Only Certified Genealogist resident in Ireland

About Heirs Ireland

In a nutshell

We are Heirs Ireland, a family-owned genealogy business based in Dublin, Ireland.

Genealogy is the study of families and the tracing of their lineages and history. Our job as genealogists is one of finding lost loved ones, and helping people reconnect the dots of their lineage.

While curiosity and sentiment are driving factors for some of our customers, most have a more tangible reason. Often it is an inheritence or will that triggers the search for heirs.

Whether you are simply curious about your Irish ancestry, or need an expert who can establish next-of-kinship and testify before a court of law, at Heirs Ireland, we welcome you with open arms.

Why work with us

Heirs Ireland is run by Eileen and Sean Ó Dúill. We have all the credentials you could ever wish for, but more importantly, we have over 4 decades of experience between us and a wealth of embedded knowledge that can make all the difference in complex cases.

Genealogy runs through our veins, and as a family business, our committment to your case is unparalleled.

We sincerely believe we are the best at what we do. But don't take our word for it. Read our testimonials, or get in touch to get a feel of how we work.

We are available round the clock. But that is not the only reason our slogan is Never out of touch.

Because no matter how long it's been, with Heirs Ireland, the trail to your lineage never goes cold.

Watch the video

Meet the team

Eileen Ó Dúill

Eileen Ó Dúill, MA, CG, (nee O’Sullivan) has been a professional Irish genealogist since 1990, specializing in legal and probate research. She has researched over 1000 estates in order to locate the rightful heirs in probate cases. She has been admitted as expert genealogical witness at kinship hearings in 6 of the Surrogate Courts of New York between 1991-2013.

Eileen is a Certified Genealogist, an internationally recognignized qualification granted by the Board for Certification of Genealogists,I (Washington D.C.). She served as a member of the board of the Association of Professional Genealogists of the U.S.A. as the International Trustee for Britain and Ireland (2007-2012). Eileen has lectured at National Genealogical Society Conferences and the Federation of Genealogical Societies Conferences between 1999 and 2012. She is a lecturer on the Diploma in Genealogy programme at University College, Cork.

Eileen wa a member of the Association of Professional Genealogists in Ireland from 1993 to 2013. She served for nine years as a Director of Irish Genealogy Ltd, the government sponsored company which managed the marketing of Irish genealogy. In 2000, Eileen co-authored Irish Civil Registration- Where Do I Begin? with Steven ffeary Smyrl and is recognized as an expert on the General Register Office.

Sean Ó Dúill

Sean Ó Dúill, B.A., H. Dip, is a fluent Irish speaker from Louisburgh, Co. Mayo. He taught in St. Declan’s College, Cabra, Dublin until his retirement. He has published many articles in Irish and English on various aspects of Irish Folklore. He has lectured to genealogists and family historians in Ireland and the United States and was the keynote speaker at the National Genealogical Society conference in Nashville, Tennessee in 2005.

The source of Sean’s research is the 1937 Irish Folklore Commission School Project which was designed to gather and preserve the richness of Irish folklore through school children of 12 to 14 years. By interviewing their grandparents and neighbours in the parish, they were able to reach back to just after the famine period and record the treasures of their elders. Sean is "of the folk" and as he is from within the tradition. He can bring to life the voices of the children, their ancestors and ours.

Sean holds a certificate in Irish translation from the Galway-Mayo Institute of Technology and can read and translate modern and old Irish script.

Sean Mark O Dubhghaill

Sean is our youngest son and graduated from the National University of Ireland in Maynooth.

Sean holds a PhD in Anthropology on the subject in the Irish diaspora from the University of Leuven, Belgium, where he also teaches an Irish (Gaelic) language course.

Sean works with us on a freelance basis, helping out with research and translation.

Laura Ni Dhubhghaill

Laura is our youngest daughter and graduated from Dublin City University.

She works in Dublin as a freelance videographer and editor and is always involved in a multitude of projects.

Laura works with us on a freelance basis, she is our go-to girl for all things multimedia and graphic design.

Alexander Briggs

Alexander is our son in law and graduated from Central Michigan University.

Alex, as we call him, left his teaching job in Detroit for Laura, and an office job, in Dublin.

Alex works with us on a freelance basis, he saves the day when our computers act up, and looks after our website.

Get in touch with Eileen

Eileen M. ÓDúill,CG, Research Director of HeirsIreland, is a Certified Genealogist and a member of the Association of Professional Genealogists. With 24 years experience in more than 1000 international estates, she is one of Ireland’s leading genealogists.