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Taylor Group R1b-05

This page is about the Taylor Y-DNA genetic family designated number 05, its members, Y-DNA and other information.



Taylor Group R1b-005 Members
Kit #
Name Most distant known ancestor Hap
Score **
Lo Hi
_32504 Taylor Thomas Taylor (1748 VA - 1810 TN) R-L2 88.2% 100%
_93055 Taylor Theodore P. L. Taylor, (c.1810 TN  - bef 1860 IN) R-L2 88.2% 100%
121527 May Father adopted R-L2 88.2% 100%
179498 Taylor Isaac Taylor (? ?
-1781 Montgomery Co, VA)
199147 Taylor ? R-L2 99.2% 100%
234034 Taylor John M. Taylor (1845 - 1917) R-L2 99.1% 99.8%
234733 Taylor Preston Taylor (abt 1810 VA - bef 1872 KY) R-M269 58.0% 88.2%
270321 Taylor John W. Taylor (1830 TN - 1909 TN) R-L2    
Grouped in error
_30516 Taylor * Isaac Taylor (1700 IRE - 1781 VA) R-M269    
* 12 markers only; GD= 2:12; matches Niall haplotype while others match WAMH. No others of R1b-05 reported as close matches by FTDNA.

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About this Group

The members of this patriline are in haplogroup R1b1a2 the most common in the Taylor surname project and indicating a probable origin in the British Isles. Two members have tested positive for the SNP L2 (AKA, S139 and denoting R1b1a2a1a2b1); it is downstream of P312.

One member matches the "Niall of the Nine Hostages" haplotype; the others match the WAMH haplotype.

Note: Further genealogical information may be found at " Taylor Families of Old Augusta County".

Y-DNA Values

See http://www.familytreedna.com/public/taylorfamilygenes/default.aspx?section=yresults.

Group R1b-05: Haplogroup = R1b1a2

Haplotype Rarity

Based on the values of the individual markers, the members of this genetic family score, on average, in the Uncommon range. Their haplotypes are among the least common 25%.

Genetic Network

With grateful thanks to McGee Utilities and Fluxus Engineering, we calculated the 37-marker genetic network diagram below.

Fluxus Network Diagram
Fluxus Network.

Reading the Fluxus Network Diagram

The network diagram gives a pictorial representation of how members of this genetic family may be related. It depicts inferred genetic branches of the paternal lineage and may be helpful in documentary research.

  1. The inference criterion used to build the diagram is maximum parsimony or "Occam's Razor". This criteria (fewest possible assumptions) may not be the most appropriate in all instances.
  2. The diagram is not proof; it is one interpretation of available geneitc data. Alternative interpretations may be possible.
  3. ySTR data is "noisy"; it contains some unexplained variability. .
Notes on the diagram:

TiP Scores

TiP general

TiP Scores Explained

TiP (for "Time Predictor") is a utility provided by Family Tree DNA. It is accessible to all FTDNA customers with Y-DNA results who have matches listed within the FTDNA reporting windows. It is also available to project administrators for calculating the probabilities that any two project members share a direct paternal ancestor within up to 24 generations.

TiP is superior to most TMRCA calculators. Rather than assume an average mutation rate for all markers compared, TiP uses individual marker mutation frequencies. Because marker mutation rates vary significantly between markers, the TiP scores 

As we use it here, TiP is a truer and simpler measure of genetic distances between individuals than other metrics such as the number of markers in disagreement or a sum of the differences (sometimes called "genetic distance"). TiP boils the complexities down to one number.

The composite TiP score is an index of how closely a member matches the entire group. Generally, the member with the highest score is the central member.


Unless stated otherwise, TiP probabilities are from TiP version 1 (v1) in effect from August 1, 2012 to December 11, 2012. Another version was in effect from December 12, 2012 to January 17, 2013 and was replaced with version 3 (v3) on January 18, 2013. We are in the process of updating to v3. In the meantime, we've made some observations about how v1 and v3 compare:

TiP Scores: 37 markers, 24 generations
Number 121527 _32504 199147 234034 _93055 234733
121527 X 0.9998 0.9985 0.991 0.9998 0.8819
_32504 0.9998 X 0.9985 0.991 0.9998 0.8819
199147 0.9985 0.9985 X 0.9915 0.9998 0.7776
234034 0.991 0.991 0.9915 X 0.998 0.5797
_93055 0.9998 0.9998 0.9998 0.998 X 0.8819
234733 0.8819 0.8819 0.7776 0.5797 0.8819 X

Genetic distance from other groups

The most closely-related other groups in Taylor Family Genes are

This group is the 6th most closely related to R1b-04 with a 45% chance of sharing a c common paternal ancestor within 24 generations.

Haplogroup & SNPs

Three members have tested positive for the SNP knowns as L2, definitive for R1b1a1a2a1a2b1. It is likely that other members (except the one grouped in error) would also prove positive for L2 but additional testing is suggested for confirmation and refinement.

Others who may have been R-L2 include George Washington and the Plantagenet kings of England.

Phylogenetic placement

R-L2 is downstream (a subclade) of R-M269. The apparent progression is M269 > P312 > U152 > L2. Known subclades of L2 include S255, S369, L196, & Z149.


The highest present concentrations of R-L2 are in the European Alps and the Balkans.


L2 is believed to have formed about 4.5 kya and the MRCA for all L2+ men lived about 4.5 kya. Closeness of the estiamted dates indicates a rapid division into subclades, perhaps due to population and territorial expansion.

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Revised: 23 Jun 2015