Tuesday, February 2, 2016
I misunderstood the Circles at AncestryDNA. I had thought they were reserved for direct line ancestors. Apparently they can include aunts, uncles, cousins and their spouses; if they are in your tree. I just found a Circle for a several times great-aunt. When I click on her Circle I'm listed as a potential descendant. This can cause confusion if you don't read all the descriptions carefully. I'm not included in the Circle though.
To me it would make more sense to include non direct line ancestors in NAD's. The Circles should form for the strongest links. If they are extended beyond that to the wife of a 3rd Cousin 5x removed, for example, then we are getting into some very weak associations. Couldn't ancestry just exclude certain relationships from Circles?
Friday, January 15, 2016
|Fred Mason's sons Edwin and Frank|
I've thrown out more requests to compare results to close matches relating to these men at AncestryDNA. No answers yet. If these cousins would compare it would certainly help fill in my charts.
|Don't have a picture of Fred Mason|
He died in 1917 these are his children
My Grandmother far left
According to Ancestry those with the triangulation on chromosome 12 only share about 7 cM's; according to GEDmatch they share 14 cM's. They match both places. The 7 cM difference is common between GEDmatch and AncestryDNA. As I said before I'm only using the segments of paper trail cousins.
This is where I am with my Grandfather Charles Lynn Forgey's chart. I am using cousins and my Mother's results to fill this in. If the 70 cM and over matches at AncestryDNA would compare I could definitely make great progress on this chart.
Saturday, January 9, 2016
There has been some debate at the ISOGG group about whether triangulation is possible beyond 4 generations. For triangulation to work the segments we are comparing would need to go back to a common ancestors within the genealogical time frame. The DNA testing companies estimate the regions of the genome they are comparing contain uncommon SNP's. They estimate when you share segments with matches that generally the relationship isn't much farther back than 6 or 7 generations. If this is the case then triangulation is possible if both you and your match have a tree that is fairly complete to 6 generations. Even if it isn't complete you can reasonably draw inferences about what the rest of the tree might look like. If someone is half Italian and you haven't found any Italian ancestors you can easily eliminate half that persons tree. In other cases in the US, for example. you can reasonably eliminate possible ancestor matches based on the region of the country they were from.
Some are questioning the age of the SNP's we inherit. Are they 200 or 300 years old or are they ancient, 500 years old or older? We generally share very little DNA with ancestors who lived 200 years ago. It's hard to believe that we would continue to share SNP's from 500 years. If we do it sounds like it would be a very small number and the amount of DNA would be very small, and would not be considered a match by the testing companies.
Some cite endogamy as the reason 500 year old and older SNP's persist. There is a high degree of interrelatedness among those of us who have Colonial American ancestors. Americans whose families remained in the same eastern seaboard areas since Colonial times tend to have problems with endogamy when they DNA test. Although those living in urban eastern seaboard areas tend to be more ethnically mixed as waves of immigrants settled these areas. The amount of interrelatedness among Americans varies. Even if someones ancestors lived in the same rural area for hundreds of year it doesn't mean they are highly genetically related to their neighbors. You might also see more recent immigrant groups, like the Italians, coming in and adding to the gene pool in rural areas. Many Scandinavians settled in the Midwest adding their own genes to the mix. Many of us on the West Coast of the US have Hispanic or Asian genes. This dilutes our Colonial American gene percentage.
Most of my Colonial American ancestors were Scot-Irish and German. I can pinpoint exactly when they came to the US in the 1700's. As for some of the others it's possible some of these lines go back to the first settlement of Jamestown? Could I be mistaken and some of the segments I've named actually go back to another ancestor who settled early in Jamestown? Or even go back to an ancestor back in England? I would think the odds are low considering the odds of actually still having a measurable amount of DNA, from that far, which would be enough to signal a match.
