Research Topics

Irish Migration
UPDATED 2020 Humans first arrived in Ireland around 10,000 years ago after the last ice age. It is believed that their... More
Analysis of Sullivan Surname
UPDATED APRIL 2020. Approximately 66% of the present population of the Island of Ireland are descendants of ‘Native... More

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First Ever Plantation Surnames of Ireland Map

The Plantation Surnames of Ireland (Scots-Irish) Map is now available to purchase (click here).

The Origin of the Irish and Scottish Gaels as revealed by their DNA

Celts and Romans fightingPART II: The origin of the Gaels has remained a mystery until the advent of modern commercial ancestral DNA testing.

The DNA of the Irish Gael

PART I. The hundreds of DNA Case Studies performed at Irish Origenes have revealed some fascinating findings with regards the ancestry of the Irish male.

Gortlassabrien and the Thomond O'Briens

(Updated December 2021) The surname ‘O'Brien’ literally means 'descendant of Brian,' the most notable ‘Brian’ in Irish history being the High King of Ireland ‘Brian Boru.’ Brian Bor

When did R-M222 first appear in Inishowen?

By examining the genetic distance between selected members of the R-M222 family and comparing it to the timetable developed by Scottish Origenes one can determine when the R-M222 Adam lived.

The Spread of M222

‘Vikings,’ ‘Foreign Helpers’ and ‘Raiders from across the Sea’

Putting a time frame to DNA Mutation Rates!

Anybody who has taken a simple painless commercial ancestral YDNA test (which explores only your paternal ancestry) will potentially have matched many people with lots of different surnames and will have wondered when their shared male ancestor lived?

Targeted Recruiting for DNA testing

The beauty with the DNA approach to researching one’s ancestral origin is that the DNA does not lie!

Irish Origenes Viking Ireland Report and Map

A number of years ago a study by an Irish research lab failed to detect any Viking DNA in a small sample of Irish people with Viking-associated surnames.

The Ferris Surname in Britain and Ireland

Surnames evolve over both time and distance, and change usually at the whim of an administrator who simply records an unfamiliar surnam

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English Origenes

Scottish Origenes