Genetic Groups


Abigail Courtney (m Roberts) 1871-1928

As part of the genetic analysis associated with my search for George Courtney, I have attempted to recreate the genome of his daughter Abigail Courtney, my great grandmother, b1871.  You can read about that process here.

As I have continued to identify the segments inherited by my family from Abigail, it has been an ongoing challenge to determine whether she inherited each of the segments from her father George Courtney or her mother Abigail Paice.

The overall aim of this exercise is to identify segments inherited from her mother to exclude from the analysis.  In this way, we should be left only with segments inherited from George with all remaining triangulated groups providing clues to his origins.



Defining Triangulated Groups - Paice or Courtney?

This page is an attempt to summarise all the outcomes of each Courtney-Paice triangulated group on one page.  The many relevant groups are slowly being added to the page, along with the common names and/or places associated with each group.  Clicking on the links (TBA) shown in the potential ancestors section will take you to a blogpost with more information about the triangulated group or potential shared ancestor.

You can view my progress on the genome of Abigail Courtney at DNA Painter.  For her most current chromosome map click here. 

NOTE:  'Not yet triangulated' in the context of this post means at the chromosome level, due to unavailability of chromosome data at AncestryDNA. Tree triangulation has been achieved where potential shared ancestors have been identified. 


Potential ancestral connections


THE BEST CLUES

Identified 'Courtney' groups by chromosome

  • C01_C_M176: Likely Taylor/Williams, Middlesex, Monnor/Benson (Canada)
  • C03_A_M177: Likely Taylor/Williams, Middlesex 

  • C03_E_M244: Likely Courtney (Ismael/Grimes + Webster)

  • C03_H_M109: Hopping/Hull, Dorset (Likely 145a)

  • C03_M_M145: Likely Taylor/Williams, Middlesex (145a and b)

  • C03_O_M320 (I) : Inferred from RRS siblings (no matches)

  • C04_F_M167a and b: Likely Rudd/Webster: Middlesex (bridge matches)
  • C05_E_M023: Likely Rudd/Webster: Middlesex plus in US Burr/Strong/Baysey and Orton/Hall.
  • C07_B_M196: Likely Taylor/Williams, Middlesex, plus Rudd/Harrison/Crowe  
  • C07_C_M147: Likely Taylor/Williams, Middlesex, plus Rudd/Harrison/Crowe; Ison/Benstead
  • C08_A_M142: Likely Rudd/Harrison/Crowe, plus Scandinavia?  Tarrant?
  • C09_B_M169: Likely Rudd/Webster and Webster/Kent: Middlesex (bridge matches plus cluster)
  • C09_K_M168: Likely Rudd/Webster: Middlesex
  • C10_A_M175: Likely Taylor/Williams, Middlesex 
  • C12_I_M211:  Dyball, Norfolk, plus likely Taylor/Williams, Middlesex 
  • C12 _L_M317 (I): Inferred from Paice-Parker
  • C16_G_M039: Likely Taylor/Williams, Middlesex  
  • C17_C_M144: Likely Taylor/Williams, Middlesex  
  • C19_A_M202: Likely Taylor/Williams, Middlesex, plus Sweden? 
  • C23_A_M002: Taylor/Williams, Middlesex 
  • C23_O_M136: Rudd/Webster: Middlesex (X chromosome - not yet triangulated 18.6cMs)
  • C23_M_M166: Taylor/Williams, Middlesex (X chromosome - 97cms)
Note:  Matches via the 'X/23rd' chromosome coming via George's side can only have been inherited from his mother.  Therefore the Taylor/Williams and possibly the Webster group are both likely maternal for George.



WORKS IN PROGRESS

List of unresolved Courtney-Paice Triangulated Groups, by chromosome

  • C01_A_M199: Large group, small matches
  • C01_H_M128: Newcomb/Reynolds (Michigan/Canada), Boot/Murray (Bermondsey, Surrey)
  • C01_K_M326: Button?
  • C01_W_M305: NZ
  • C02_D_M126: Newman?
  • C02_M_M117: Cox/Burkhaver, Texas
  • C02_M_M327:
  • C02_M_M123:
  • C03_E_M244:
  • C03_R_M318:  Likely old population segment
  • C03_S_M319:  Likely old population segment

  • C04_D_M248:

  • C04_K_M189:

  • C04_M_M099:

  • C04_N_M314:

  • C04_R_M103:  Pittman/Jackson, Onslow NC (Probable Paice - if same family as M114?)

