My mother and I have a DNA match on our Hunt side who has a shared match on our Sanderson side. TMG is telling me there is no relationship between the two women. I’m checking with the Sanderson cousin to find out if she’s aware of any Hunt marriages into their other sides of the family that might be responsible for the match. Granted, the amount of shared CMs is only 11.7 between the two of them, so it could be a false positive, but I’ve gone back several generations on both sides of the family in the relationship calculator and it tells me no relationship. Does TMG calculate half-relationships? I have another ulterior motive for posting this question. I saw on another Rootsweb mailing list that someone was able to either embed a photo into the message or send an attachment. I’m attempting attachments here to see if it works. If you don’t see them, it doesn’t. Robin in Short Pump

The attachments apparently didn’t work. I never got a bounce notice, but this message never appeared that I can see. So let’s try embedding. > On Mar 18, 2018, at 4:19 PM, Robin Kaspar <[email protected]> wrote: > > My mother and I have a DNA match on our Hunt side who has a shared match on our Sanderson side. TMG is telling me there is no relationship between the two women. I’m checking with the Sanderson cousin to find out if she’s aware of any Hunt marriages into their other sides of the family that might be responsible for the match. > > Granted, the amount of shared CMs is only 11.7 between the two of them, so it could be a false positive, but I’ve gone back several generations on both sides of the family in the relationship calculator and it tells me no relationship. > > Does TMG calculate half-relationships? > > <jennifer and allison gedmatch one to one screenshot.jpeg><jennifer and allison no relationship screenshot.jpeg> > > I have another ulterior motive for posting this question. I saw on another Rootsweb mailing list that someone was able to either embed a photo into the message or send an attachment. I’m attempting attachments here to see if it works. If you don’t see them, it doesn’t. > > > > > Robin in Short Pump > > > >

On 3/18/18 8:02 PM, Robin Kaspar wrote: > The attachments apparently didn’t work. I never got a bounce notice, but this message never appeared that I can see. > > So let’s try embedding. > > > > > > >> On Mar 18, 2018, at 4:19 PM, Robin Kaspar <[email protected]> wrote: >> >> My mother and I have a DNA match on our Hunt side who has a shared match on our Sanderson side. TMG is telling me there is no relationship between the two women. I’m checking with the Sanderson cousin to find out if she’s aware of any Hunt marriages into their other sides of the family that might be responsible for the match. >> >> Granted, the amount of shared CMs is only 11.7 between the two of them, so it could be a false positive, but I’ve gone back several generations on both sides of the family in the relationship calculator and it tells me no relationship. >> >> Does TMG calculate half-relationships? >> >> <jennifer and allison gedmatch one to one screenshot.jpeg><jennifer and allison no relationship screenshot.jpeg> >> >> I have another ulterior motive for posting this question. I saw on another Rootsweb mailing list that someone was able to either embed a photo into the message or send an attachment. I’m attempting attachments here to see if it works. If you don’t see them, it doesn’t. >> >> >> >> >> Robin in Short Pump >> >> >> >> > The TMG archive is found here: http://archiver.rootsweb.ancestry.com/th/index/TMG/ > Instructions on how to subscribe to TMG: http://lists.rootsweb.ancestry.com/index/other/Software/TMG.html > The TMG archive is found here: http://archiver.rootsweb.ancestry.com/th/index/TMG/ > Instructions on how to subscribe to TMG: http://lists.rootsweb.ancestry.com/index/other/Software/TMG.html Both messages appeared, but you likely won't see them unless you check the archives. One issue with gmail is duplicate message suppression (which you can't disable) considers the message you get back from the list list to be a duplicate of your sent message. (unless you get messages as digest). -- Richard Damon

