O'Callaghan Genealogy

About 1050 O'Callaghans. Related surnames: CALLAHAN (5291) CALLAGHAN (3226) OCALLAHAN (56) CALLAGAN (33).

WikiTree is a community of genealogists — including 23 O'Callaghan genealogists and amateur family historians — dedicated to growing an accurate collaborative family tree that's 100% free and accessible to everyone forever.   Please join us.


Here are the 200 most-recently added or edited O'Callaghan members, cousins, and ancestors. Click here to search all 1,050.

Privacy Level: Private with Public Family Tree (Yellow) managed by Patricia O'Callaghan / last edited 15 Apr 2024 / Active member137
abt 1907 Wellington, New Zealand - abt 1955 / last edited 13 Apr 2024
abt 1891 Melbourne, Victoria (Australia) - 1962 / last edited 13 Apr 2024
abt 1764 Lisbon, Portugal / last edited 12 Apr 2024
17 May 1898 Donaghmore, East Muskerry, County Cork, Ireland - 07 Aug 1958 / managed by Anonymous O'Donovan / last edited 9 Apr 2024
27 Feb 1797 Mallow, County Cork, Ireland - 29 May 1880 / managed by Lorraine O'Dell / last edited 9 Apr 2024
1920s Privacy Level: Private (Red) managed by Hilary Gadsby / last edited 8 Apr 2024
1919 Bournemouth, Hampshire, England, United Kingdom / last edited 8 Apr 2024
1880s - 1950s Privacy Level: Private (Red) managed by Hilary Gadsby / last edited 8 Apr 2024
abt 1847 Ireland - 1909 / last edited 7 Apr 2024
16 Feb 1873 Oxford, Oxfordshire, England, United Kingdom - 06 Jun 1963 / managed by Jim Jones / last edited 7 Apr 2024
abt 17 Nov 1892 Mallow, County Cork, Ireland - Jan 1951 / managed by Gerald Briggs / last edited 5 Apr 2024
bef 26 Jan 1845 Magourney, County Cork, Ireland - 11 Feb 1940 / managed by Sarah Hewitt / last edited 2 Apr 2024
28 Sep 1840 Magourney, County Cork, Ireland - 29 Jun 1937 / managed by Sarah Hewitt / last edited 2 Apr 2024
bef 19 Apr 1839 Magourney, County Cork, Ireland - 21 May 1927 / managed by Sarah Hewitt / last edited 2 Apr 2024
1790 Nadrid, County Cork, Ireland - 12 May 1879 / managed by Sarah Hewitt / last edited 2 Apr 2024
bef 29 May 1837 Magourney, County Cork, Ireland / managed by Sarah Hewitt / last edited 2 Apr 2024
bef 24 Dec 1835 Magourney, County Cork, Ireland - abt 1879 / managed by Sarah Hewitt / last edited 2 Apr 2024
22 Oct 1834 Magourney, County Cork, Ireland / managed by Sarah Hewitt / last edited 2 Apr 2024
abt 1833 - 01 Oct 1904 Kinsale, County Cork, Ireland / managed by Sarah Hewitt / last edited 2 Apr 2024
abt 1830 Donaghmore, East Muskerry, County Cork, Ireland - abt 1900 / managed by Anonymous O'Donovan / last edited 30 Mar 2024
02 Jul 1856 Donaghmore, East Muskerry, County Cork, Ireland - 30 Mar 1941 / managed by Anonymous O'Donovan / last edited 30 Mar 2024
15 Jun 1877 Lansing, Ingham, Michigan, United States - 05 Apr 1954 / last edited 30 Mar 2024
/ last edited 30 Mar 2024
bef 15 Feb 1798 Ireland - 16 Apr 1868 / last edited 28 Mar 2024
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by D O'Callaghan / last edited 27 Mar 2024
O'Callaghan-1107 abt 1816 - 01 Apr 1898 Corowa, New South Wales, Australia / last edited 27 Mar 2024
abt 1863 County Cork, Ireland / managed by Lucy Selvaggio-Diaz / last edited 27 Mar 2024