  • C05_A_M250:
  • C05_A_M252:
  • C05_B_M212:
  • C05_M_M205: Gosset/Newberry, Middlesex, Rich/Sweet, Belson/Pyecroft
  • C05_H_M005: Goddard/Hazell/Hitchman
  • C06: E_M001: Bass/Harkness; Odum? Baker/Griffin, Georgia/Mississippi/North Carolina
  • C07_O_M081:
  • C10_B_M140: Dyball/Partridge, Pyecroft - Norfolk, Gosset/Newberry, Middlesex and Jarman/Brown
  • C12_A_M323: Likely old population segment
  • C12_B_M322: Sweden?
  • C12_D_M321: Clark?
  • C12_I_M272:  Dyball?
  • C21_A_M158:
  • C21_D_M020: 


Unresolved AncestryDNA Clusters
  • M103: Pittman/Jackson, North Carolina; 13 testers identified includes 4 members with triangulated chromosome data C04 (2025);
  • M117: Cox/Burkaver, Texas.  Initial TG to this couple, 2 testers.  However several other Burkhalter matches lead back to Michael Burkhalter b1694 of Switzerland. 6 testers, 3 with chromosome data C02 (2025).
  • M128: Newcombe/Reynolds, Canada; 10 testers identified, only 2 siblings with chromosome data C01 (2025).
  • M169: Rudd/Webster and possibly Webster/Kent: both Middlesex England, 7 Rudd/Webster testers identified includes 2 members with triangulated chromosome data.  Only two close Sullivan/Trodd matches and no other tree triangulation for Webster/Kent but they are in same TG on C09 as known Rudd/Webster matches (2025).
  • M205: Belson/Pyecroft, Norfolk England (later of Michigan).  This is the stronger genetic cluster that eminated from the Rich/Sweet couple.  Beslon/Pyecroft is on the Rich side, but the Sweet line has a Newberry connection that remains of interest. 15 testers in all, 3 members with triangulated chromosome data C05 (2025).


ELIMINATED SEGMENTS

List of identified Triangulated Groups, connected through the family of Abigail Paice.

  • C01_A_M040: Jonathon Paice 1746 
  • C01_D_M162: Abigail Paice 1845
  • C02_A_M114: Abigail Paice 1845 (Pittman group - Illinois, Virginia, MA)
  • C02_I_M172/M115:  Harriet Parker 1819
  • C02_T_M171: Sarah Cave 1776 (not yet triangulated)

  • C03_O_M320: Isaac Paice 1778 (RRS only)

  • C04_K_M189: Likely Parker-Carpenter

  • C05_H_M005: Ann Carter 1731 (not yet triangulated)

  • C06_A_M331: James Paice 1817 (not yet triangulated)

  • C07_A_M174: James Paice 1817
  • C07_K_M170: Sarah Skeats 1737
  • C17_A_M225: Abigail Paice 1845
  • C17_B_M268: Sarah Monk 1786 (not yet triangulated)
  • C20_A_M186: Harriet Parker 1819
  • C21_C_M139: Jonathon Paice 1746 (+ Silas Cole?)
  • C23_G_M197: Abigail Paice 1845


AncestryDNA 'Paice' Clusters
  • M005: Now identified as 'Likely Carter/Isron' c1731 Longstock, Hampshire England.  Includes Goddard/Hitchman, Wantage, Berkshire cluster; 12 testers identified includes 5 members with triangulated chromosome data (2025);


Abigail Paice (wife of George Courtney) 1845-1928


List of unidentified paternal sides from Visual Phasing process, unclear whether they were inherited from Edward Roberts (Baker-Dye/Laundon) or Abigail Courtney.

  • C03_ Now resolved
  • C04 _Now resolved
  • C12_ Now resolved
  • C13_ Now resolved
  • C17_ Now resolved
  • C18_ Now resolved
  • C22_Still unresolved ten years on.....!  However, P1 may be Courtney as it includes descendants of the Burkhalter group from C02.  So far, we know P1 is NOT Paice, but it could be Dye, Laundon OR Courtney .. as at 2025).

Pedigree of my grandfather EA Roberts




2022:  Addendum
We now believe Edward Roberts b1841 was the step-father of Edward Roberts Baker.  His biological father probably a man named Edmund DYE.  My blogpost 'What is our family name?  Roberts, Baker or Dye' tells the story.



Originally published: 15 November 2021

Last Updated:  13 Sep 2025

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