At 3/18/2018 16:19, Robin Kaspar wrote >Does TMG calculate half-relationships? Yes. Or rather, it calculates relationships. My wife's grandmother had two wives and had a daughter by each. TMG calculates the daughters as sisters,which they are -- through their father. Both daughters had daughters and TMG calculates the granddaughters as first cousins,which they are -- through their grandfather. Actually half-anything is not calculated as the relationship is still sibling, cousin, aunt, uncle, father, mother, etc. Similarly, double-cousins are still just cousins. Yes, half-whatever and double-whatever makes a difference in regard to DNA (double first cousins tend to be closer genetically to siblings than just first cousins), but they're still whatever. >I have another ulterior motive for posting this >question. I saw on another Rootsweb mailing list >that someone was able to either embed a photo >into the message or send an attachment. I’m >attempting attachments here to see if it works. >If you don’t see them, it doesn’t. Unless the recent software change made a difference, RootsWeb mailing lists do not permit attachments and I think that also applies to embedded files. This was the policy set to help ensure against injurious files being transmitted. Lee

Robin, Lee has answered the TMG part of your question, but while it's true the one segment could be a false positive, the way that you're phrasing the situation (asking if the Sandersons have any other Hunt connections) makes me suspect that you're taking too narrow an approach to the DNA. The person who matches your Hunt side and also a relative on your Sanderson side is probably not matching the Sanderson relative through a Hunt connection, but through some irrelevant-to-you shared ancestor. Here's a comparable scenario: I match my father's cousin Jim on our German side. Jim and my mother happen to share some matches, but that doesn't mean my mother is related to my father, or even to Jim. Since Jim is half Irish and my mother is 1/4 Scottish, chances are the shared matches have some Irish and Scottish ancestry. Of course, we can't rule out the possibility that your Hunt match is related to the Sandersons through the Hunts (or that Jim and my mother are distantly related but don't share DNA), but as I say, it's more likely that her match to the Sanderson relative is through some other line and is far enough back that you don't have it in your database. And you may already know this and simply have phrased your query a bit loosely. Karla Huebner calypsospots AT gmail.com On Sun, Mar 18, 2018 at 4:19 PM, Robin Kaspar <[email protected]> wrote: > My mother and I have a DNA match on our Hunt side who has a shared match > on our Sanderson side. TMG is telling me there is no relationship between > the two women. I’m checking with the Sanderson cousin to find out if she’s > aware of any Hunt marriages into their other sides of the family that might > be responsible for the match. > > Granted, the amount of shared CMs is only 11.7 between the two of them, so > it could be a false positive, but I’ve gone back several generations on > both sides of the family in the relationship calculator and it tells me no > relationship. > > Does TMG calculate half-relationships? > > > > I have another ulterior motive for posting this question. I saw on another > Rootsweb mailing list that someone was able to either embed a photo into > the message or send an attachment. I’m attempting attachments here to see > if it works. If you don’t see them, it doesn’t. > > > > > Robin in Short Pump > > > > > The TMG archive is found here: http://archiver.rootsweb. > ancestry.com/th/index/TMG/ > Instructions on how to subscribe to TMG: http://lists.rootsweb. > ancestry.com/index/other/Software/TMG.html > The TMG archive is found here: http://archiver.rootsweb. > ancestry.com/th/index/TMG/ > Instructions on how to subscribe to TMG: http://lists.rootsweb. > ancestry.com/index/other/Software/TMG.html

At 3/18/2018 16:19, Robin Kaspar wrote >My mother and I have a DNA match on our Hunt >side who has a shared match on our Sanderson >side. TMG is telling me there is no relationship >between the two women. I’m checking with the >Sanderson cousin to find out if she’s aware of >any Hunt marriages into their other sides of the >family that might be responsible for the match. > >Granted, the amount of shared CMs is only 11.7 >between the two of them, so it could be a false >positive, but I’ve gone back several >generations on both sides of the family in the >relationship calculator and it tells me no relationship. I have learned a great deal about DNA through various testing of myself and many cousins and in-laws. Mostly what I have learned is to known that I have just touched the "tip of the iceberg" and there is more that I don't know than I know. With that caveat, I agree with Karla's assessment. My wife shares a 25 cM segment with someone who also shares about the same segment but only 22cM on one chromosome with one of her first cousins. Interesting, two other of her first cousins (all same grandparents) do not share that segment. The estimated relationship to the match was 4th cousin with low confidence. We corresponded for about a month trying to find a common ancestor without any luck. In the past few days, I have noted that the match is no longer shown by the testing company. The raw data still show it, of course. So, we figure that it definitely was a false positive. Personally, I don't much bother with matches that are less than about 50cMs as to many have been false positives. On the other hand, I found a fifth cousin through a 33cM match. So, go figure. <g> Lee