So why do we have so many matches piling up on one segment. Would sound like these are old SNP's that many people inherited and are common to certain ethnic population? Or maybe there are other reasons? Most all of my matches at AncestryDNA are from the same family group Roller/Zirkle/Roush. These families tended to marry close cousins because they lived in the isolated Shenandoah Valley, and I'm sure there were language, religious and cultural differences. This endogamy means that their descendants potentially have retained more of their DNA. My family never stayed in the same area for more than a generation or two. They didn't marry close cousins. Since we have inherited small amounts of DNA from our German ethnicity Roller/Zirkle/ Roush families we tend to match this family group more than any other group. We tend to get a match with one of those families once a week. We have 5 DNA Circles for these families. The likely reason for this is that our matches have ancestors who married cousins in this family group. Often I will see, for instance, Zirkle and Roush on their tree a couple times at the very least. These are our ancestors from around 250 years ago. We match so often because many of these families lived in the Shenandoah Valley for generations, and continue to live there, so these genes continue to cycle through the population. They have more DNA from these ancestors to potentially match with.
Another reason for pileups is large numbers of descendants. In America families tended to be large before urbanization. The survival of children into adulthood tended higher than in Europe. American couples living in 19th Century America have large numbers of descendants living today.
America was settled during the genealogical time frame so this should mean that triangulation is possible. All of these facts I mentioned mean you need to build your tree out as far as possible, and compare with as many cousins as possible. The odds of sharing the same segments with the descendants of the same ancestors may not be statistically high. Considering the number of descendants some ancestors left I think it is statistically possible. The major problem I have is the lack of records dating back to the 1600's in the Mid-Atlantic and Southern States. Otherwise I believe triangulation is useful and accurate if other parties have reasonably complete trees. Odds are reasonably good the segments don't go back to the 1600's. Plus, in my case, only 31% of my ancestry goes back to Colonial America. Much of that ancestry is already traced back to the immigrants.
Could large proportions of the early population of American have shared recent ancestors because they came in a mass migration? I believe the early population of the Mid-Atlantic states and South was more varied? New England may have had a more homogeneous population coming from the same stock in England.
I'm a believer in Triangulation. The more testers we have the more opportunities we will have to make connections through Triangulation.
Without triangulation DNA testing will be useless for Americans with a high degrees of interrelatedness. How will they separate their lines?
Monday, January 4, 2016
|Mombacho Volcano as seen from Granada|
I was in Nicaragua from December 7th to the 12th site seeing, and researching at the archives in Granada, Nicaragua. It was a fabulous trip! I loved it there. Beautiful scenery, lush and green. Exotic animals, such as the loud howler monkeys I heard while touring a volcano. Warm weather. It was in the 90's during the day and the 70's at night. Beautiful Colonial adobe architecture in Granada. I stayed one night in Managua and 4 nights in Granada. My mother, Edna Forgey-Kapple, was born in Granada, Nicaragua to a Nicaraguan mother and a US Marine father.
I had very little information about the Nicaraguan side of my family. The only info I had came from my grandmother Graciela Del Castillo's death certificate, some information about the siblings of my grandmother, and a will she made which named a cousin. The will didn't give the degree of cousin he was. I matched a great-granddaughter of this cousin, Francisco Alvarado Granizo, at AncestryDNA. Until the recent addition of the total cM numbers at AncestryDNA I didn't know how much DNA we shared with this cousin, because this cousin has not uploaded to GEDmatch. I share 24.7 cM's and 1 segment, and my mother shares 20 cM's on 1 segment. This shouldn't be. I think this reflects the problems with AncestryDNA's Timber filter. I don't place that much confidence in the cM numbers, which tends to be on average 7 cM's different than everyone else due to the Timber filter and phasing. According to AncestryDNA we are 4th to 6th cousins of Francisco Alvarado Granizo's Great-Granddaughter. I didn't know of any surnames shared in common? No Alvarados or Granizos that I knew of. But my family history for my Nicaraguan family only went back to my great-grandparents and their children, and their children's spouses.
I had no idea that my first day in Granada, Nicaragua was a National Holiday in Nicaragua. It's called La Purisima. It's the feast day of the Immaculate Conception. I guess I'm not that good a Catholic because I had no idea. I couldn't do any research that day due to the fact the archives were closed for the holiday. I had a great day anyway though. I went on a Colonial Homes tour and attended part of the Immaculate Conception feast mass, which was followed by a several blocks long procession with the Statute of the Virgin which included music from a band. I agree with a Youtube comment "Mary is Nicaragua and Nicaragua is Mary."
