The First Frasher/Frazier BigY Results

The long-awaited Frasher/Frazer BigY results are starting to come in. This test was ordered around the time Rick from the Roscommon Frazer group ordered his test last August. However, the Frasher/Frazier test was delayed due to quality issues.

The Status of the Frazer BigY Project

Prior to the Frasher/Frazier test results, there were four Frazer BigY testers. They all had pretty well-defined relationships based on genealogy:

Rick was the one who ordered a new BigY test. Also around the same time, Rodney upgraded his BigY 500 to a BigY 700. That means that now Rick and Rodney have BigY 700 results and Paul and Jonathan have the older BigY 500 results. Here is the Block Tree pre Frasher/Frazier:

My second cousin once removed Paul is R-Y85652. This is called in general the Archibald Branch. Rodney and Jonathan are in R-Y151390. This is called the James Branch of the Frazer Line. These two lines were previously under R-YP6489. For some reason, another group formed between YP6489 and the two Frazer Branches. This is R-FT421618. As it is usually necessary for a new tester to form a new group, I had assumed that the new Frasher/Frazier test would end up as FT421618.

New Frazier/Frasher Results

Here is the new Block tree from my cousin Paul’s perspective:

The new tester, Richard is listed as R-YP6489 and not FT421618. That means that it is likely that it was Richard that split the YP6489 Block into two. The YP6489 Block must have previously had had six SNPs. Now there are two blocks with three SNPs each.

FT421618 and YP6489

R-FT421618 is the newest SNP and represents the Haplogroup of the Frazers from Roscommon, Ireland. This is the SNP in common with the four BigY Frazers whose roots go back to Archibald Frazer who apparently lived in Roscommon Ireland sometime before 1749. The new Frazier/Frasher tester does not share these SNPs.

Based on the Block tree, it appears that Richard, the newest BigY tester shares three SNPs with the Roscommon, Ireland Frazers. These SNPs are YP6489, YP6490 and YP6493. Collectively, these are called YP6489.

Where and When is YP6489?

When Did YP6489 Form?

This is the big question. We can date FT421618 to about 1690 to when we believe that the first Frazer lived in Roscommon Ireland. That means that the oldest SNP in the Block of YP6489 formed three SNPs before 1690. The question then is, how often does a SNP form? I have seen a number as low as 86 years per SNP as I recall. However, the scale on the left is showing 9 SNPs up to FT421618. If we take that time from very recently then 2020 minus 1690 is 530 years. That means that it looks like a SNP formed about every 59 years.  Let’s use 86 years for the three SNPs in the YP6489 Block. That gives us 258 years before 1690 or 1432 for the formation of the oldest SNP in the YP6489 Block. However, see further down in the Blog as I surmise that there should be more SNPs in this Block which would make YP6489 even older.

When was the Common Ancestor Between Richard and the Roscommon Frazers?

This is a different question. It appears from the Block tree that Richard and the Roscommon Frazers share the top three SNPs in YP6489. That means that the common ancestor would be closer to 1690 than to 1432:

In the image above, “Your branch” is Frasher/Frazier. We know that Richard does not descend from Archibald Frazer probably born in 1690, but he could have descended from Archibald’s father or grandfather. Let’s say that the common ancestor between Richard and the Frazers of Roscommon was 1600. My reasoning is that the most recent common ancestor would have to have a SNP shared by Richard and the other Frazers. That would be the most recent SNP in the group of YP6489. That most recent SNP probably formed about 86 years or so before FT421618.

SNP Tracker

This is a program that gives a rough estimate of dates of and locations of SNPs. Here is what SNP Tracker shows for FT421618:

SNP Tracker has that SNP in Ireland in Medieval times. That is probably based on the 9 SNPs I mentioned above. I think that FT421618 should be 1690. Here is more from SNP Tracker:

Roscommon is in the top three here and the numbers are pretty similar for Armagh, Down and Roscommon. Here is some more information, though I don’t agree with these SNP Tracker results either:

Offshore means continental Europe. That part would be quite certain.

