O'Ahern
O'Bannon
O'Beirne
Brigid Margaret  b. 19 May 1954
Caroline  b. 21 Feb 1805, d. 10 Jan 1878
Catherine Mary  b. 16 Aug 1960
Cecil Hugh  b. 19 May 1931
Derek Francis  b. 4 Feb 1952
Helen Denise  b. 23 Nov 1969
Henrietta  d. 31 Jan 1731
Hubert V.  d. 30 May 1959
Isabel Mary  b. 14 Oct 1895
Jane  d. 10 Mar 1905
Joseph Francis  b. 12 Dec 1923
Margaret Ellen  b. 22 Jun 1925
Roderick William  b. 17 Feb 1953
O'Boyle
Dorothy Charlotte  b. 10 Jul 1950
Edward  d. 31 Jan 1865
Eliza  d. 24 Feb 1888
James  b. a 1848
Patrick Robert  b. 23 Jul 1780, d. 8 Nov 1827
O'Bready
O'Brian
Clare Josephine  b. 12 Jun 1903, d. c 20 Feb 1998
Eileen Vivien de la Poer  b. 17 Aug 1912, d. 10 May 1975
Maureen  b. 19 Jan 1932, d. 23 Dec 2013
Michael  b. 23 Nov 1937, d. 26 Sep 1968
Shelagh  b. 5 Aug 1934
O'Brian-McSwiney
O'Brien Butler
Aurelia Rebecca  d. 31 Mar 1861
Capel Desmond  b. 1889, d. 7 Jun 1917
Catherine  d. 1834
Catherine  b. c 1730, d. 1807
Catherine Grace  b. 21 Jul 1901
Charles Paget  b. 18 Jul 1881, d. 1 Nov 1914
Edmond  d. 26 Mar 1837
Edmund  d. 1806
Edmund  b. c 1806, d. 15 Jun 1877
Elizabeth  d. 1817
Elizabeth  b. c 1775, d. 1850
Frances  d. 31 Dec 1851
Georgina  d. 19 Oct 1835
Grace  d. 1886
Henry  d. Nov 1857
Ida Mary  b. 8 May 1897, d. 30 Aug 1937
James Eustace  b. c 1883, d. 31 Jul 1887
Jane  d. 18 May 1865
John  d. Jan 1833
John  d. b 1834
Mary  d. b 1839
Mary Anne  d. 1790
Mary Anne  d. 8 Nov 1848
Mary Anne  d. b 1834
Mary Millicent  b. 1876
Millicent Aurelia  b. 3 Mar 1899, d. 26 Oct 1984
Morgan  b. c 1772, d. 10 Jan 1839
Murrough  d. b 1834
Murrough  b. c 1772, d. 10 Jan 1839
Paget  b. 18 Jul 1881, d. 1 Nov 1914
Paget Terence  b. 1 Aug 1911, d. 1952
Pierce  b. c 1772, d. 1812
Pierce  b. 3 Oct 1803, d. 22 Jul 1878
Pierce  b. c 1839, d. 3 Apr 1912
Pierce  b. 1912
Pierce Edmond  b. 12 Jan 1877, d. 15 Jan 1902
Pierce Essex  b. 15 Nov 1858, d. 2 Nov 1954
Pierce John  b. c 1831, d. 6 Apr 1832
Terence  b. 1 Aug 1911, d. 1952
Turlough  b. 12 Apr 1834, d. 15 Aug 1834
William  d. 1773
William  d. 1773
William  d. 22 May 1869
William  d. b 1834
William  b. 1843, d. 12 Oct 1855
William Dunboyne  b. c 1878, d. 11 Jan 1884
O'Brien of Burren
1st Baron, co. Clare (Morrogh)  b. Oct 1614, d. 9 Sep 1674
2nd Baron, co. Clare (William)  b. c 1640, d. Jan 1691/92
3rd Baron, co. Clare (William)  b. c 1666, d. 24 Dec 1719
5th Baron, co. Clare (Murrough)  b. 1726, d. 10 Feb 1808
