Grennan Genealogy

About 88 Grennans. Related surnames: GREENMAN (799) GREENING (779) GRENON (335) GREENHAM (335) GRINHAM (173) GREENAN (145) GROHMAN (115) GRUMMAN (85) GROHMANN (80) GERNON (69).

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Here are the 88 most-recently added or edited Grennan members, cousins, and ancestors. Click here to search all 88.

1904 - 1977 Ogdensburg, St. Lawrence, New York, United States / managed by Matthew Moquin / last edited 26 Apr 2024
1846 Queen's County, Ireland - 19 Jul 1919 / managed by Marc Gregory Whitaker / last edited 20 Mar 2024
abt 1818 Queen's County, Ireland / managed by Gerald Newnham / last edited 20 Mar 2024
Grennan-97 29 Apr 1849 Bantry, County Wexford, Ireland - 22 Feb 1922 / managed by Karen Schmitz / last edited 27 Feb 2024
Jan 1873 Glen Cove, Nassau, New York, United States - 17 Jun 1946 / managed by Karen Schmitz / last edited 21 Feb 2024
23 Jun 1944 The Bronx, New York City, New York, United States - 02 Mar 2006 / managed by David Pierce / last edited 20 Jan 2024
Grennan-17 abt 1916 Detroit, Wayne County, Michigan - 14 Jan 1961 / managed by Louie Johnson / last edited 10 Nov 2023
1866 New York, United States - 1945 / last edited 13 Oct 2023
abt 1902 New York, United States - abt May 1957 / last edited 5 Oct 2023
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Siobhan Grennan / last edited 9 Aug 2023 / Active member1
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by John Grennan / last edited 28 Apr 2023
abt 1899 County Mayo, Ireland / last edited 23 Apr 2023
1892 County Mayo, Ireland / last edited 23 Apr 2023
abt 1890 County Mayo, Ireland / last edited 23 Apr 2023
1888 County Mayo, Ireland / last edited 23 Apr 2023
abt 1855 County Mayo, Ireland / last edited 23 Apr 2023
01 Oct 1895 County Roscommon, Ireland - 22 Feb 1919 / last edited 23 Apr 2023
03 Oct 1838 Ireland - 29 Oct 1925 / last edited 11 Dec 2022
abt 1825 Ireland / managed by Laurie O'Neill / last edited 21 Nov 2022
abt 1847 Ballandry, Westmeath, Ireland - 04 Jan 1909 / managed by Laurie O'Neill / last edited 21 Nov 2022
10 Jul 1919 Ivesdale, Champaign, Illinois, United States - 17 Jun 1973 / managed by Jo-Anne Johnson / last edited 16 Nov 2022
1890 - 1931 Massachusetts, United States / managed by Jennifer Lapham / last edited 6 Sep 2022
26 Dec 1918 Sterling, Whiteside, Illinois, United States - 30 Sep 1984 / managed by Cheryl Kotecki / last edited 27 Jun 2022
27 Apr 1880 Ireland - 16 Feb 1925 / managed by Bob Gerrish / last edited 12 Jun 2022
19 Mar 1933 Bradford, McKean, Pennsylvania, United States - 09 Apr 2019 / managed by Linda Grennan / last edited 8 Jun 2022
abt 28 Feb 1827 Hammonds Plains, Halifax, Nova Scotia, Canada - 01 Mar 1905 / managed by S Guinan / last edited 31 May 2022
Offaly, Ireland - aft 1795 / managed by S Guinan / last edited 31 May 2022
abt 1795 County Offaly, Ireland - abt 1871 / managed by S Guinan / last edited 31 May 2022
Grennan-24 11 Apr 1913 Chicago, Cook, Illinois, United States - 10 Jan 1989 / managed by Louie Johnson / last edited 29 May 2022
1833 County Offaly, Ireland / last edited 13 Feb 2022
abt 1850 Toronto, Peel, Canada West - aft 28 Oct 1942 / managed by Jason Everett / last edited 7 Dec 2021
30 May 1915 Harmon, Lee, Illinois, United States - 16 Jan 1997 / managed by K Frazier / last edited 12 Nov 2021
07 Mar 1883 Logan, Illinois, United States - 13 Mar 1923 / last edited 14 Aug 2021
abt 1818 Ireland / managed by PB Côté / last edited 27 Jun 2021
14 Aug 1906 Brookline, Norfolk County, Massachusetts, USA - 02 Oct 1999 / managed by Alicia Hunt / last edited 9 May 2021
abt 1845 Rathnagussane, Kilmovee, County Mayo, Ireland - 23 Feb 1885 / managed by John Durkin / last edited 11 Sep 2020
