM
- Lori – 154.0 cM
- Jim – 139.7
These are all above average – except for Jon.
My Second Cousin Once Removed Paul
I manage my cousin Paul’s DNA also. He has a huge match with Susan:
This is about 200 cM above average. Susan is Paul’s top match at MyHeritage. As this is as good as it gets, let’s take a look:
All of Susan and Paul’s matches are between Chromosomes 1 and 15.
Here is what I have for Paul so far:
I was only interested in Paul’s paternal side as that is where we match. Paul is about 12% painted on his paternal side. The key shows that George Frazer and Margaret McMaster DNA are in green. That is the DNA that Susan and Paul share.
After I paint Susan’s matches to Paul’s profile, this is what I get:
That is quite a jump.
Here is Paul’s new profile:
Some More DNA Detail
Susan and Paul have a huge match on Chromosome 7. Here is the detail:
There is another Susan who matches Paul there also, but a smaller match. Here is what happened:
Susan, Susan and Paul (sorry left out Paul in the diagram above), get their Chromosome 7 DNA from James and Violet Frazer. However, because Paul and the Susan of this Blog share overlapping Chromosome 7 DNA, that DNA must have come from George Frazer and not Margaret McMaster. The one catch is that the three must triangulate. That means that the Susan in the yellow box needs to match the Susan in the blue box. I assume that to be true, but because these two Susans tested at different companies, I don’t know for sure.
I’ll do that in DNA Painter:
A Complicated Chromosome 12 for Paul
On the left, Paul matches Emily and John. John has McMaster ancestry:
Paul and John from Australia show as 4th cousins.
MyHeritage shows that Paul, Emily and John triangulate:
The yellow match is between John and Paul. The red match is between Paul and Emily. The circle around the two indicates triangulation, so John must match Emily. That also means that the DNA match that Emily and Paul share must have come from the McMaster side:
Even more speificially, the DNA came from James McMaster as opposed to his wife Fanny McMaster.
Joanna, Susan and BV
Here is another case where it would be helpful if Susan was to upload her DNA results to Gedmatch:
I have written many Blogs about BV as the match is very interesting.
BV and Paul have the common ancestors of William McMaster and Margaret Frazer. This couple left Ireland for Canada with their children. Except for Fanny McMaster. She stayed back in Kilmactranny Parish, County Sligo and married James McMaster.
So where does Joanna fit in? It appears that she could triangulate with BV. Unfortunately, I don’t see BV at Gedmatch anymore, so she may not have re-signed when the ownership changed hands. My previous note says that Joanna does not triangulate with BV:
That would probably make sense as Joanna has no known McMaster ancestors.
John, Keith and Susan
Here is an even more confusing situation on Chromosome 12:
Susan overlaps with both John and Keith. John and Keith both have McMaster ancestry, but from different lines. The other problem is that I have never figured out how the two McMaster Lines fit together. I did make a guess here:
Probably the confusion is on the McMaster side. The matches John and Keith above are both McMaster matches.
Summary and Conclusion
- I have been hoping for quite a while that one of my Irish Frazer relatives would have their tested. Susan did this and I am glad to see the results.
- Susan matches most of my family above average as well as my cousin Paul. This may partly be due to the extra McMaster connections
- I was able to narrow down from which of our ancestors our DNA matches come from based on matches with other Frazer or McMaster relatives.
- Some aspects of the DNA matching was confusing. This is probably due to the fact that we don’t know who all our ancestors were and the ones that we do know tended to marry relatives in several cases.
- If Susan uploads her DNA to Gedmatch, it would be possible to compare her matches with other Frazer relatives who tested at different companies.
- I like seeing how the old Frazer photos look with added color.