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Grennan Family History & Genealogy

354 biographies and photos with the Grennan last name. Discover the family history, nationality, origin and common names of Grennan family members.
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Grennan Last Name History & Origin

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History

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Name Origin

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Spellings & Pronunciations

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Nationality & Ethnicity

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Famous People named Grennan

Are there famous people from the Grennan family? Share their story.

Early Grennans

These are the earliest records we have of the Grennan family.

Catherine Grennan Feb 10, 1877 - May 1969 Waterbury, Connecticut
Catherine Grennan of Waterbury, New Haven County, CT was born on February 10, 1877, and died at age 92 years old in May 1969.
followers
Geraldine Grennan Jul 29, 1878 - Jan 1973 Northbrook, Illinois
Geraldine Grennan of Northbrook, Cook County, Illinois was born on July 29, 1878, and died at age 94 years old in January 1973.
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Margaret Grennan Mar 23, 1878 - May 1973 Lowell, Massachusetts
Margaret Grennan of Lowell, Middlesex County, MA was born on March 23, 1878, and died at age 95 years old in May 1973.
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James Grennan May 12, 1879 - Feb 1964 Michigan
James Grennan of Michigan was born on May 12, 1879, and died at age 84 years old in February 1964.
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Elizabeth M Grennan Jul 8, 1879 - Mar 15, 1968
Elizabeth M Grennan was born on July 8, 1879, and died at age 88 years old on March 15, 1968.
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Elizabeth Grennan Oct 9, 1880 - Oct 1972 Ann Arbor, Michigan
Elizabeth Grennan of Ann Arbor, Washtenaw County, Michigan was born on October 9, 1880, and died at age 92 years old in October 1972.
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William Grennan Aug 3, 1880 - Aug 1973 Sacramento, California
William Grennan of Sacramento, Sacramento County, California was born on August 3, 1880, and died at age 93 years old in August 1973.
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John Grennan Jan 28, 1881 - Oct 1963 Illinois
John Grennan of Illinois was born on January 28, 1881, and died at age 82 years old in October 1963.
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John Grennan Aug 11, 1881 - Nov 1964 Michigan
John Grennan of Michigan was born on August 11, 1881, and died at age 83 years old in November 1964.
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Michael Grennan May 10, 1883 - Apr 1973 Tuxedo Park, New York
Michael Grennan of Tuxedo Park, Orange County, NY was born on May 10, 1883, and died at age 89 years old in April 1973.
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John Grennan Apr 1, 1884 - Aug 1968 Lodi, California
John Grennan of Lodi, San Joaquin County, California was born on April 1, 1884, and died at age 84 years old in August 1968.
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Ellen Grennan Jul 15, 1884 - Dec 1974 Streator, Illinois
Ellen Grennan of Streator, La Salle County, Illinois was born on July 15, 1884, and died at age 90 years old in December 1974.
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Grennan Family Photos

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Grennan Family Tree

Discover the most common names, oldest records and life expectancy of people with the last name Grennan.