abt 1887 Cork, County Cork, Ireland - abt 1957 / managed by Gerald Briggs / last edited 26 Mar 2024
abt 1856 Kilnap, Cork, Ireland - abt 1920 / managed by Gerald Briggs / last edited 26 Mar 2024
abt 1890 Cork, County Cork, Ireland - abt 1960 / managed by Gerald Briggs / last edited 26 Mar 2024
abt 1896 Cork, County Cork, Ireland - abt 1966 / managed by Gerald Briggs / last edited 26 Mar 2024
abt 1894 Cork, County Cork, Ireland - abt 1964 / managed by Gerald Briggs / last edited 26 Mar 2024
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Michael O'Callaghan / last edited 24 Mar 2024
1860 Beechworth, Colony of Victoria / managed by Kaye Mansfield / last edited 22 Mar 2024
aft 1688 - aft 1730 / managed by V. Heering / last edited 20 Mar 2024
04 Feb 1901 Queensland, Australia / last edited 19 Mar 2024
abt 1866 Brisbane, Queensland, Australia - 1959 / managed by Kathleen Cobcroft / last edited 19 Mar 2024
1897 Dublin, ireland / last edited 14 Mar 2024
12 Jul 1913 Stockport, Cheshire, England - Mar 1994 / managed by Andrew Farnsworth / last edited 14 Mar 2024
1940s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Edward O'Callaghan / last edited 13 Mar 2024 / Active member146
1880 Southampton, Hampshire, England / managed by D J Mason / last edited 13 Mar 2024
1855 Cork, County Cork, Ireland / last edited 12 Mar 2024
11 Oct 1885 Christchurch, Canterbury, New Zealand - 20 Aug 1960 / managed by Sarah Hewitt / last edited 11 Mar 2024
16 Sep 1918 New Zealand - 08 Nov 2002 / last edited 11 Mar 2024
06 Apr 1914 New Zealand - 06 Aug 1970 / last edited 11 Mar 2024
abt 1897 Cork, County Cork, Ireland - 28 Feb 1921 / managed by Patrick Holland / last edited 3 Mar 2024
27 Aug 1838 Dublin, Ireland - 29 May 1925 / managed by Tom Gerber / last edited 2 Mar 2024
24 Apr 1919 Kimberley, Cape Province, South Africa - 04 Mar 2017 / managed by Stephanie Boerman / last edited 29 Feb 2024
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Lori O'Callaghan / last edited 28 Feb 2024
O'Callaghan-628 abt 1854 Castlemaine, Colony of Victoria, Australia - 07 Apr 1928 / managed by Peter Cogan / last edited 26 Feb 2024
1960s Privacy Level: Private (Red) managed by Sean O'Callaghan / last edited 21 Feb 2024 / Active member153
23 Feb 1922 Klamath Falls, Klamath, Oregon, United States - 27 Feb 2015 / managed by David Hunter / last edited 20 Feb 2024
abt 1924 Klamath Falls, Klamath, Oregon, United States - 21 Sep 2002 / managed by David Hunter / last edited 19 Feb 2024
abt 1892 - 15 May 1930 Klamath Falls, Klamath, Oregon, United States / managed by David Hunter / last edited 19 Feb 2024
1940s Privacy Level: Private with Public Family Tree (Yellow) managed by Margaret Tilley / last edited 11 Feb 2024 / Active member10
1804 Ireland - 23 Feb 1887 / managed by Ryan Fisler / last edited 9 Feb 2024
02 Oct 1775 County Tipperary, Ireland - 30 May 1857 / managed by Ryan Quinn / last edited 9 Feb 2024
1872 - 1909 Inglewood, Victoria, Australia / last edited 6 Feb 2024
26 Dec 1862 - 09 Jun 1930 / last edited 5 Feb 2024
22 Mar 1859 Hamilton, Victoria, Australia - 19 Jul 1930 / managed by Geoff Davis / last edited 4 Feb 2024
- 27 Oct 1922 Queensland, Australia / last edited 31 Jan 2024
