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Cregan Ancestry Header

Traditional Irish Naming Patterns Sub Header

While researching your Irish ancestry, it's helpful to be aware of Irish customary naming patterns regarding given names:

  • First born son named after his father's father
  • Second born son named after his mother's father
  • Third born son named after his father
  • Fourth born son named after his father's oldest brother
  • Fifth born son named after his father's 2nd oldest brother
    or his mother's oldest brother


  • First born daughter named after her mother's mother
  • Second born daughter named after her father's mother
  • Third born daughter named after her mother
  • Fourth born daughter named after her mother's oldest sister
  • Fifth born daughter named after her mother's 2nd oldest sister
    or her father's oldest sister
Regarding my own Cregan ancestry, if Patrick Cregan & Ellen O'Neal/O'Neill - Cregan adhered to this customary naming pattern and if they did not have any other children besides Bridget & Denis, I can assume that Patrick's father's name was Denis and Ellen's mother's name was Bridget, which may help in finding the previous generation.

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