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Updated Grennan Biographies

William D Grennan Dec 26, 1918 - Sep 1984 Amboy, Illinois
William D Grennan of Amboy, Lee County, Illinois was born on December 26, 1918, and died at age 65 years old in September 1984.
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Marguerite K Grennan Aug 18, 1906 - Sep 1970 Schenectady, New York
Marguerite K Grennan of Schenectady, Schenectady County, NY was born on August 18, 1906, and died at age 64 years old in September 1970.
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Stanley v Grennan Feb 14, 1915 - Jul 1964 Illinois
Stanley V Grennan of Illinois was born on February 14, 1915, and died at age 49 years old in July 1964.
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Fenton J Grennan Aug 2, 1916 - Nov 8, 2003 Seattle, Washington
Fenton J Grennan of Seattle, King County, WA was born on August 2, 1916, and died at age 87 years old on November 8, 2003.
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John A Grennan Jul 21, 1926 - Mar 2, 1993 Northport, New York
John A Grennan of Northport, Suffolk County, NY was born on July 21, 1926, and died at age 66 years old on March 2, 1993.
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Joseph M Grennan Sep 29, 1917 - Apr 1983 Oregon, Illinois
Joseph M Grennan of Oregon, Ogle County, Illinois was born on September 29, 1917, and died at age 65 years old in April 1983.
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Joseph J Grennan Jan 12, 1924 - Feb 1976 Providence, Rhode Island
Joseph J Grennan of Providence, Providence County, RI was born on January 12, 1924, and died at age 52 years old in February 1976.
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Morie E Grennan born c. 1915 Kane, Illinois, United States
Morie E Grennan of Kane County, Illinois United States was born circa 1915. Family, friend, or fan, this family history biography is for you to remember Morie E Grennan.
1 follower
Whitney J Grennan born c. 1918 Livingston, Illinois, United States
Whitney J Grennan of Livingston County, Illinois United States was born circa 1918. Family, friend, or fan, this family history biography is for you to remember Whitney J Grennan.
1 follower
Morie E Grennan Dec 17, 1915 - Jan 17, 1995 West Palm Beach, Florida
Morie E Grennan of West Palm Beach, Palm Beach County, FL was born on December 17, 1915, and died at age 79 years old on January 17, 1995.
1 follower
Mary Patricia Grennan Mar 25, 1918 - Jul 18, 2011 North Kingstown, Rhode Island
Mary Patricia Grennan of North Kingstown, Washington County, RI was born on March 25, 1918, and died at age 93 years old on July 18, 2011. Mary Grennan was buried at Rhode Island Veteran Memorial Cemetery Section B-6 Row 2 Site 56 301 South County Trail, in Exeter.
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Whitney James Grennan Apr 25, 1918 - Mar 30, 1975
Whitney James Grennan was born on April 25, 1918, and died at age 56 years old on March 30, 1975. Whitney Grennan was buried at Los Angeles National Cemetery Section 310 Row C Site 19 950 South Sepulveda Boulevard, in Los Angeles, Ca. Family, friend, or fan, this family history biography is for you to remember Whitney James Grennan.
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Joseph P Grennan Oct 28, 1918 - Nov 14, 1996 Pompano Beach, Florida
Joseph P Grennan of Pompano Beach, Broward County, FL was born on October 28, 1918, and died at age 78 years old on November 14, 1996. Joseph Grennan was buried at Bay Pines National Cemetery Section 61 Row 5 Site 11 P.o. Box 477, in Bay Pines.
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Ruth Emma Grennan Oct 1, 1916 - Jul 7, 2004 Clermont, Florida
Ruth Emma Grennan of Clermont, Lake County, FL was born on October 1, 1916, and died at age 87 years old on July 7, 2004. Ruth Grennan was buried at Calverton National Cemetery Section H/2 Site C/37 210 Princeton Boulevard - Rt 25, in Calverton, Ny.
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Thomas F Grennan Dec 2, 1914 - Jun 13, 2004 Clermont, Florida
Thomas F Grennan of Clermont, Lake County, FL was born on December 2, 1914, and died at age 89 years old on June 13, 2004. Thomas Grennan was buried at Calverton National Cemetery Section H/2 Site C/37 210 Princeton Boulevard - Rt 25, in Calverton, Ny.
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Ann Marie Grennan Jun 11, 1963 - Jun 14, 1963
Ann Marie Grennan was born on June 11, 1963, and died on June 14, 1963. Ann Grennan was buried at Long Island National Cemetery Section 2K Site 5234 2040 Wellwood Avenue, in Farmingdale, Ny. Family, friend, or fan, this family history biography is for you to remember Ann Marie Grennan.
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John Grennan Jan 28, 1881 - Oct 1963 Illinois
John Grennan of Illinois was born on January 28, 1881, and died at age 82 years old in October 1963.
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Frank Grennan May 31, 1895 - Feb 8, 1979
Frank Grennan was born on May 31, 1895, and died at age 83 years old on February 8, 1979. Family, friend, or fan, this family history biography is for you to remember Frank Grennan.
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Katie M Grennan Jul 28, 1983 - Jun 5, 2004
Katie M Grennan was born on July 28, 1983, and died at age 20 years old on June 5, 2004. Family, friend, or fan, this family history biography is for you to remember Katie M Grennan.
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Henry A Grennan Aug 5, 1908 - May 20, 1988 Washington, District Of Columbia
Henry A Grennan of Washington, District of Columbia County, DC was born on August 5, 1908, and died at age 79 years old on May 20, 1988.
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Popular Grennan Biographies

