* 1904 – Muiris Ó Súilleabháin, Irish writer ( d. 1950 )

* 1900 – Seán Ó Faoláin, Irish author ( d. 1991 )

* 1882 – Pádraic Ó Conaire, Irish writer ( d. 1928 )

The terms geab and geabaire are certainly Irish words but the phrase " geab ar ais " does not exist, and the word gibberish exists as a loan-word in Irish as gibiris, defined by Ó Dónaill as " Gibberish.

In Spain and its territories, many Irish descendants can be found with the name Obregón ( O ' Brien, Irish, Ó Briain ), including Madrid-born actress Ana Victoria García Obregón.

Later Irish immigrants have continued to contribute to Bermuda's makeup, with names like Crockwell ( Ó Creachmhaoil ) and O ' Connor ( Ó Conchobhair ) now being thought of locally as Bermudian names.

Mooney is a family name, which is probably predominantly derived from the Irish Ó Maonaigh.

* 1964 – Liam Ó Maonlaí, founding member of Irish band Hothouse Flowers

* 1923 – Tomás Ó Fiaich, Irish cardinal ( d. 1990 )

* 1964 – Colm Ó Cíosóig, Irish drummer

However, under his usage, the name was written and pronounced according to Irish orthography and pronunciation as " P. Ó Néill ".

In a 1961 survey of megalithic tombs in Ireland, Irish scholars Seán Ó Nualláin and Rúaidhrí de Valera describe four categories of megalithic tombs: court cairns, portal dolmens, wedge-shaped gallery graves, and passage tombs.

Brian Ó Cuív sets out the rules of rhyme in Irish poetry of the classical period: the last stressed vowel and any subsequent long vowels must be identical in order for two words to rhyme.

* November 3 – Tomás Ó Fiaich, Northern Irish cardinal ( d. 1990 )

** Mícheál Ó Cléirigh, Irish chronicler ( d. 1643 )

Their leader bore the ancient Irish title of " An Ó Máille " (" The O ' Malley ", or " The O ' Mealey "-as the name is also anglicised ).

In modern Irish Donegal has produced famous, and sometimes controversial, authors such as the brothers Séamus Ó Grianna and Seosamh Mac Grianna from The Rosses and the contemporary ( and controversial ) Irish-language poet Cathal Ó Searcaigh from Gortahork in Cloughaneely, and where he is known to locals as Gúrú na gCnoc (' the Guru of the Hills ').

* Hugh O ' Neill, Earl of Tyrone ( Aodh Mór Ó Néill ), c. 1550 – 1616, Irish leader during the Nine Years ' War

* in Irish crosswords, the accents on Á É Í Ó Ú are all respected, so ( for example ) the Í in SÍB cannot double as the I in SLIABH.

* Mícheál Ó Cléirigh, Irish chronicler ( 1590 – 1643 )

Lewis's Topographical dictionary ( 1831 ) states that a certain Rory More Dearg O Shaughnessy was the builder but this is probably an explanation from local folklore and not based on any fact as the O Shaughnessy's ( kinsmen of the Ó hEidhin clan ) territory of Kinelea lay five miles southeast of Kinvara.

* Publication of Niall Ó Dónaill's Irish-English dictionary Foclóir Gaeilge-Béarla.

This period also saw remarkable autobiographies from the remote Irish-speaking areas of the south-west-those of Tomás Ó Criomhthain ( 1858 – 1937 ), Peig Sayers ( 1873 – 1958 ) and Muiris Ó Súilleabháin ( 1904 – 1950 ).

* 25 June-Muiris Ó Súilleabháin, writer ( born 1904 ).

Little Wolf ( Cheyenne: Ó ' kôhómôxháahketa, sometimes transcribed Ohcumgache or Ohkomhakit, more correctly translated Little Coyote, c. 1820 – 1904 ) was a Northern Cheyenne Chief.

He is believed to have been in this position since the death of Dáithí Ó Conaill, the first chief of staff, in 1991.

It is the oldest school in Bray and its notable past pupils include the former President of Ireland, Cearbhall Ó Dálaigh.

It is the oldest school in Bray and its notable pupils will include President of Ireland Cearbhall Ó Dálaigh.

The 1975 IRA-British truce is often viewed as the event that began the challenge to the original Provisional Sinn Féin leadership, which was said to be Southern-based and dominated by southerners like Ó Brádaigh and Ó Conaill.

County Donegal is famous for being the home of the once mighty Clann Dálaigh, whose most famous branch were the Clann Ó Domhnaill, better known in English as the O ' Donnell Clan.

D. McCarthy and D. Ó Cróinin propose that Gildas ' 44 years and one month is a reference to the 44th year of an 84-year Celtic Easter cycle used in Britain in Gildas ' day ; the cycle in question commenced in January, 438 AD, allowing them to date the battle to February, 482 AD.

It is worth nothing that Collins himself belonged to the Ó Coileáin family, who in medieval times had been princes of Uí Chonaill Gabra.

Emer is also referenced as part of Táin based imagery in Máirtín Ó Cadhain ' sThe Withering Branch.

The Gaelic-Irish surname Ó Nuadhain (( anglicised as Noon or Noone ) is believed to derive from the forename Nuadha.

It is distinct from Ó Nuanáin ( found in north County Cork and County Limerick ), which a corruption of Ó hIonmhaineáin ; both are now anglicised as Noonan.

In addition, it contained areas known as Trícha cét's, Túath and is the homeland of surnames such as Ó Conchobhair ( O ' Connor ), Mac Diarmada ( McDermott ), Ó Ceallaigh ( Kelly ), Ó Birn ( Beirne, Byrne, Burns ), Mac Donnchadha ( McDonough ) and Brennan ( Mac Branáin and Ó Branáin ).

* Gerard Ó Dochartaigh – Irish language activist for whom the local Gaelscoil ( Irish Language school ) is named.

Gaoth Dobhair in County Donegal is the largest Gaeltacht parish in Ireland, which is home to regional studios of RTÉ Raidió na Gaeltachta and world-class musicians, such as Proinsias Ó Maonaigh, Altan, Moya Brennan ( Máire Ní Bhraonáin ), Enya ( Eithne ), and Clannad, who were all raised with Irish as their first language.

Ó Dálaigh referred the resulting bill, the Emergency Powers Bill, to the Supreme Court.

After consultation with the Council of State, Ó Dálaigh referred the bill to the Supreme Court two days later.

* Charles Murphy ( 1880 – 1958 ), Irish politician more commonly referred to as Cathal Ó Murchadha

In a debate in Dáil Éireann Aengus Ó Snodaigh referred to it as " three spooks and a lord ".