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Cathcart yDNA Group

William and Mary Cathcart

Group 3: William & Mary
(-1/37 and/or -2/67-Marker Test)

Generation                        
  William          
5G-GF John          
4G-GF Pearson    Samuel  Joseph (the spy)  
3G-GF John McMunn Joseph (the spy?) James Joseph or Joseph, Jr ?  
2G-GF John Kerns2   John C William David John
G-GF

William Clayton		 Jesse Emerson Franklin Nicholas John Stephen, Sr. James Allen Daniel John
GF William Gordon Levi Howell William Albert Hugh A. John Oliver Archibald Beattie
Father Chatham Silas Edward Leroy Benjamin Franklin Charlie James Henry John Brock Norman Beaty
Individual HR  Cathcart*3   RD Cathcart* Gwen Cathcart C. Cathcart* Bu Cathcart* Raymond Franklin Cathcart Ba. Cathcart*

Notes and Interpretations  (click here for legend)

  1. Group 3: descendants of William and Mary Cathcart.
  2. Group 3a: HR and RD share John Kearns Cathcart are 2nd cousins, once removed (sharing John Kerns Cathcart as a MRCA).
    1. They are -1/67 genetically from each other
    2. However, RD—who has tested at the 111-marker level—has closer relationships than the genealogically proven second cousin relationship he shares with HR.  See note 4b below
  3. Group 3/Group 4: HR and Gwen have no known genealogical connection, however...
    1. They match exactly at the 67-marker test level!
  4. Results showing closest genetic relationships outside group 3
    1. HR
      1. -1/67: Ba, RD, C, Bu, Raymond Franklin
      2. -2/67: M, RJam, WJ, BG, RJac
      3. -3/67: A, SL, John Thomas
      4. -4/67: DM, SK
    2. RD
      1. 111-marker results:
        > 0/111: C (click here for more details about this match)
        > -1/111: Ba, Bu
        > -2/111: Raymond Franklin
      2. 67-marker results:
        > 0/67: Ba, C, Bu, Raymond Franklin
        > -1/67: HR, RJam, WJ, BG, Gwen
        > -2/67: SL, John Thomas
        > -3/67: M, DM, RJack

  5. Although Brian Russell’s surname is not Cathcart, his Y-111 test places him clearly within the Ulster/Scottish Cathcart founder cluster (R-M269). A detailed STR comparison shows:

    • 1/111 genetic distance from Charles Cathcart (Samuel/Spartanburg line)

    • 1/111 genetic distance from Richard Douglas Cathcart (William & Mary line)

    • 3/111 distance from Barrie Cathcart (Kells/Connor → Australia)

    • 3/111 distance from Buddy Cathcart and Ryan P. Cathcart (Joseph the Spy line)

    A GD of 1/111 is exceptionally close and strongly suggests that Brian and those Cathcart testers share a paternal ancestor within the last 200–300 years (possibly sooner). In contrast, a GD of 3/111 is consistent with a much earlier branching, typically in the 1600s–early 1700s.

    Brian’s STR pattern matches the modal values of the William & Mary Cathcart subgroup (Lanarkshire → York County, SC), especially at DYS439, DYS460, CDY, DYS534, DYS710, and related multi-copy markers. His profile does not match the distinctive Kells/Connor signature seen in Group 1g—even though both he and Barrie now live in Australia.

    This means that Brian’s paternal line and Barrie’s paternal line arrived in Australia independently, from two different branches of the broader Ulster Cathcart family.

    Conclusion:
    Brian Russell belongs in Subgroup 1d — William & Mary Cathcart, or a closely related sister branch. His placement strengthens the overall structure of the Ulster/Scotland Cathcart cluster and helps clarify branching within Group 1.

Legend

Proven | Likely | Conjecture | Common Ancestor | Patriarch/Group see group page

* Participant has not approved release of his name

If Available, Click   for Individual's page, and for outline descendancy chart

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