6th Baron, co. Clare (William)  b. c 1765, d. 21 Aug 1846
7th Baron, co. Clare (James)  b. c 1768, d. 3 Jul 1855
O'Brien of Lothbury
Baron, of the City of London (Leslie Kenneth)  b. 8 Feb 1908, d. 24 Nov 1995
O'Brien
'An tothaine'  b. Oct 1614, d. 9 Sep 1674
'The Fat'  d. 1 Apr 1553
'The Great Earl'  d. 5 Sep 1624
1st Baron, of Kilfenora, co. Clare (Peter)  b. 29 Jun 1842, d. 7 Sep 1914
1st Baronet (Ignatius John)  b. 31 Jul 1857, d. 10 Sep 1930
1st Baronet (Peter)  b. 29 Jun 1842, d. 7 Sep 1914
Agnes Purdom  d. 1970
Aileen  b. 4 Jan 1913
Ailne Mary  d. 1945
Aine  d. 1591
Aine  b. 1578, d. 2 Sep 1606
Alexander Kennedy  b. 30 Mar 1955
Alice Louise  b. 1986
Alicia Amabel  b. 12 Jul 1860, d. 28 Jul 1939
Amy  b. 1578, d. 2 Sep 1606
Anastasia Kathleen Lucia  b. 20 Jan 1856, d. 1 Apr 1938
Angelina Mary  d. 29 Apr 1836
Angelina Rose Geraldine  d. 18 Aug 1941
Ann  b. 17 Sep 1796, d. 31 Jul 1877
Annabella Charlotte  d. 20 Feb 1907
Annalette Leonora Stella  b. 8 Mar 1999
Anne  d. 7 Dec 1756
Anne  d. c 13 Sep 1644
Anne  d. 19 Jan 1745
Anne  d. 20 Jul 1872
Anne  b. 12 Mar 1591/92, d. c Apr 1675
Anne  b. 10 Nov 1788, d. 22 Oct 1874
Anne Maria  d. 24 Dec 1846
Anne Molyneux  b. 17 Dec 1898, d. 10 Aug 1973
Annie  d. 7 Sep 1914
Annie  d. 1 Feb 1929
Annie Winifred  d. 10 May 1936
Anthony Derek  b. 2 May 1947
Antonia  d. 1805
Auberie Anne Penelope  d. 2 Dec 1703
Aubrey John  b. 5 Dec 1870, d. 31 Aug 1930
Aubrey Stephen  b. 4 May 1837, d. 18 Dec 1898
Aubrey Ulick Marshall  b. 7 Jun 1882, d. 1 Nov 1914
Aubrey William Vere  b. 29 Nov 1885, d. 7 Oct 1925
Audrey Mary  b. 21 Aug 1935
Audrey Mary Elizabeth  d. 25 Sep 1925
Audrey Townsend  d. Jan 1957
Augusta Louisa Jane  d. 15 Jan 1861
Barnabas, 5th Earl of Thomond  b. c 1590, d. c 12 Nov 1657
Baroness (Annie)  d. 7 Sep 1914
Bartholomew Brendan  b. 22 Oct 1953
Beatrice  b. 23 Dec 1882, d. 10 Oct 1976
Beatrice Mary  d. 1960
Blanche Louisa  b. 12 Jul 1860, d. 19 Jan 1945
Brendan Edward  b. 11 Jan 1903, d. 1984
Brian  b. 12 Jul 1872, d. 29 Oct 1915
Brian  b. Mar 1908, d. Nov 1968
Brian David  b. 1 Nov 1963
Brian Dermod  b. 14 Jan 1942
Brian Douglas Conor  b. 29 Sep 1997
Brian Edward Nicholas  b. 17 Aug 1951
Brian Eoghan  b. 1907, d. Aug 1940
Brian Murrough Fergus  b. 18 Jul 1931
Bridget M.  d. 4 May 1941
Caroline Phyllis Anne  b. 25 Oct 1942
Catherine  d. Apr 1773
Catherine  d. 4 Mar 1817
Catherine  b. 29 Jan 1673, d. 11 Aug 1706
Catherine Lucia  d. 31 Jan 1865