I had heard these celebrations can lead to a week long closures of government offices. I lucked out and the Municipal Archives opened the day after the Holiday. I was thrilled. It was very hot in the Archives room which didn't have any air conditioning. I melted. There is definitely some of my DNA on the records at the Archives because perspiration was dripping. They had double doors open which did bring in a breeze. The tropical plants outside the door looked nice, during my breaks I looked out at them. I was also serenaded by lovely piano and violin music from the next room. I recognized Yankee Doodle being played at one point. The Archives is located in a public cultural center. Ballet Folklorico was also danced outside in the courtyard. My Grandmother definitely danced there also, because this center was a theater when she lived in Granada.
|Nicasio's signature and personal |
flourish or rubrica
I was also able to solve a mystery regarding my grandmother's father. Someone named the wrong Nicasio Del Castillo as her father. I was thinking that Nicasio, who was President in 1856, would have been way too old to have been her father. That was a correct assumption. From the 1882 Census I found out that there was a younger Nicasio Del Castillo who was only 16 in 1882. The correct age range to have been my grandmother's father. His father was Francisco Del Castillo. According to a niece of my grandmother the Nicasio who was her grandfather, and my Grandmother's father, was the son of a Francisco. The 1882, 16 year old, Nicasio's father was Francisco. Francisco was an attorney. My grandfather Nicasio was also an attorney. I'm so glad my mother told me her grandfather was an attorney because this profession seems to have been passed down in the family. According to other documents I've found Nicasio, the President, was the father of Francisco and the grandfather of my Nicacio Del Castillo Granizo. The elder Nicasio is listed next to Francisco on the 1882 Census and was 66 years old then. According to other documents he probably died in 1884.
My entire trip was a success. I was able to add 3 new ancestors to my family tree and another surname. My Nicaraguan line tree still looks sparse, but is quite good by Nicaraguan standards. Due to record losses family trees are generally short. I'm hoping to return to Nicaragua in the near future with a Y DNA kit. Hope I can find a male Del Castillo to take the test. Y testing could take my Del Castillo tree back to 1600's Seville, Spain.
The Director of the Arts Center Dieter Stadler , who is Austrian, asked me if I came to Nicaragua solely to research in the Archives. Would I travel over 3,000 miles just to look at a couple of Censuses? Probably... I also wanted to see the place where my Mom was born. Visit the church she was baptized in.
I'm praying for Nicaragua, as my mother did. When ever there was a disaster my Mom would say it hurt her because that was her country. Now I feel like it's my country too. Before my Mom passed away last August I told her I planned to visit the place where she was born. It's a beautiful country with friendly beautiful people. Tourism is helping this very poor country. I'm hoping to see continued progress when I return.
|I have a PDF and paperback copy of the catalog|
Wednesday, December 2, 2015
Still early as far as the introduction of the new open sharing feature at 23andMe. So far 7 people are open sharing on my mother's match list, and 10 are open sharing with me. I'm hoping the open sharing numbers grow. Anyone interested in using 23andMe for genealogy should agree to open sharing. You do need to check a box in order to participate. You are not automatically included in open sharing. (See this blog to get instructions for participating in open sharing "How To Opt In")
I'm hoping more people agree to open sharing? The wording for the opt in wouldn't encourage many people to share openly.
"By selecting open sharing, it is possible there is the risk that other DNA Relatives or other users will be able to identify certain information about you, including specific genetic variants related to health."
I'm not confident that many people will agree after reading this disclosure?
Before the changes I had access to the exact location of over 1000 shared segments. Half of those contained a match name, and the other half were anonymous. The anonymous matches could also be helpful since they listed the origins of all grandparents. Many of the segment matches were substantial in size. Of those either open sharing, or just sharing with us, most share smaller amounts of DNA. I do like the fact 23andMe provides a chromosome browser. The lack of trees and cooperation of matches makes 23andMe more difficult to glean useful information from.