Back Before Frazer with the Stuarts and Grants – YP6488

Whereas YP6489 is the umbrella group for the Frazer/Frasher/Frazier group, YP6488 is the umbrella group for Frazer, Stuart and Grant. The explanation for these relationships is not clear. I can come up with a few guesses:

  • This could represent the period when surnames were adopted. One group adopted Frazer, one Stuart and one Grant.
  • There could have been a Frazer/Stuart marriage and the children of one group could have taken on the Stuart name rather than Frazer for some reason.

Whatever the reason, the YDNA is sorting out the matches between Frazer on the one side and Stuart/Grant on the other.

The Block Tree makes it look like Grant is one SNP away from being a Frazier/Frasher and vica versa. However, that is only because there are not other close matches for Grant and Frazier/Frasher. If there were, that would put their groups further down on the Block tree similar to Frazer and Stuart.


It is interesting to note that Grant only has three variants bringing him to an equal level with FT421618. I had dated this as 1690. My guess is that Grant had the BigY 500 which did not discover as many SNPs or Variants. If we use the older 144 years per SNP based on the BigY 500 test that would date Grant at 432 years ago or about 1590. This is still early for my proposed 1690 date for FT421618.

Where Was the Common Ancestor for Frazer and Frazier/Frasher – YP6489?

This depends partly on the dating of Richard’s common ancestor with the Roscommon Frazers and partly on genealogy and Frazer history. Perhaps other could speculate better than I. Did the same events that resulted in the Roscommon Frazers moving to Ireland result in Richard’s ancestors move to the New World? Did a common ancestor move to Northern Ireland and then one brother moved to Roscommon and another brother or relative move to Virginia? It is even possible that Richard’s ancestor moved to Roscommon, Ireland and then to America.

Here is a map from Irish Ancestors:

Here is some more information:

Richard’s DNA Testing

FTDNA will do a manual review if a new YDNA branch is formed. Technically, the new branch formed before Richard’s test results were completed. However, this new branch of FT421618 seems to have formed based on Richard’s results.

Richard shows under “Your branch”. What appear to be missing are Richard’s Private Variants.

Richard’s Private Variants

These are the Richard’s SNPs that have no matches at this time called Private Variants. They form Richard’s personal line since the three SNPs in the Block that form YP6489:

This is some of the most important information from the BigY test as these are for the most part new variants that have been discovered in Richard that have never been discovered in anyone else in the World. I haven’t checked Richard’s Private Variants to see if they are all truly Private. However, the number of Private Variants seem to be a reasonable number at six. Above, I gave a possible date of 1600 for a common ancestor between Richard and the Roscommon Frazers. That means that, since 1600, six Variants formed as opposed to the approximately 9 that formed in the Roscommon Frazer Line.

I can look up these positions in YBrowse. 10059190 is too new and does not appear there yet as a Variant:

The same is true for Richard’s next three Private Variants. I found some information on 4056256:

This is a new SNP as of 2021. My guess is that that this “Private Variant” may have come about from Rick or Rodney’s BigY 700 tests.

That leaves one more Private Variant for Richard. Position 5987829 has been named also:

Next, I need to check Rick and Rodney for these two positions. Rick has one of the two:

Rodney has both of these ‘Private Variants’:

Here is my guess of what should happen:

It seems like these two SNPs should go up into the YP6489 Group. Also Rick should lose one of his Private Variants and Rodney and Richard should lose two each. It could be partially due to these discrepancies that FTDNA ordered additional testing for Paul and Jonathan. The other question is, why didn’t Rick show that he had position #4056256? Here are Rick’s results:

It appears that Rick’s BigY 700 testing missed that position number.

For Jonathan and Paul, the results seemed inconclusive for these two positions. Here is what Jonathan’s results looked like for Position #4056256:

Summary and Conclusions

  • Richard’s BigY test represents the first BigY test for a Frazer/Frazier who doesn’t descend from Archibald Frazer of Roscommon Ireland
  • Richard’s BigY test benefits from the prior testing of four Frazers. Without this he would have shown that he is related to two Stuarts and a Grant.
  • Due to the Frazer testing and genealogy, the common ancestor between Frazer and Frazier/Frasher should be about 1600
  • I made some guesses as to where this common ancestor lived, but I don’t know. Finding a Frazer with Scotland-only genealogy who has tested for YDNA would help.
  • I made some guesses as to where Richard’s Private Variants would end up.

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