lease join us on an inter-galactic journey through history to explore the genetic genealogy of our forefathers.

f you are a MacMahon (McMahon), or you descend from an ancestor who bore the name, and, you believe you can trace your roots to Counties Clare, Limerick, Kerry, or, Tipperary, then you belong to this Clan.

he MacMahon Clan is committed to summoning ALL the descendants of our progenitor Mahon O'Brien, grandson of the great High King Brian Boru.

hrough the wonders of modern Y-DNA analysis, we will endeavor to assist researchers to corroborate the historical record of the two, very, distinct MacMahon Clan's of Ireland, that of the ancient provinces of Thomond and of Oriel.

t is our hope, that along the way, with a passionate desire to celebrate our common heritage, we will all immerse ourselves in promoting the rich history and culture of Ireland.

s a member of your Clan you will pay no dues, or, fees. And membership is open to all Clare MacMahons, with no restrictions as to race, religion, or gender.

o please contact us to register your membership with the MacMahon Clan. And, of course, we encourage you all to join the McMahon (Monaghan) project at Family Tree DNA. You are invited to view the Monaghan Y-DNA results.

or answers to all your questions; to register your membership; or, to contact us to express your thoughts and ideas, please scroll down to the bottom of these pages and drop us an email. And, please add the clans email address to your list of contacts clanmacmahon@gmail.com.

e thank you for your patience while our site is under construction.