Below is the now eliminated Countries of Origin information. You can see one match shares a 71.6 cM segment and another a 63.4 cM segment etc. This was very useful information because many of these matches did not agree to accept my sharing invitation. Sadly this information is no longer available. I still think adoptees should test with 23andMe, since you can get some pretty close matches. The more distant matches I'm looking for are more difficult to confirm now. I wouldn't recommend this test to those looking for cousins past 2nd. The cost is too high for the limited information you're likely to get.
The fact AncestryDNA now provides some segment and total cM information does make this product more useful. Today I found a match on my Lambert line. When I looked at the segment information and total cM's I discovered I shared 7.6 cM's on two segments. This doesn't look like a very promising match. Since Ancestry is using the Timber filter further comparison at GEDmatch is needed to see if we actually share more DNA. I would recommend testing with AncestryDNA, but comparison at GEDmatch is often needed to confirm matches.
Monday, November 23, 2015
|AncestryDNA now provides some cM information|
Important steps forward for AncestryDNA. First Ancestry introduced shared matches then a couple weeks ago they began allowing us to see exactly how much DNA we share and how many segments we share. Valuable information to have in order to evaluate matches and make connections. The DNA information isn't easy to find unless you do some exploration of links on your matches' pages. This information is shown when you click the "i" next to the confidence level. I've been able guess at some possible relationships using the shared match feature. Seeing the basis for matches looking at the shared DNA and number of shared segments has allowed me to evaluate the quality of my matches.
I was quite disappointed when a 3rd cousin was predicted to be a 4th to 6th cousin a couple of weeks ago. I feel this is a bad call. According to Ancestry this person shares 50 cMs with me, which is in line with a 3rd cousin relationship. Glad I was able to see the shared cM's so I could dismiss the AncestryDNA prediction (sounds like someone at ISOGG on Facebook has a match sharing 6 cM's on 2 segments???). A second cousin's results came in a week ago and his relationship prediction was accurate. Looking at other matches I see that on average Ancestry is 7 cM's different than Family Tree DNA and GEDmatch. They can occasionally be as many as 20 cM's off. I think AncestryDNA should dump the Timber filter and use a more accurate filter. Sounds like more accurate filters process more slowly and are more costly? I would still like to see a chromosome browser. I'll lift my grade for AncestryDNA to a B. I would give it an A if they would provide a chromosome browser.
23andMe is taking steps backward with their genetic genealogy product. The FDA is allowing them to provide health related results again. The health product was the primary focus for 23andMe, and will be again. They are completely revamping their DNA product. The very useful "Countries Of Origin" tool is now gone. Without this tool 23andMe is far less useful because most matches won't agree to share genomes. The price has increased from $99 to $199. I wouldn't recommend this test for that price. Without "Countries of Origin" you are unlikely to get very much information from matches. The health results aren't generally useful unless you have a clearly defined genetically inherited disease risk. Lowering my grade for 23andMe to C- overall. They do get an A for their ethnicity product, which is virtually the same.
If you'd like to read more about the changes at 23andMe you can read this more in depth explanation at Kitty Cooper's Blog. I noticed I have double the number of matches (about 1800) I had before, but most are anonymous. Also some of the physical characteristics reports were far off. My mother was predicted to have dark eyes. Her eyes were light hazel. My eyes are dark which is correct.
Trip to Nicaragua:
I plan on leaving for a genealogy research trip to Granada, Nicaragua on December 7 (if all goes according to plan).
I have done some preliminary research. I've exchanged emails with an archive employee. He said that a staff member has found some information about my family. I have also learned about what is available at the archives from a distant cousin Alan (who is a DNA match). He has made a number of research trips to Nicaragua. He provided me with an index to the archive holdings.
My primary research location will be "Archivo de la Prefectura de la Municipalidad de Granada, Macario Álvarez", which contains 1,653 bundles of documents. This archive contains important genealogy sources such as Censuses and Military records. Another good source for Nicaragua was explained to me by my distant cousin Alan i.e. "recursos de habilitación are one of the more obviously genealogical series, they are coming of age documents usually the offspring of well to do families, in which they state that they are of legal age to enter into the administration of their patrimony and are x years of age, and their parents are x & x. I have not used this collection very much but it is specially useful for Granada families."
