Langan surname Y-DNA Project

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A Langan surname Y-DNA project has just been started at
http://www.familytreedna.com/public/langan/default.aspx.   
   
The earliest known ancestor (Patrick Langan c1800) of the initial Langan test subject is from County Mayo, Ireland and belongs to the Atlantic modal haplogroup R1b1a2 (or R1b1b2 by the former nomenclature).  The majority of close matches in the DNA databases are also from Ireland, indicating Gaelic ancestry.   
 
"The Great Tom Langan" 1921-1974 of Gaelic football fame and Irish Rugby star, Ronan O'Gara (the record point scorer with over 100 caps), are both directly descended from this same Patrick Langan c1800. 
 
If you are interested in joining the project, a 37 marker Y-DNA test is recommended as the best compromise between adequate markers and price, but all results are welcome. 
   
David Gallagher 
Co-administrator for Langan surname Y-DNA project