O’Commeen family genealogy
Arms: Gu. three garbs ar.
The ancient Irish sept of O’Cuimin (anglicised O’Commeen, O’Cummins, Cummins, and Commen) was a branch of the Ui-Fiachrach of North Connaught, and was paramount in Mayo and Sligo, before the English invasion. From a saint of the family, Kilcommeen (modernized “Kilcummin”), near the town of Ballycastle, Mayo, takes its name.
The founder of the sept was Fiacha Elgach, son of the Monarch Dathi, the son of Fiachradh, son of Eochaidh, son of Muireadach, son of Fiacha Srabhteine, the 120th Monarch, who is No. 84 on the “O’Neill” (Princes of Tyrone) stem—See Vol. I., p. 708.
During the reign of Conn Baccach O’Neill, King of Ulster, the Chieftain of this Sept, with his family, removed to Munster, and some of his descendants settled in the county of Cork, and some in Waterford. At present we are unable to give the pedigree; but we learn that some of the family reside in and to the south of Bandon. The present head of this sept in Cork, is John O’Cuimin (or Cummins), Esq., South Main-street, Bandon, whose sons are Jeremiah and Thomas. This John is brother to Thomas O’Cummins, Esq., wine merchant, Bandon, and to the Rev. Jeremiah O’Cummins, the zealous and pious P.P. of Templemartin, Murragh, Kinneigh, and Kilowen.