I hope to find more about our cousin Francisco Alvarado Granizo, and more about my Great-Grandparents Nicasio Del Castillo and Elena Garcia. According to my Aunt Grace, the informant on my Grandmother Graciela's death certificate, her parents were Nicasio Del Castillo and Elena Garcia. My Mother knew her grandmother was Elena. She didn't know her maiden name, or her grandfather's name. I believe Aunt Grace was a good informant because she worked as a secretary for many years and was very organized when it came to keeping documents. My mother said her grandfather was a lawyer, which seems to suggest a relationship with Nicasio Del Castillo who left 28 years worth of legal books at the Granada Archives, which dated from 1857 to 1884. This Nicasio would seem to be too old to be my grandmother's father? Since the legal profession tended to be a family profession the elder Nicasio may have been my grandmother's grandfather? My grandmother was born in 1893.
The death certificate for my grandmother Graciela Del Castillo is the only document I have naming my great-grandparents.
A few years ago I exchanged emails with a distant Del Castillo cousin. He was living in Central America at the time. He provided me with the names of the siblings of my grandmother Graciela. I found out her brother Alberto was entombed in a Mausoleum in Granada. I will try to locate his tomb. I was able to find the exact relationship of the cousin pictured right with the help of this Central American man who did some research for me.
Most of Granada's 1856 and before government records were destroyed in that years due to an American William Walker taking over the presidency of Nicaragua, and the violence of that take over. I'm hoping to search an 1859 Census and an 1882 Census. Since I need more information regarding the identity of my Great-Grandparents the fact that earlier records are missing will not affect my initial research. In order to trace my family farther back marriage records called "expediente matrimonial" will need to have to have survived at the Catholic Cathedral diocese archives.
It will be interesting to see where my Grandparents and mother lived. My Grandfather Charles Forgey was born in Indiana. Ran away from home at age 17, joined the Marines in 1916 and was sent to Nicaragua. He married my Nicaragua native grandmother Graciela Del Castillo in 1919. My mother Edna was born in 1921. The family left Nicaragua in 1925 and settled in California. I'm a little apprehensive about traveling to a "Third World" country. I've gotten hepatitis and Typhoid vaccinations in preparation. Hoping all goes smoothly?
Tuesday, October 20, 2015
I noticed Kelly Wheaton's post (Facebook ISOGG) about "The DNA Detectives" a New Zealand based, genetic genealogy themed, TV show. Great idea for a show! Hopefully it will inspire more people to test. I have a few New Zealand and Australian matches; mostly based on my Irish ancestry.
You can watch the show here (see bottom of page) or at this link https://www.youtube.com/watch?v=IvFAyWoYpaY
The shows host is a little quirky. His animated gestures are funny, like pretending to blow a train whistle at one point, and making a train sound effect. The set in the studio is retro themed, and the host slams a button to display the DNA results. Two celebrity guests were featured, Jack Tame and Ray McVinnie, in this 44 minute show. After an initial ethnicity test reveal, in the studio, the guests travel around the world in search of DNA cousins.
|South Asian segments|
Kelly Wheaton's segments were interesting because they included more historical information, and actually showed the basis for one of the ethnicity percentages. Kelly had researched Tame's line. She found a surgeon, from Scotland, who immigrated to India in the 17th century. He married a native of India, which is where the 1.4% South Asian comes from. When Kelly showed him the large South Asian share from the 23andMe's ethnicity chromosome browser it really brought that fact home to him. He was blown away when he saw that. He had heard about some possible South Asian, but actually seeing the segment made it real. Kelly Wheaton is related to Tame, according to DNA test results, but she was not able to find the common ancestors. These distant cousins did share a resemblance as they noted.
The segment in Jamaica was very interesting also. This took McVinnie to Jamaica in search of the African ancestor who contributed the 2.2% African admixture. He met up with some distant cousins who showed him their family tree. Even though the guest wasn't aware of any connection with Jamaica he shared DNA and surnames in common, which established a definite relationship. The African ancestor was identified, and it sounds like he lived in the 18th century. He didn't expect his trace of Jewish ancestry to also stem from Jamaica, but it did. Portuguese Jews fled to Jamaica during the inquisition and other times of persecution.