abt 1815 Dublin, Ireland / last edited 30 Jan 2024
abt 1848 Dublin, Ireland / last edited 30 Jan 2024
abt 1850 Ireland - bef 1920 / managed by Tony Varey / last edited 29 Jan 2024
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Billy O'Callaghan / last edited 24 Jan 2024
1820 Ballinachinch Tulla, Co. Clare, Ireland - 1870 / managed by Roger Lloyd / last edited 21 Jan 2024
07 Sep 1877 Queensland, Australia - 25 Jul 1942 / managed by H O'Brien / last edited 17 Jan 2024
20 Oct 1866 Newcastle West, County Limerick, Ireland - 13 Jan 1923 / last edited 15 Jan 2024
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Ellen O'Callaghan / last edited 15 Jan 2024 / Active member1
O'Callaghan-248 10 Sep 1929 La Crosse, Wisconsin, United States - 05 Mar 2004 / last edited 10 Jan 2024
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Ella O’Callaghan / last edited 4 Jan 2024
1960s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Susan O’Callaghan / last edited 3 Jan 2024 / Active member45
1810 Ireland / managed by Jorge Gubbins / last edited 2 Jan 2024
1830 Cork, County Cork, Ireland - 22 Feb 1907 / last edited 2 Jan 2024
1878 Heckington, Lincolnshire, England - 22 Aug 1964 / last edited 1 Jan 2024
1877 Ravenfield, Yorkshire, England - 26 May 1960 / last edited 1 Jan 2024
1874 - 17 Dec 1932 Queensland, Australia / last edited 1 Jan 2024
13 Apr 1865 Belper, Derbyshire, England - 18 Jun 1943 / last edited 1 Jan 2024
1855 Belper, Derbyshire, England - 01 Jan 1909 / last edited 1 Jan 2024
abt 1917 - aft 1939 Dublin / managed by Hugh Mc Nelis / last edited 26 Dec 2023
1912 Cork, County Cork, Ireland - 1956 / managed by Paul Snook / last edited 15 Dec 2023
01 Apr 1914 Marylebone, Middlesex, England - 09 Feb 2011 / managed by Michael Fraser-Allen / last edited 10 Dec 2023
O'Callaghan-203 05 Sep 1907 Alameda, California, United States - 27 Oct 2003 / last edited 10 Dec 2023
06 Sep 1894 Terowie, South Australia - 11 Nov 1958 / managed by Sharon McArthur / last edited 8 Dec 2023
abt 1888 - abt 03 Apr 1972 Ivanhoe, Victoria, Australia / last edited 5 Dec 2023
abt 1816 - 16 Oct 1883 Eltham, Victoria, Australia / last edited 5 Dec 2023
abt 1851 Melbourne, Victoria, Australia - abt 12 Jul 1872 / last edited 5 Dec 2023
O'Callaghan-1101 abt 1891 - abt 17 Jul 1965 Mont Park, Victoria, Australia / last edited 5 Dec 2023
abt 1893 - abt 17 Jul 1963 Eltham, Victoria, Australia / last edited 5 Dec 2023
abt 1890 - 21 Jan 1933 Eltham, Victoria, Australia / last edited 5 Dec 2023
O'Callaghan-1099 abt 1848 - 14 Mar 1896 Eltham, Victoria, Australia / last edited 5 Dec 2023
1970s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Angela O'Callaghan / last edited 25 Nov 2023 / Active member2238
abt 1857 Castlemaine, Victoria, Australia - Nov 1920 / last edited 25 Nov 2023
abt 1848 Middlesex, England, United Kingdom / managed by Anonymous Farnham / last edited 12 Nov 2023
1809 County Tipperary, Ireland - 1849 / managed by Anonymous Farnham / last edited 12 Nov 2023
1845 London, England, United Kingdom / managed by Anonymous Farnham / last edited 10 Nov 2023
abt 1862 / managed by Bob Gallagher / last edited 10 Nov 2023