- 1982 / last edited 26 Aug 2020
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Rory Grennan / last edited 2 Aug 2020
07 Jan 1941 Detroit, Wayne, Michigan, USA - 06 May 2017 / managed by Randy Hersom / last edited 26 Aug 2019
16 Nov 1920 - 24 May 1959 / managed by Randy Hersom / last edited 8 Apr 2019
1880s - 1930s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Louie Johnson / last edited 27 Mar 2019
1920s - 1950s Privacy Level: Private (Red) managed by Louie Johnson / last edited 27 Mar 2019
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Cheryl Grennan / last edited 21 Jan 2019
1833 / managed by Jim Fraser / last edited 18 Nov 2018
1857 - 1941 Sequim Washington / managed by Jim Fraser / last edited 18 Nov 2018
1838 Ballymore, County Down, Ireland - 16 Aug 1918 / managed by Kevin Sands / last edited 13 Nov 2018
1950s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Patricia Grennan / last edited 7 Oct 2018 / Active member4
Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by John Grennan / last edited 4 Sep 2018
19 Dec 1893 Sequim Washington - 1964 / managed by Jim Fraser / last edited 27 Jul 2018
Privacy Level: Private (Red) managed by Admin WikiTree / last edited 6 Feb 2018
26 Oct 1779 St Audeon RC Church, Dublin, Ireland / managed by Michael GA Dixon / last edited 11 Jan 2018
/ managed by Louie Johnson / last edited 15 Aug 2017
17 Apr 1827 At Sea / last edited 1 Aug 2017
Grennan-26 21 Nov 1882 Sioux City, Iowa / managed by Louie Johnson / last edited 15 May 2017
1909 Chicago, Cook County, Illinois / managed by Louie Johnson / last edited 15 May 2017
12 Mar 1900 Elgin, Kane County, Illinois - 25 Dec 1941 / managed by Louie Johnson / last edited 2 May 2017
Grennan-33 1886 Dundee, Illinois - 1927 / managed by Louie Johnson / last edited 22 Sep 2016
29 Sep 1823 Ireland - 18 Aug 1869 / last edited 11 Jul 2016
abt 1820 Ireland - aft 1881 / last edited 11 Jul 2016
abt 1805 Ratoath, Meath, Ireland / managed by Michael GA Dixon / last edited 27 May 2016
1920s - 2000s Privacy Level: Private with Public Biography and Family Tree (Yellow) managed by Jim Fraser / last edited 4 Dec 2015
abt Feb 1856 NY - abt 1910 / last edited 15 Apr 2015
1855 Rahan, County Offaly, Ireland - 1935 / last edited 3 Apr 2015
abt 1900 Nova Scotia, Canada - 20 Oct 1971 / managed by Ken Horne / last edited 16 Feb 2015
03 Apr 1920 Chicago, Cook County, Illinois / managed by Louie Johnson / last edited 10 Aug 2014
Grennan-31 22 Aug 1889 Hampshire, Illinois / managed by Louie Johnson / last edited 10 Aug 2014
Ireland / last edited 3 Jun 2014
14 Dec 1911 Cook County, Illinois - abt 28 Jun 1997 / managed by Louie Johnson / last edited 26 May 2014
10 Aug 1912 - 20 May 1996 Santa Cruz, Arizona / managed by Louie Johnson / last edited 25 May 2014
Grennan-19 23 Feb 1859 Ingersoll, Ontario, Canada - 30 Apr 1909 / managed by Louie Johnson / last edited 22 May 2014
21 Jul 1891 Nokomis, Illinois - 29 Jul 1891 / managed by Louie Johnson / last edited 21 May 2014
25 Jun 1893 Nokomis, Illinois - 03 Sep 1893 / managed by Louie Johnson / last edited 21 May 2014
11 May 1907 Chicago, Cook County, Illinois - 03 Jun 1933 / managed by Louie Johnson / last edited 21 May 2014
1890s - 1980s Privacy Level: Private with Public Biography (Orange) managed by James Spencer / last edited 24 Jul 2013
abt May 1831 NB / last edited 15 Feb 2012
abt 1826 Ireland / last edited 15 Feb 2012
abt 1818 Ireland - 05 Jul 1891 / last edited 15 Feb 2012
abt 1799 Ireland / last edited 5 Feb 2012
Tree Tops Top Grennan contributors last month: #1 Matthew Moquin. Help
Patrick GrennanEvelyn HaassErma JohnsonErnest GrennanPercy GrennanKenneth GrennanPhilip Grennan



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