The final segment featured someone only identified as James. This man designs software to help adoptees find relatives. He is an expert at hacking into computer systems. He doesn't hack illegally, he does it as a career to help companies find holes in their security. Great to have someone as skilled as he is helping adoptees!
Some educational information coming out of this show:
- Guest Tame's grandmother already knew some of the information which he discovered on his New York trip. This is something that always comes up on these kinds of shows. Relatives will later tell guests they already knew something. Many relatives never share stories unless asked.
- Small 1 and 2 percent DNA shares can go back to the 18th Century. The host said these small shares can go back 200 to 300 years, and are not ancient. Likely correct The featured guests had small ethnicity segments of from 0.40% to 2.2% and these shares went back to the 18th Century.
- Guest two, McVinnie, would seem to have more Italian ethnicity than showed up in his ethnicity results. Southern European is not as well defined as Northern European when it come to these tests. Probably because most testers are of Northern European heritage.
- Always assume information passed down through generations could be wrong until you can find actual documentary evidence to support it. As a misspeak by one guest demonstrates.
Monday, October 12, 2015
I've been trying out the Beta version of DNA Land and, a new site devoted to scientific genetic research. It also provides some of the same features as the DNA testing companies; such as ethnicity results and matching for those upload their raw data file. Sounds like a very worthwhile project to contribute to. I encourage everyone (especially AncestryDNA customers) to contribute their raw data. Register and upload here https://dna.land/ Full instructions on how to get your raw data, and how to upload it are provided after you register. It's free to use.
When I got my initial results back I thought the Ashkenazi on my father's side had finally been recognized. My Ashkenazi came out to be 17%. After uploading my mother's raw data I discovered that she tested as 18% Ashkenazi/Levantine. A cousin thought that this result might reflect our shared German line. Looking at our family tree our German line represents a small fraction of our ancestry. I don't see it adding up to very much percentage wise. Plus most cousins in this line aren't testing Ashkenazi. At 23andMe my Mom and I have less than 1% Ashkenazi. None of the other companies found any Ashkenazi for either of us (except AncestryDNA did find a trace amount for me only).
For background I should say my maternal Grandmother Graciela Del Castillo was Nicaraguan, and my maternal Grandfather Charles Forgey was primarily Scots-Irish with some German. 23andMe found that trace of Ashkenazi, which it placed on my Grandmother Graciela's side after, in my Mother's results, after phasing. I believe all of the Middle East and Ashkenazi results are from my maternal Grandmother, since these results don't show up in Forgey cousin admixture.
|Original Family Tree DNA result Mom|
Looking at my Mom's Native American percentage prediction at DNA Land it looks correct. Native American is much easier to distinguish than some other admixtures.
I'm hoping DNA Land will provide information regarding the populations they are using to come up with the percentages? That would be helpful.
PS Spent the day at the beach yesterday. Got sunburned. I'm a little zonked out today. Hope this makes sense?
Friday, October 9, 2015
Yesterday the need for segment information was discussed at the Facebook ISOGG group, and also brought up by a Kapple DNA match. Many people say triangulation isn't working for them so the fact Ancestry doesn't provide segment information doesn't affect them. Since we all can agree that we can't accept undocumented facts and add them to our trees without substantiation, we should also agree we can't accept a DNA match without the segment information to provide evidence that we really do match, and where on the chromosome we share DNA. This is a form of citation and documentation. I appreciate Ancestry for the hints their DNA product provides, and the resulting collaboration. Occasionally I have been able to persuade matches to upload to GEDmatch from Ancestry. Ancestry isn't required to provide this information. If, and when, they do it will have to be done through permission from both parties agreeing to share segment info. This isn't an ideal situation, but more people would agree to share if they could just click a button and do it. I've had problems downloading the raw data file at times. This feature is sometimes down. It would be so much easier if you could just share the segment info at Ancestry. Ancestry isn't a strictly DNA company. As many have said most users wouldn't know what to do with the segment information if they had. This may be true now, but I believe many will have their curiosity piqued and eventually would use this information.
