Airgialla Mag Uidhir

  • 239 members

About us

This project is for all variants of the surnames that make up The Clann Lugain traditionally located in Airghialla included the Maguires, McMahon, MacKernans, MacAuleys, O’Cassidys, O’Corrigans, MacManuses, Breens/Byrnes, and Gurrys.

By using y-DNA testing as a tool with our traditional genealogy research, the project will attempt to connect today's Mag Uidhir lineages, find related family, and hopefully discover where these lineages originated. The project hopes to be able to break through the brick walls created by lack of paper records etc. To that end, a Y-67 level test is required with the Y-111 level including R Deep Clade SNP testing being preferred. Additionally, DYS464x testing is beneficial.

A person’s y-DNA is passed down the male line, from father, to son, to grandson, to great-grandson, etc. with very little change over many generations. A participant must therefore be a male on the Mag Uidhir (or variant) line, or a line that you have genealogical evidence of being originally a Mag Uidhir (or variant) male line. i.e. through a name change, adoption, etc. Female Mag Uidhir can ask a father, brother, grandfather, uncle, cousin or nephew etc. to test, to represent your particular family line.

The project is hoping this will be of interest and help to fellow researchers and interested family members of Mag Uidhir (and variants).
Please visit the Airghialla Mag Uidhir Regional/Surname DNA Project website: Uidhir

History is tricky.  We rely upon written stories, carved headstones, family lore and public records to search for "our path to truth". 

My thanks to Bill McCown for initiating contact with Gail and her amazing research.

Abigail Leibell, nee Coane, is descended from the O'Neills and theO'Donnells.   and is currently in the Republic
of Ireland in Dublin doing research on her own family.  She graciouslyoffered to do some research on my line
and asked me to send a list of names associated with mine.  I did thattaking the names from my Y-DNA matches at 67 markers.

I was tempted to use an outrageous subject title but decided to let herown words carry the message.  Not all
of those receiving copies will agree with what she says, but be awarethat I got some of the same information
from Dr. William Roulston of the Ulster Historical Foundation.  He dida search of names which included some
form of McCown and some form of Maguire in every individual on the hislist.

Personally, I am quite encouraged by her words and by his and I believethat my cousin Sam McCown and a more distant relative, James CharlesMcKown, will be as well.

That said, please scroll down to read what Gail says herself and hercaveats as well.

August 18, 2014.


Dear Bill,


My head is swimming with Maguire history andDNA.  Maguire history, although convoluted, isnota challenge; the DNA aspect of your genealogical search is anothermatter.  Unless you have a background in thisscience,understanding genetic patterns and relationships is like trying todecipherGreek.  With that caveat, here is what Ihave



DNA testing shows that you, your cousin andJim McKown are descendantsof Donn Mor Maguire (AD1302), the first King of Fermanagh. Donn Mor was a descendant of the ThreeCollas, descendants of Milesius of Spain, who defeated their cousinsthe RedBranch Knights of Ulidia.  Descendants ofthe Collas eventually joined with kindred and other unrelated familiesto foundthe Kingdomof Aighialla,which encompassed thecounties of Fermanagh, Cavan and Monaghan.  In DNA terms, from what I have read, you, your cousin Sam andJim McKownall belong to the Airghialla 2 Modal group, specifically L513 > P66+,andapparently are the only Maguires to belong to the P66+ category.

The Maguire clan history also tells us thatthe Maguires are related tothe MacQuarrie family of Scotland,whocome from an island near Mull.  This Scottish connection is not unusual,since many Scottish clans actually have Irish founders. The McQueen/McSweeny clan of Inishowen, Donegal aredescended from Conn of the HundredBattles, High King of Ireland, and theMcKenzies (McKinneys) are descended from the Norman Fitzgeralds whowere drivenfrom Ireland into Scotland.Indeed,the Buchananns, whom you reference as a DNA match, are descendants ofAnselan Buey Ocahan, son of the King of Ulster, who fled Ireland in1016 andemigrated to Argyll in Western Scotland.

Bottom line: the Scottish names on your listof DNA connections maywell have similar Irish bloodlines.  Someof the O’Neills disguised their names as Johnstonafter the English strongly urged the Gaels to anglicize their names.

Names like McMahon, McManus, McAuley,McDonald, Burns and Donohoe all appear tobelong tothe Kingdomof Airghialla,aloosely connected group of families which came to share the samegeographicallocation.

Historically, the Insurrection of 1641 wasled by the Maguire family.  As you and I know, Trinity Collegehas a website which records the actual testimony of the English andScottishsettlers who described the atrocities committed against them by theIrishrebels.  In Fermanaghand elsewhere, Rory Maguire, son of Sir ConorMaguireof the senior branch of the Maguires, wasconsideredthe Captain of the Irish rebels.  I nolonger have access to the Clogher Record,but I thinkI remember reading that Rory had married the widow of a prominent Fermanagh English undertaker, and had moved intoher estatein, or near, the Barony of Lurg, Fermanagh.

We both know the1641 Deposition, which wepreviously discussed, statedthat Capt Rory Maguire, Hugh mc Adeganny(thepriest), Donagh oge,Brian Carragh, Redmond Maguire, and Patand Cahill McChoen  all took part in amassacre at Magheraculmoney in Lurg.

In the 1642 Deposition of Alice Champyn, inthe Barony of Clankelly, in the Manor ofCastle Coole, she names Don Carragh Maguyre,gent, Edmund Carragh Maguyreof Annaharde, and RedmondMcOwin Maguyregent of Fermanagh as murderers of herhusband.  Members of the Maguire familywho survived execution by the English, were on the run and had goodreason todrop their surname and assume the Christian name of an ancestor astheirsurname – perhaps becoming McCown.

In the FermanaghCensus 1669 for Lurg, we find: EdmundMcCone (Culmaine)and Cuchonagh O’Kohan(Cluncagh).  Later,wefind John McCone of Collcan as a 1788 pollelector,as well as McKown in Aghalucher,andMcCown in Galoon.  There are also McCoenslisted in Fermanagh in 1659.

Without further specific information, you’llhave to be content withthe remarkable information which you have collected at this point inyourjourney.  You are a Maguire of the mainroyal line.  That’s quite anaccomplishment!

Warmest wishes,

Abigail C Leibell