I just finished 2 Blogs on the Henry Dicks Line which is a parallel line to my wife’s Christopher Dicks Line. Then I heard that Marilyn had her brother tested. Marilyn is on 2 different Christopher Dicks Lines.
Henry Dicks Line Updates
In other news, I found out that Eric’s dad, Claude, has been tested for DNA. What is more it is Claude that Eric believes to be likely related on the Henry Dicks Line. The confusing part was that Eric was in a Triangulation Group with my mother in law Joan and Joan’s half Aunt Eshter. So isn’t that confusing. That means that for now (as I understand it) Eric’s TG with my wife’s side of the family may not refer back to a Dicks ancestor. I’ll take Eric off the TG Matrix for now and put his father into the Dicks family comparisons. The good news is that there are a lot of Dicks descendants around. The bad news is that is is difficult to keep track of all of them.
I also got this note recently from Crystal from the Henry Dicks Line:
In looking at Ivy’s ancestors, We also share another ancestor. We are both related to The Vatchers as well as the Matthews and the Dicks. Burgeo is so small that you bound to be related in 2 or 3 different ways going way back!
In addition, Crystal tells me she has extra Dicks DNA on her dad’s side as shown here on this Henry Dicks Chart. Her mom’s side of the Dicks line leads up to the first pink rectangle. I have Crystal in a slightly different green to make sure I don’t forget she is in two Dicks Lines.
Back to the Christopher Dicks Line and Marilyn’s Brother
Here is an updated Christopher Line Chart. All I did was add Marilyn’s brother Howie to an old chart I had:
The chart is getting tiny. So I will point out that Marilyn and her brother are on the Joyce and Cran Lines. The Joyce Line is the large Line to the right of center and the Cran Line is on the right. That reminds me of something I brought up in an email. My wife’s 1/2 great Aunt Esther has 2 Dicks Lines also. One is through Christopher. The other one she doesn’t share with Joan due to the 1/2 part. However, I noted that Esther is in 3 TGs that she does not share with Joan. In those 3, she shares all 3 of them with people from the Adams Line. The Adams line is the one on the left.
These are the non-Joan, Esther TGs. They all have Nelson in them and two of them have Sandra. I just need to check to see if Esther’s other Dicks ancestor might fit in. “Hi Sandra, any room for Esther’s ancestor?”
However, when I look at Esther’s tree, this is what I see:
Assuming that this tree is right, there is no room for Jane Ann Dicks in Sandra’s tree. That is because Jane Ann was b. 1841 and Sandra descends from Elizabeth Dicks b. 1809 who married Thomas Adams. Sandra would have descended from a male Dicks. I will leave this as a mystery for now. Perhaps the 3 TGs above between Esther and Nelson are non-Dicks TGs.
Marilyn’s Brother and Claude
Now I will compare all those who have Dicks ancestors. I will look especially at Marilyn’s brother and Claude (Eric’s) dad who may have Dicks ancestors. This resulted in 754 lines of matches. However, each match is listed twice, so there are only 377 matches. A lot of these matches are between close relatives. There would be a lot more matches if I had included Eric and Larry in the mix.
Here we have a complicated stretch of DNA:
This may take a bit of explaining. Previously, I had this as two TGs:
- TG2D (180-192) with Sandra, Nelson, Denise and Joan
- TG2E (201-209) with Sandra, Nelson and Marilyn
I see now that Denise should have been in the TG2E. Now we can add Howie to TG2E also. There is another way to look at this TG. That would be that it is a larger TG and that Joan’s DNA didn’t extend to the higher end of it and Marilyn and Howie’s DNA didn’t extend to the first part of it. A few other things:
- Kenneth and Judy are not in this TG. As they both descend from a Miller line, that would be a likely source of their DNA match.
- Kirsten also does not appear to be in the TG. I’m not sure how to explain the matches between Kirsten and Marilyn and Kirsten and Howie. The simplest explanation would be that Marilyn and Howie are in the TG through their father’s side and match Kirsten on their mother’s side. However, I don’t know enough about everyone’s genealogy to know if that is feasible.