Thinking further about the importance of segment information as supporting evidence I feel I need to add the exact segment information to the ancestors the segments likely correspond with. I will add the AncestryDNA info to my genealogy software too, but I can only say that Ancestry predicts such and such relationship, but no supporting chromosome information is available. Saying "Ancestry says" isn't the best supporting evidence, unfortunately.
I've decided to add the segment information to notes. I noticed you can add Y and MtDNA information at Rootsmagic. I don't see a way to add segment info? I don't have the most recent version of the software. Maybe more recent versions have more options for adding DNA info? Somehow all of this DNA information needs to be integrated with the rest of my evidence.
We need substantive information from DNA testing companies in order to get the most out of our tests. We need substance so we can more confidently collaborate with our matches. We need segment information if we want to use DNA testing results as serious supportive evidence.
Friday, September 18, 2015
My Mother's results were phased with mine a couple of weeks after her initial results came in.
My unphased results seemed to suggest my father had some Native American admixture. After phasing practically all of my Native America shifted to my maternal side. It does look like around 1% still remains with my paternal line. I've been trying to establish whether my father did have a Native American ancestor? It's possible we descend from the Half King Tanacharison? Probably impossible to prove or disprove a connection from 17th century Pennsylvania?
This is what my phased paternal results look like.
Here is my ethnicity prediction for my Maternal line.
Phasing against my mother improved the accuracy of our results. Instead of ethnicity being assigned to broad categories the results became more specific.
I'm also happy with the fact my matches have an M if they also match my mother.
Testing both parents. or a parent, if possible is very helpful. It's especially useful at 23andMe.
Sunday, September 13, 2015
My mother Edna Forgey-Kapple died on August 24, 2015. She had been bedridden for a couple years. Her quality of life was poor, so her passing was a blessing. She tested with 23andMe about a month before she passed away. I wasn't sure if she would pass their test considering her declining health condition, but she did.
The initial result was the Neanderthal percentage. My Mom had a higher percentage of Neanderthal. She had 3.3 and I have 3.1.
|Unphased X Mom Orange Native |
American Blue European
was Nicaraguan. This seems correct. My own results were also corrected. The Native American on my paternal X is now on my maternal side, which makes more sense. Our Iberian and Southern European percentage also increased substantially after phasing. This makes sense considering our Hispanic/Nicaraguan roots. According to AncestryDNA our Southern European is mainly Italian? This doesn't really make sense considering our Hispanic heritage. I know the ethnicity results aren't conclusive proof of anything, but I do feel like 23andMe's phased results are closest to correct.
Phasing has left a trace amount of possible Native American on both my father's side, and maternal grandfather's side. I do see possible Native American on my father's side, but none on my maternal grandfather's side.
Looking at the phasing that 23andMe did for ethnicity I have to say they were right on the mark when it came to separating out my mother's parents' ethnicities.
The ethnicity predictions also look good when comparing my Mom's two nieces and nephew. It's especially apparent when comparing on the X.
|Two Nieces are green and blue. Nephew Purple |
Shared segments with my Mom
|Aunt's Ethnicity (my mother)|
|Niece 1 Ethnicity results|
|Where Nieces (sisters) share with each other. |
Light blue half identical. Blue fully identical.
It appears that my Mom, her Nieces, and Nephew inherited quite a bit of common DNA on the X. Niece 1 shares DNA along the entire X with my Mom. This is because she inherited nearly her entire X chromosome from her maternal grandfather. Since her mother was my Mom's sister, this could occur. Sisters inherit identical paternal X chromosomes, which is why Niece 1 shares DNA on the entire X.
Another conclusion we can draw is that the Nieces (sisters) share European DNA from their maternal Grandfather at the start of their maternal X. This is because this portion of my Mom's maternal X is Native American, and her paternal X at this position is European. It also supports the fact Niece 1 inherited almost her entire X from her grandfather.
The final results to come in were the match results. I found some close matches. I have been able to get the segment information for most of her close matches. Hoping the segment information may eventually prove helpful in breaking down some brick walls. I'm so glad I tested my Mom with 23andMe. She definitely lives on, along with all of our departed relatives, as can be seen in our common DNA.