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Origins of the O'Hurleys

According to Peadar O'Donovan's book "Irish Family Names," there were two O'Hurley septs. The O'hUrthaile were descendants of Cormac Cas, a forefather of the Dal Cais. They were prominent in Kilruane parish in Tipperary and in the Golden Vale part of Limerick. One was a chief of Thomond in the 14th century. They were distant kin to other Dalcassians such as the O'Briens.

The other sept, O'Murthaile, was prominent in west Cork (the Carberies). Besides Hurley, the name took the form Murley, Murhilla or Murhilly. Their forefather was Murthaile Mór and they emerged from the Cineal Laoghaire branch of the Eoghanacht.

Murthaile Mór was descended from Eoghan Mór, who was a brother of Cormac Cas. They were sons of Oilill Olum. That is the description in the historical literature.

Randal Ó Murthuile of Ballynacarriga Castle was the leader of the clan. The family built Ballinvard Castle near Rossmore.

The name Hurley in County Cork, particularly in the northwestern part, may have been interchanged with Herlihy. Y DNA testing might spot the distinctions.

Project administrator visiting Ballynacarriga Castle in 2016 with a friend.

Sources of Information

Hurley, Harley,
Herilihy at FTDNA
DNA Portal Records Project Pedigrees
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