1882 / managed by Sandra Lambert / last edited 5 Nov 2023
23 Aug 1914 New Zealand - 2006 / managed by Jeff Thomas / last edited 23 Oct 2023
abt 1872 Ireland - 1943 / managed by Mark Townsend / last edited 22 Oct 2023
1950s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Joan Morley / last edited 22 Oct 2023 / Active member17
abt May 1859 Carndonagh, Inishowen, Co Donegal, Ireland - 26 Mar 1897 / managed by Frank O'Connor / last edited 15 Oct 2023
O'Callaghan-290 05 Oct 1886 Chicago, Cook, Illinois, United States - 20 Jul 1977 / managed by Scott Fulkerson / last edited 11 Oct 2023
abt 1850 Ireland / last edited 5 Oct 2023
O'Callaghan-675 03 Feb 1929 Sydney, Cape Breton, Cape Breton, Nova Scotia, Canada - 16 May 2009 / managed by Susan O’Callaghan / last edited 5 Oct 2023
1808 County Limerick, Ireland - 1884 / managed by Pamela Monaghan / last edited 4 Oct 2023
abt 1913 - 16 Sep 2000 New South Wales, Australia / last edited 30 Sep 2023
1832 County Wicklow, Ireland - 06 Sep 1920 / managed by Jo-Anne Riolfo / last edited 27 Sep 2023
abt 1800 Drumellihy, County Clare, Ireland - abt 16 Mar 1868 / managed by Denis Callinan / last edited 24 Sep 2023
1892 New Zealand - 1968 / managed by Dianne Fullerton / last edited 18 Sep 2023
07 Jan 1741 Ireland - 12 Jul 1797 / managed by Max Callaghan / last edited 17 Sep 2023
25 Aug 1849 Ireland - 07 May 1929 / managed by Rhonda Schneringer / last edited 14 Sep 2023
abt 1826 Ireland / managed by Bob Gallagher / last edited 13 Sep 2023
28 Oct 1915 Canada - 07 Jul 1987 / managed by Lance Martin / last edited 12 Sep 2023
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Jack Ocallaghan / last edited 5 Sep 2023
06 Jul 1834 England, United Kingdom - 1900 / last edited 5 Sep 2023
abt 1840 - abt 1900 / managed by Laura Jackson / last edited 2 Sep 2023
03 Sep 1892 New Zealand - 15 Dec 1979 / last edited 31 Aug 2023
25 Apr 1821 St Finbar's, Cork City, County Cork, Ireland / managed by Judith Hoffman / last edited 20 Aug 2023
abt 1800 County Cork, Ireland / managed by Judith Hoffman / last edited 20 Aug 2023
abt 1895 Victoria, Australia / managed by Jim Turpy / last edited 12 Aug 2023
abt 14 Sep 1842 Deutscher Bund - 05 Jul 1919 / managed by Donald Cortesi / last edited 10 Aug 2023
1914 Wirrimburchip, Victoria, Australia / last edited 23 Jul 2023
1918 Ouyen, Victoria, Australia / last edited 23 Jul 2023
1916 Ouyen, Victoria, Australia / last edited 23 Jul 2023
1912 Woomelang, Victoria, Australia / last edited 23 Jul 2023
1910 Woomelang, Victoria, Australia / last edited 23 Jul 2023
1909 Woomelang, Victoria, Australia / last edited 23 Jul 2023
1908 Wirrimbirchip, Victoria, Australia / last edited 23 Jul 2023
1906 Wirrimbirchip, Victoria, Australia - 11 Apr 1973 / last edited 23 Jul 2023
abt 1835 United Kingdom / managed by Kelly Blight / last edited 18 Jul 2023
1832 Boherbue, County Cork, Ireland - 31 Mar 1918 / managed by Virginia Miltrup / last edited 16 Jul 2023
07 Aug 1871 Mount Gambier, Grey District, South Australia - 18 Feb 1931 / managed by Daryl Murphy / last edited 16 Jul 2023
16 Mar 1815 County Dublin, Ireland - 29 Oct 1898 / managed by John Tyner / last edited 8 Jul 2023
