
Of the traditional Uí Maini families, only the leading two have show up under R1b-FGC6540, the O’Kelly and the O’Madden. The Airgíalla McTraynor family also appears to be showing up here; but that is all. So where are all the other Uí Maini families?
The Y-DNA seems to be revealing that the Uí Maini were not a dynastic group like the Dál Cuinn, but rather a federation of people. These are the preliminary hypotheses for the other constituent members of the federation.
- The Uí Fiachroí Find were actually R1b-A1206 Uí Fiachroí Aidne, primarily the Cenél Áeda inda hEchtge. We are seeing a growing O’Naughton presence here with ties back to the correct family; as well as other surnames such as O’Fahy and O’Flanagan.
- The O'Mullally were actually R1b-DF85 Uí Néill, Cenél Conaill as were the "Uí Fiachroí" Mac Fir Bisig. Both of these families are showing up under the R1b-FGC71316 subclade with men who have the right geographical and family history connections.
- Other Uí Maini surnames appear to be showing up under the R1b-FGC5939 Uí Briúin subclade. The initial surnames in this subclade were those of the Uí Briúin Seóla vassal families enumerated in the Muinter Murcháda Tract. However, as this subclade has grown, other interesting surnames have begun showing up. In particular, Cland Maíl Rúanada surnames such as McDermott and McDonough have appeared. Additional surnames such as O’Rowley and O’Flanagan have also appeared. Research into the annals has raised the question as to whether these are the remnants of the Uí Crimthainn of Cruffon.
- Further research has led to the speculation that R1b-FGC5939 MAY be the true descendants of Eóchád Tírmchárna. The split at R1b-Y166841 for the Uí Briúin Aí and R1b-A260 for the Uí Briúin Seóla and the Uí Briúin Bréifne has destroyed the traditional genealogy of the 3 sons of Fergus. There is an outlying genealogy that states that Muiredach Máel had TWO sons: Fergus and Cathal. This genealogy does not state the Uí Briúin Aí descend from Cathal, but the descendants of Cathal would account for the Uí Briúin Aí, while the descendants of Fergus would account for the Uí Briúin Seóla and the Uí Briúin Bréifne. Further, IF R1b-FGC5939 is the clade for the descendants of Eóchád Tírmchárna, it would explain some of the seemingly anomalous entries in the annals for some of their early actions in the Mag Seóla area. This would also explain the animosity between the Uí Briúin Aí and the Uí Briúin Seóla.