Like Lee, I've done quite a bit of DNA testing of various relatives, and while there is much I don't know, I feel pretty secure about the basics. The current wisdom is that segments below about 15 cM may be false positives but that above 15 cM they should be good. In Lee's case, the two cousins who don't share the segment may simply not have inherited it, or of course there may have been something iffy about the segment as Lee suggests (a misread by the company, perhaps). Triangulation is key. For Robin (and anyone), I would stress mapping out the chromosomes so that you can verify which two grandparents contributed in that area, and which of the two contributed the shared segment. This isn't always easy with relatives who aren't your primary focus, or for that matter if you're dealing with an endogamous ancestry, but still it is very helpful to be able to tell a match "I can tell that this is a segment from my German grandfather" or whatever. As for how long a segment worth bothering with needs to be, that depends on the family. It's my impression that people with significant colonial American ancestry tend to work with larger segments. In my family, where the earliest immigrant arrived in the US around 1850, a segment of 50 cM from someone other than a known relative is pretty much unheard of. I get excited about matches with 20 cM segments because that is big in my world. So it all depends on one's ancestry and how many people are testing. My family does get a lot of Norwegian matches because a lot of Norwegians test and four of my great-grandparents came from Norway, but the Norwegians seem relatively endogamous and about all I can usually do with Norwegian matches is divide between my mother's (her grandparents came from the same community) and my father's, with some luck dividing up his as his grandmother had Forest Finn ancestry and the Finnish and Swedish matches probably come from her rather than her husband. Hope this is helpful to people -- I know it's gone off-topic from TMG. Karla Karla Huebner calypsospots AT gmail.com On Sun, Mar 18, 2018 at 10:54 PM, Lee Hoffman <[email protected]> wrote: > At 3/18/2018 16:19, Robin Kaspar wrote > >> My mother and I have a DNA match on our Hunt side who has a shared match >> on our Sanderson side. TMG is telling me there is no relationship between >> the two women. I’m checking with the Sanderson cousin to find out if >> she’s aware of any Hunt marriages into their other sides of the family >> that might be responsible for the match. >> >> Granted, the amount of shared CMs is only 11.7 between the two of them, >> so it could be a false positive, but I’ve gone back several generations >> on both sides of the family in the relationship calculator and it tells me >> no relationship. >> > > I have learned a great deal about DNA through various testing of myself > and many cousins and in-laws. Mostly what I have learned is to known that > I have just touched the "tip of the iceberg" and there is more that I don't > know than I know. > > With that caveat, I agree with Karla's assessment. My wife shares a 25 cM > segment with someone who also shares about the same segment but only 22cM > on one chromosome with one of her first cousins. Interesting, two other > of her first cousins (all same grandparents) do not share that segment. > > The estimated relationship to the match was 4th cousin with low > confidence. We corresponded for about a month trying to find a common > ancestor without any luck. In the past few days, I have noted that the > match is no longer shown by the testing company. The raw data still show > it, of course. So, we figure that it definitely was a false positive. > > Personally, I don't much bother with matches that are less than about > 50cMs as to many have been false positives. On the other hand, I found a > fifth cousin through a 33cM match. So, go figure. <g> > > Lee > > The TMG archive is found here: http://archiver.rootsweb.ances > try.com/th/index/TMG/ > Instructions on how to subscribe to TMG: http://lists.rootsweb.ancestry > .com/index/other/Software/TMG.html > The TMG archive is found here: http://archiver.rootsweb.ances > try.com/th/index/TMG/ > Instructions on how to subscribe to TMG: http://lists.rootsweb.ancestry > .com/index/other/Software/TMG.html >