1846 St George Hanover Square, Middlesex, England, United Kingdom - abt 1885 / managed by John Tyner / last edited 8 Jul 2023
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by John O'Callaghan / last edited 2 Jul 2023
05 Sep 1847 Cecilstown, County Cork, Ireland - 31 Aug 1931 / last edited 25 Jun 2023
abt 1848 Cloyne, Cloyne parish, Co. Cork, Ireland - 06 Apr 1931 / managed by David Harrington / last edited 16 Jun 2023
O'Callaghan-531 abt 1900 Cape Colony, South Africa - 15 Oct 1971 / managed by Brian McQueen / last edited 15 Jun 2023
16 Nov 1893 Yatala, South Australia, Australia - 18 Feb 1938 / managed by Lex Harry / last edited 12 Jun 2023
26 Dec 1882 Brisbane, Queensland, Australia - 21 Sep 1971 / last edited 3 Jun 2023
10 Nov 1910 Queensland, Australia - 08 Jun 1987 / last edited 3 Jun 2023
24 Apr 1919 Queensland, Australia / last edited 3 Jun 2023
29 Aug 1914 Queensland, Australia / last edited 3 Jun 2023
18 Oct 1912 Queensland, Australia / last edited 3 Jun 2023
12 Aug 1909 Queensland, Australia - 12 Nov 1910 / last edited 3 Jun 2023
19 Oct 1916 Queensland, Australia / last edited 3 Jun 2023
20 Oct 1907 Queensland, Australia - 12 Jul 1982 / last edited 3 Jun 2023
16 Mar 1878 Queensland, Australia - 30 Jan 1960 / last edited 3 Jun 2023
19 Oct 1916 Queensland, Australia / last edited 3 Jun 2023
1909 Woomelang, Victoria, Australia - 1955 / last edited 2 Jun 2023
abt Apr 1841 Cork, County Cork, Ireland - 29 Dec 1917 / last edited 26 May 2023
1897 Heidelberg, Melbourne, Victoria, Australia - 1983 / last edited 26 May 2023
1863 County Cork, Ireland - 1944 / last edited 23 May 2023
1897 Bright, Victoria, Australia / managed by Mark Dorney / last edited 23 May 2023
1892 Penshurst, Victoria, Australia / last edited 23 May 2023
1890 Sandford, Victoria, Australia / last edited 23 May 2023
07 Feb 1895 Queensland, Australia - 02 Sep 1993 / managed by Veni Joyner / last edited 22 May 2023
14 Apr 1821 Carrignavar, County Cork, Ireland - 26 Feb 1897 / last edited 20 May 2023
12 May 1885 Cape Town, Western Cape, South Africa - 20 Jan 1969 / managed by Paddy Waldron / last edited 15 May 2023
1817 Ireland - 30 Apr 1900 / managed by Juan Ignacio Bieta / last edited 14 May 2023
1782 Mallow, County Cork, Ireland - 1865 / managed by Renee Nagle / last edited 13 May 2023
abt 1837 Cork, County Cork, Ireland - 1915 / last edited 7 May 2023
abt 1895 Lake Marmal, Victoria, Australia - 14 Mar 1967 / managed by Graeme Watson / last edited 1 May 2023
23 Jan 1867 County Wexford, Ireland - 19 Jun 1942 / managed by Anon Sharkey / last edited 1 May 2023
1832 County Wexford, Ireland - 1890 / managed by Anon Sharkey / last edited 1 May 2023
14 Dec 1896 New York City, New York, United States - 04 Dec 1960 / managed by Susan O’Callaghan / last edited 30 Apr 2023
1980s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Elmie O'Callaghan-ludick / last edited 26 Apr 2023 / Active member72
abt 1891 Massachusetts, United States / managed by Rory Rafferty / last edited 23 Apr 2023
abt 1889 Massachusetts, United States / managed by Rory Rafferty / last edited 23 Apr 2023
abt 1863 Ayer, Ayer, Middlesex, Massachusetts, United States - 12 May 1941 / managed by Katie Pittman / last edited 23 Apr 2023