Here is the larger TG drawn out:
This was a little tricky to draw. What this is supposed to represent is that Sandra, Nelson and Denise are in the larger TG. Joan (in yellow) is in the first part of it and Marilyn and Howie are in the second part or it. I guessed that Marilyn and Howie might be in the box on the right as none of the other four Joyce line descendants are in this TG.
I can give a likely reason Joan dropped out of this TG and Marilyn and Howie dropped in. It has to do with crossovers. Let’s look at Joan first. Joan has 2 copies of her Chromosome 2 as we all do. One is maternal and one is paternal. Joan’s Dicks DNA comes from her maternal side. Joan’s maternal DNA is made up of her mother’s two parents DNA joined together (recombined). Those 2 parents were Joan’s grandfather Frederick Upshall and grandmother Daly. Joan’s maternal Chromosome 2 is alternating between Upshall (whose mother was a Dicks) and Daly.
Here is a map of my actual Chromosome 2 showing the alternating pattern:
This chart was created by M MacNeill [firstname.lastname@example.org]. It is possible to map this out if you have 2 parents tested, or if you have one tested and 2 or 3 siblings tested. There is even a way to map your grandparents with siblings and no parent tested. In the case above. Light blue represents my maternal grandmother and dark blue is my maternal grandfather. The light red is my paternal grandmother and the dark red is my paternal grandfather. Everyone’s DNA follows the same type of pattern. The actual configurations where the changes are will be different. The place where a color goes from one to another is called a crossover. Sometimes there is no crossover or recombination and you will have all your DNA on a particular copy (maternal or paternal) of a chromosome from one grandparent instead of two.
Back to the TG at Chromosome 2:
Notice what Joan’s matches with Sandra, Denise and Nelson have in common: they all end around 192M. That should be the place where Joan’s DNA switches from her grandpa Upshall to grandma Daly.
Here is Joan’s Chromosome 2:
This shows her matches with:
To the right of the one blue bar on top of the 2 green bars is where Joan drops out of this Dicks TG. I can almost map Joan’s Maternal grandparents from this gedmatch chromosome broswer. Here is my guess:
A few notes:
- Joan’s Daly grandmother is not from Newfoundland
- Another possibility could be that the Upshall segment could extend to Joan’s matches with #2, 3, and 4, eliminating the first Daly segment I have.
Another interesting question is: Why doesn’t Esther match Joan where Joan matches Nelson, Sandra, and Denise? The answer would be that Esther has Upshall DNA in this area rather than Dicks and Joan got Dicks DNA in this area. It’s a bit confusing as you have to picture what is happening on each side of the match between Esther and Joan.
Marilyn and Howie’s appearance in TG2
I’d like to bring up an interesting point about siblings. Siblings represent the only relationship where you will find appreciable FIRs. FIRs are Fully Identical regions. Here is Marilyn’s match with her brother Howie on Chromosome 2:
This shows that Marilyn and Howie match each other along the blue line. That is from 0 to 147M. Then they don’t match from 147M to 182M. Then they match again to the end of the Chromosome 2. Above the blue bar are green and yellow areas. The yellow is how we match everyone other than siblings. The green is the FIR. That means a double match. As siblings, Marilyn and Howie share all their 4 grandparents: 2 Paternal and 2 Maternal grandparents. Looking at Marilyn and Howie’s Chromosome 2, I can know what the green, yellow and red regions mean:
- Green – Marilyn and Howie both share a maternal grandparent and a paternal one. We just can’t tell which one right now.
- Yellow – Marilyn and Howie both share a maternal grandparent or a paternal grandparent. Again we can’t tell which one right now.
- Red – Marilyn and Howie share the DNA of neither their maternal nor paternal grandparent.
