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  • Thomas Gleeson (1790 - 1839)
  • Thomas Lessley (1802 - 1882)
    NOTES ABOUT THOMAS LESSLEY FROM: “The Saga of an American Family” By Dr. John Leslie Carmichael. “Chapter 5, Pg. 49: Mother’s father (Robert) had married at 17, against hi...
  • Fray Cayetano de Otero (c.1701 - c.1768)
    OTERO Haplogroup R1b1a2a1a2c (L21) Galicia Spain/España - "Our Father Cayetano" By Dr. Dionisio (Denis) Ismael HaLevi-Otero The Story of the Otero’s of New Mexico begins in far of...
  • Erik Knutsen Flitti (c.1575 - d.)
    Y-DNA A direct male descendant in this line has tested: R1b M269+, P312+, L21+, DF13+, Z253+
  • Samuel Whidden, I (1643 - 1718)
    The first known ancestor of this Whitten Family in America was Samuel Whidden, a bricklayer and mason of Portsmouth and Greenland, NH. He was first known of in Portsmouth as early as June 24, 1662. In ...

This project is for people who have tested and been assigned the paternal haplogroup R1b1a2a1a2c (L21) and also for people who are believed to have been this paternal haplogroup based on tests done on descendants.


  • R1b1b2a1a2f (ISOGG 2009, 2010)
  • R1b1a2a1a1b4 (ISOGG 2011)
  • R1b1a2a1a1b3 (ISOGG 2012)

Defining Mutations

  • L21/M529


(to be added)


Myres et al. report this group is most common in England and Ireland (25-50% of the whole male population).

Subclades of R

Famous Members

  • (to be added)

How to Participate

Geni Wiki Projects Page

To participate in this project, join or follow the project, then 'add your oldest known ancestor who belonged to this haplogroup. The profile must be set to public in order to add it.