Genealogical Table II


Mahony the Hatter

The Mahonys of Yonkers Blog

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       Books and Articles


Rev. Canon John O'Mahony
J. Cork Arch. & Hist. Soc., 1906-10

"(1) the Sept was the first of the Eoghanacht Clans, descended from Corc, that formed a separate existence; that (2) from the beginning of the sixth century its Chief ruled from Rath Rathleann the territory from Cork to the Mizen Head, including Kinelea called after its tribe-name (3) that the tribeland became the Diocese of Cork in the ecclesiastical organisation of the country; (4) that two of the Chieftains became Kings of Munster; (5) that its pre- dominance in South Munster continued until the twelfth century; (6) that the division into the Eastern and Western Sept took place about the middle of the thirteenth century. Neither of the two branches ever sided with the English against their fellow-countrymen during the long struggle which ended in 1603."

"Slowly and gradually, in the course of some centuries, each individual member of his tribe began to describe himself by the surname at first confined to the chief's family. It would be unreasonable to suppose that the numerous families of the tribe, distinct from Mahon's, that lived in 1035, had no descendants living in the seventeenth century. And, accordingly, it would seem then that the hereditary surname does not imply that each one who bears it descends from the son of Cian, which can be established only by proving descent from a chief or chief's relatives at the time of the disruption of the sept."

S. T. McCarthy, Esq., D.L., M.R.I.A.
Folkestone, 1923

"The great house of O'Mahony was at the height of its power in the 9th century when the Clan territory was supposed to be conterminous with the original diocese of Cork. At that time, and for some three centuries afterwards, the Clan was predominant in South Munster. In the course of time, Dermod Mor, the great grandson of Dermod the first ruler of Ivagha, died in 1327. Before his death he had arranged that Rosbrin and 18 townlands at its foot should be given to his younger sons, Donal and Dermod Oge. But Fineen, his eldest son, refused to carry out this provision for his younger brothers, so they decided to leave Ivagha. Dermod went to Desmond where he received a hospitable welcome and a grant of land from MacCarthy Mor. He thus founded the 'Sliochod Dermod Oge' [Descendants of Dermod, Jr.], or the Kerry Branch of the O’Mahony’s. Dermod Oge appears to have been the common ancestor of all the Kerry Mahonys."

The Mahonys of Kerry
S. T. McCarthy
Kerry Archæological Magazine, 1917-18

"The O'Mahonys (or Mahonys, as they are more generally called in this County)..."
"Corc was one of the three Princes chosen to examine and put in order the monuments of antiquity, genealogy and record of the Kingdom. With these princes were associated the Chief Brehons, as also Saints Patrick, Benignus, and Carioch. Corc however never became a Christian. He selected Cashel as his royal residence, and when he did so he abandoned his previous place of residence, Rath Raithlean, which he then bestowed on his second son, Cas, with the title of 'Ri Raithlean'.''

Daniel of Dunloe
Dan Mahony
Kerry Magazine, Kerry Arch. & Hist. Soc., 1995-96

"His tenants, numbering about four thousand, assemble at night, smocked, with their faces blackened so as to escape recognition, going where directed by Mahony, and being ready at all times to answer his expectations."

                                                           Research Links


Index to Baptisms & Marriages
in Dr. Albert Eugene Casey's O'Kief, Coshe Mang, Slieve Lougher and the Upper Blackwater in Ireland

("The Mother Lode" of  Cork and Kerry genealogy
can be found in the New York Public Library.)

Index to All Kerry Records
O'Kief, Coshe Mang,...
by Beth Mullinax

Complete Index to O'Kief, Coshe Mang,... by Ray Marshall

About O'Kief, Coshe Mang... by Nick Reddan

Mahony Families per Townland,
Cork & Kerry, 1851
  by Dan Mahony

The O'Mahony Society

Irish Local Names Explained
by Dr. P. W. Joyce

Irish Dictionary

Genealogical Abbreviations


Map showing position of County Kerry

Local History and Archives Dept.     Catalogue

Archæological And Historical Society
Index to Journals, 1968 - Present

More Research Links

Killarney Genealogical Centre

Kerry Crest

"The arms are in the familiar green and gold sporting colours of county Kerry. The blue and white dancetty bar symbolises the county's mountains, the highest in Ireland. The crown stands for the Ciarraige, the pre-Gaelic population who gave their name to the county. The two crosses are for the monasteries of Ardfert and Aghadoe. The design is completed by a representation of the boat of  St. Brendan the Navigator. In this boat legend has it that he discovered America. The motto means 'Co-operation, Help, Friendship'."

Kerry Live

Click to enlarge.

Castleisland Grave

Abel's House

Carroll Mahony Ettinger asking question in front of Abel's house, built ca. 1835, now Castleisland Post Office at 146 Upper Main St.  (photo by Kevin Ettinger)

Wren's, Castleisland

Mary Teehan, wife of Abel Mahony (1867), son Anthony Mahony (1900?), son Richard Mahony (1890) circa WW I

O'Mahony Castles, Cork

rosbrin.jpg (548508 bytes)

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Market Lane, Killarney

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St. Mary's, Killarney


St. Mary's

Hawthorne Ave.

Corinthian Club

North Broadway


Dunloe Castle, Killarney
(Jonathan Mahony)


                                                                                                                                Upper Main Street, Castleisland