Here is the 2nd part of the TG at Chromosome 2:
The appearance of Marilyn and Howie in this TG is clear: 201M. I just found out recently that there is a way to expand matches to great detail as shown in the Gedmatch Chromosome Broswer. Here is Marilyn and Howie expanded at around 201M:
This is difficult to see. The number in the middle is 200M. That is one tick mark away from 201 where Marilyn and Howie enter the TG. Another interesting thing is that Marilyn (Molly) above gets out of the TG at 208 and Howie gets out between 212 and 218. What does all this mean?
- Based on the expanded view, Marilyn and Howie are FIR from a little after 195M. They jump into the TG at 201. FIR means that Marilyn and Howie share the same 2 grandparents – one maternal and one paternal. However, without the comparison of another sibling, this is difficult to see. I am assuming that from 195 to 201M, Marilyn and Howie share the same 2 grandparents, but not necessarily the same two as after 201M. At 201M, Marilyn and Howie both get their DNA from their paternal grandmother Sarah Priscilla. Sarah is the one with Dicks DNA.
- At 208M, Marilyn drops out of the TG before Howie.
Here is an expanded view of an already expanded view of Marilyn and Howie at 208M:
Every little tick mark [^] is 1M. So 2 ^’s before 210M is 208M. That is where Marilyn and Howie go from FIR to HIR. An HIR is a Half Identical Region. That means that Marilyn and Howie match one grandparent (on the maternal or paternal side) and they don’t match the other grandparent (on the opposite of the maternal or paternal side where they do match). This is easier to show by mapping it out:
It is clear that from 201 to 208, that Marilyn and Howie are in a TG. They are also FIR. That means that they have 2 grandparents the same (one paternal and one maternal, here represented by blue and yellow). The TG identifies the paternal grandparent as Sarah. She is the one that descends from the Dicks family. We don’t know which Maternal grandparent that Marilyn and Howie got their DNA from. We just know that it is the same grandparent.
At 208M, two things happen. Marilyn exits the TG and is now in an HIR with her brother Howie. HIR means that Marilyn gets her DNA from one grandparent (on the maternal or paternal side). On the other side from where she gets her DNA, she doesn’t get her DNA from the other. In this case, that means that she continues to match the same maternal grandparent and switches the paternal grandparent that she gets her DNA from from Sarah to Jesse.
All this is to say that it is helpful to have a sibling or more tested.
Like the TG at Chromosome 2, the TG that Howie is in at Chromosome 12 is not new. It has been described previously. Here is what it looks like in a spreadsheet:
The difference is that there is a Joyce Line TG within an apparent Dicks TG (in gold). Also within the gold TG there are single matches of people from the Henry Dicks Line. That could mean a few things:
- The green matches are in non-Dicks lines
- The green matches are with Dicks lines. If that is true, that would mean that the gold TG must point back to the wife of Christopher Dicks who I have as Margaret b. 1789.
In TG2, I had missed Denise in part of the TG. Previously I had missed Pauline in this one. Part of the reason I may have missed Denise in TG2 is that her match with Marilyn was less than 7 cM so didn’t show up at Gedmatch at threshold levels. In this case Marilyn doesn’t match Pauline, because she drops out of the TG right around the spot where Pauline joins in the TG (127M).
Here is Joan compared with Esther, Howie, Marilyn and Pauline:
In the above browser image, Joan’s maternal grandparent mapping would likely go Upshall, Daly, Upshall. One can see where Howie and Marilyn jump into the TG in the 2 yellow bars. You can also see how Marilyn (#3) jumps out of the TG on the right and Pauline (#4) jumps in (green bar).
For comparison, I will show the same matches from Esther’s point of view:
Esther’s view has to be exactly the same for #1 as they are comparing the same 2 people (Joan and Esther). Esther’s view gives a crisper indication of Marilyn’s crossover.