abt 1900 Medford, Middlesex, Massachusetts, United States - 15 Sep 1950 / managed by Rory Rafferty / last edited 23 Apr 2023
12 Sep 1913 County Clare, Ireland - 08 Nov 1986 / managed by Simone Cody / last edited 22 Apr 2023
18 Feb 1864 Mary Fort, County Clare, Ireland - 30 Jul 1944 / managed by Simone Cody / last edited 22 Apr 2023
Sep 1909 County Clare, Ireland / managed by Simone Cody / last edited 22 Apr 2023
1899 Dublin, County Dublin, Ireland / managed by Simone Cody / last edited 22 Apr 2023
23 Apr 1896 Coolreagh, County Clare, Ireland / managed by Simone Cody / last edited 22 Apr 2023
abt 1826 Ireland - 24 May 1898 / last edited 22 Apr 2023
15 Jun 1788 County Clare, Ireland - 31 Jan 1849 / managed by Simone Cody / last edited 22 Apr 2023
05 Aug 1841 Mary Fort, County Clare, Ireland - 1916 / managed by Simone Cody / last edited 22 Apr 2023
12 Oct 1836 Mary Fort, County Clare, Ireland - 10 Dec 1895 / managed by Simone Cody / last edited 22 Apr 2023
15 Jan 1835 Mary Fort, County Clare, Ireland - 12 Apr 1836 / managed by Simone Cody / last edited 22 Apr 2023
26 Oct 1833 Mary Fort, County Clare, Ireland / managed by Simone Cody / last edited 22 Apr 2023
20 Jul 1832 Mary Fort, County Clare, Ireland / managed by Simone Cody / last edited 22 Apr 2023
20 Dec 1830 Mary Fort, County Clare, Ireland / managed by Simone Cody / last edited 22 Apr 2023
27 Mar 1828 Mary Fort, County Clare, Ireland / managed by Simone Cody / last edited 21 Apr 2023
08 Jan 1827 Mary Fort, County Clare, Ireland - 06 Jan 1856 / managed by Simone Cody / last edited 21 Apr 2023
1930s - 1970s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Colleen Smith / last edited 21 Apr 2023
1960s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Colleen Smith / last edited 21 Apr 2023 / Active member18
26 Aug 1897 DERRYGELLON, Dromtariffe, County Cork, Ireland / managed by Ellen Mary Lane / last edited 21 Apr 2023
abt 1944 Louisiana, United States - 28 Feb 2015 / managed by Rory Rafferty / last edited 16 Apr 2023
17 Mar 1894 New Zealand - 1981 / managed by Jeff Thomas / last edited 16 Apr 2023
16 Jul 1875 Ballarat, Victoria, Australia - 23 Dec 1951 / managed by Patricia O'Callaghan / last edited 1 Apr 2023
abt 1840 Tubbercurry, Sligo, Ireland - 13 Apr 1893 / managed by Patricia O'Callaghan / last edited 1 Apr 2023
18 Apr 1919 Carlton, Victoria, Australia - 17 Jan 1970 / managed by Patricia O'Callaghan / last edited 31 Mar 2023
abt 01 Jul 1879 Alexandria, Cape Province, South Africa - 26 Oct 1957 / managed by Stephanie Boerman / last edited 30 Mar 2023
1940s - 1980s Privacy Level: Private with Public Family Tree (Yellow) managed by Kerry Conder / last edited 29 Mar 2023
abt 06 Jun 1921 Ireland - abt 1993 / managed by Kerry Conder / last edited 29 Mar 2023
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Aileen O'Callaghan / last edited 29 Mar 2023

Please join us in collaborating on O'Callaghan family trees. We need the help of good genealogists to grow a completely free shared family tree to connect us all.

Genealogy  >  OCALLAGHAN
A | B | C | D | E | F | G | H | I | J | K | L | M | N | O | P | Q | R | S | T | U | V | W | X | Y | Z