Some more History of the name... (added 14.3.09)
With Acknowledgement to ...
Clans and Families of Ireland and Scotland
IX. The Gaels
......were dispersed as a result of the Anglo-Norman invasion, and some of them settled afterwards in Tipperary.
The Fir Teathbha ("men of Teffia," an ancient semi-independent district covering a wide territory along the River Shannon and the north of Lough Ree in what is now the south of County Longford) trace their descent back to Maine, son of Nial of the Nine Hostages. Their original clan-territory embraced a great portion of what is now County Westmeath and also what is now the barony of Kilcoursey in the present County Offaly. Their chief representatives in later times were the O’Caharneys or Foxes of Muintear Tad hgain; also the Corca Adhaimh or the O’Dalys; also the MacAwleys; Muintear Mhaoilsionna or the MacCarons, and finally the O’Brennans.
The Muintear Tadhgain (descendants of Tadhgain, ninth of the line of Maine), the O’Caharneys or O’Kearneys (O Catharnaigh) also known as the Foxes (Sionnach), were originally chiefs of all Teffia, but in later times (after the Anglo-Norman invasion) their territory was restricted to Muintear Tadhgain, now the barony of Kilcoursey in Offaly. They were known by the surname of Sionnach, or Fox, from the cognomen of their ancestor, Catharnach Sionnach (Caharney the Fox), who was slain in the year 1084. The head of the family was known by the title of "An Sionnach" or the fox. It was one of the men of An Sionnach that assassinated the Norman de Lacy for making unnegotiated encroachments into O’Caharney territory. In the sixteenth century the head of the family was knighted and fell in with the English under Queen Elizabeth I.
The MacAwleys (Mac Amhalghaidh) were, prior to the English conquest of the sixteenth century, lords of a wide territory known as Calry (Calraighe) which in its broadest extent comprised land in the west of County Westmeath and north of County Offaly, but which was centered on Ballyloughloe in Westmeath. This territory was known to the English as MacGawley’s Country. The MacCarons (Mac Carrghamhna, formerly Mac Giolla Ultain) descend from Carrghamhain, grandson of Giolla Ultain, great-grandson of Maoilsionna (whose name means "chief of the Shannon"), from whom they get their clan-name of Muintear Mhaoilsionna. They thus originally commanded a terrritory on the east side of the River Shannon in Westmeath, and it is there that the MacCarons, or Growneys (O Gramhna, a corruption of "Mac Carrghamhna") are found in later times. Their territory was known by the name of Cuircne, now the barony of Kilkenny West in northwest County Westmeath. These lands passed into the possession of the Dillons not long after the AngloNorman invasion of the twelfth century, though the MacCarons maintained some independence as a clan down to the seventeenth century. In 1578 the English government granted one of them the office of "chief sergeant of his nation" along with lands in the "ploughland of Kilmacaron, which of old belonged to the chief of the nation of M’Caron."