Chromosome 12 is shorter than Chromosome 2, so it should be simpler. Here are Marilyn and Howie compared at Chromosome 12:
Marilyn and Howie have 3 HIR’s, one FIR and one area where they don’t match either of their grandparents. In that area where they don’t match, if Marilyn got her DNA from her her maternal grandmother and paternal grandfather, for example, it would mean that Howie would have to get his DNA from his maternal grandfather and paternal grandmother.
We have more detail on the positions from the TG:
Howie and Molly jump into the TG at 114M. Molly jumps out at 126M and Howie jumps out at 132M. Actually, he had to as that is the end of the Chromosome!
Looking at Marilyn and Howie’s expanded view of Chromosome 12, their FIR starts at 101M. That switches to an HIR at about 126.5M. That corresponds where Marilyn gets out of the TG. It also corresponds where the green goes to yellow in the Gedmatch Chromosome browser in the image above.
This looks similar to the Chromosome 2 map of Marilyn and Howie. This time I was a bit more brave due to my experience with Chromosome 2 and mapped their DNA to the beginning of their HIR rather than just to the beginning of where they jumped into the TG (113M). The reason for this is for there to be a change at 113M would require a double crossover for these two which is unlikely. Another note is that the yellow grandparent in this example may not be the same as the yellow one in Chromosome 2. It is just meant to represent one of the maternal grandparents in each case.
One More Question On Crossovers
I’m learning this as I go along. I had determined a crossover above at 126.5M above where one sibling left the TG and the other stayed in. However, I did not have a crossover at 114M where both siblings entered the TG. Why is that? I had a crossover at 126.5 because the chromosome browser verified that the siblings were switching from a FIR to an HIR at 126.5. To me, this verified the crossover in conjunction with the change in TG at the same location. At 114M, there was no change:
Above is the close-up view of Marilyn’s match to Howie on Chromosome 12 between positions 110 and 120M. The whole area on either side of 114M is FIR. That likely indicates no crossover at Marilyn’s and Howie’s grandparent level. However, it was Marilyn’s great grandmother Bertha Joyce that had her grandparents’ Dicks and Joyce DNA recombining into a crossover. It is likely that this TG represents the DNA that Bertha Joyce received from her grandparents probably sometime around the American Civil War. I note that the TG that I looked at above at Chromosome 2 followed the same pattern. The crossover was where one sibling left the TG and the other remained. Where the two siblings started in the TG, there was no change in the FIR region to an HIR.
So the answer is that there was a crossover at some point at position 114M, but quite a while before the time period that we are looking at here. So it is hidden in my map above.
Dicks TG Matrix Update
- Here I took out Eric as his father Claude (who is believed to be the one descended from the Dicks family) was not found to be in a TG. Eric was in a TG with Joan and Esther, but that must have been on his maternal (non-Dicks) side.
- I didn’t add 2 extra columns for Howie, but put him in the appropriate boxes where the existing TGs for his sister Marilyn were.
- I added Denise to TG2E and Pauline to TG12B. That was an important addition for Marilyn and Howie as it seem to indicate that their Dicks DNA comes from the Joyce rather than the Cran Line in this case. Recall that in TG2E, I was suggesting that this might represent the Cran line for Marilyn and Howie.
The All-Dicks Comparison
The top left box are the Christopher Line descendants. The bottom right box is the Henry Dicks Line descendants. This now includes Claude and Howie. For an interesting comparison, run down the two columns of Molly and Howie and see how the total cMs of their matches differ.
Summary and Conclusions
- I didn’t add any new TGs by the addition of Marilyn’s brother Howie and Eric’s father Claude.
- Marilyn and Howie are the first known Dicks descendant siblings to have their DNA tested. So I took advantage of that to explain how crossovers work and how they are important in mapping DNA.
- The combination of the sibling comparisons and TGs made it possible to partially map two of Marilyn’s and Howie’s paternal grandparents on portions of Chromosomes 2 and 12.
- I also showed a likely scenario for Joan’s crossover point within a TG which would lead to mapping segments that she received from her maternal grandparents
- I clarified a few issues and refined the Dicks Triangulation Group Matrix