Morie E Grennan born c. 1915 Kane, Illinois, United States
Morie E Grennan of Kane County, Illinois United States was born circa 1915. Family, friend, or fan, this family history biography is for you to remember Morie E Grennan.
1 follower
Whitney J Grennan born c. 1918 Livingston, Illinois, United States
Whitney J Grennan of Livingston County, Illinois United States was born circa 1918. Family, friend, or fan, this family history biography is for you to remember Whitney J Grennan.
1 follower
Morie E Grennan Dec 17, 1915 - Jan 17, 1995 West Palm Beach, Florida
Morie E Grennan of West Palm Beach, Palm Beach County, FL was born on December 17, 1915, and died at age 79 years old on January 17, 1995.
1 follower
Ann Marie Grennan Jun 11, 1963 - Jun 14, 1963
Ann Marie Grennan was born on June 11, 1963, and died on June 14, 1963. Ann Grennan was buried at Long Island National Cemetery Section 2K Site 5234 2040 Wellwood Avenue, in Farmingdale, Ny. Family, friend, or fan, this family history biography is for you to remember Ann Marie Grennan.
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Sadie Grennan May 27, 1903 - Sep 1982 Laconia, New Hampshire
Sadie Grennan of Laconia, Belknap County, NH was born on May 27, 1903, and died at age 79 years old in September 1982.
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Margaret Grennan Mar 23, 1878 - May 1973 Lowell, Massachusetts
Margaret Grennan of Lowell, Middlesex County, MA was born on March 23, 1878, and died at age 95 years old in May 1973.
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James Grennan Dec 19, 1896 - Apr 1967 Laconia, New Hampshire
James Grennan of Laconia, Belknap County, NH was born on December 19, 1896, and died at age 70 years old in April 1967.
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Dorothy H Grennan May 18, 1925 - Oct 16, 1995 Brooksville, Florida
Dorothy H Grennan of Brooksville, Hernando County, FL was born on May 18, 1925, and died at age 70 years old on October 16, 1995.
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John Grennan Jul 18, 1908 - Feb 1975 Cocoa Beach, Florida
John Grennan of Cocoa Beach, Brevard County, FL was born on July 18, 1908, and died at age 66 years old in February 1975.
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Katherine C Grennan Jan 10, 1902 - Dec 10, 1988
Katherine C Grennan was born on January 10, 1902, and died at age 86 years old on December 10, 1988.
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Thomas Grennan Apr 10, 1901 - Jan 1969 Boston, Massachusetts
Thomas Grennan of Boston, Suffolk County, MA was born on April 10, 1901, and died at age 67 years old in January 1969.
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Geraldine K Grennan May 29, 1921 - Dec 3, 2000 Malden, Massachusetts
Geraldine K Grennan of Malden, Middlesex County, MA was born on May 29, 1921, and died at age 79 years old on December 3, 2000.
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Margaret Grennan Apr 3, 1908 - Apr 16, 2000
Margaret Grennan was born on April 3, 1908, and died at age 92 years old on April 16, 2000.
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Mary E Grennan Jul 23, 1908 - Jun 21, 2000 Stowe, Vermont
Mary E Grennan of Stowe, Lamoille County, VT was born on July 23, 1908, and died at age 91 years old on June 21, 2000.
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Anne L Grennan Aug 10, 1902 - Jun 19, 1990
Anne L Grennan was born on August 10, 1902, and died at age 87 years old on June 19, 1990. Family, friend, or fan, this family history biography is for you to remember Anne L Grennan.
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Mollie F Grennan Dec 5, 1898 - Dec 9, 1997 Quincy, Massachusetts
Mollie F Grennan of Quincy, Norfolk County, MA was born on December 5, 1898, and died at age 99 years old on December 9, 1997.
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Mary I Grennan Apr 3, 1916 - Sep 30, 2007 Rockledge, Florida
Mary I Grennan of Rockledge, Brevard County, FL was born on April 3, 1916, and died at age 91 years old on September 30, 2007.
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Elizabeth M Grennan Jul 8, 1879 - Mar 15, 1968
Elizabeth M Grennan was born on July 8, 1879, and died at age 88 years old on March 15, 1968.
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Thomas Grennan May 10, 1925 - Jun 1979
Thomas Grennan was born on May 10, 1925, and died at age 54 years old in June 1979. Family, friend, or fan, this family history biography is for you to remember Thomas Grennan.
followers
Mary Patricia Grennan Mar 25, 1918 - Jul 18, 2011 North Kingstown, Rhode Island
Mary Patricia Grennan of North Kingstown, Washington County, RI was born on March 25, 1918, and died at age 93 years old on July 18, 2011. Mary Grennan was buried at Rhode Island Veteran Memorial Cemetery Section B-6 Row 2 Site 56 301 South County Trail, in Exeter.
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Grennan Death Records & Life Expectancy

The average age of a Grennan family member is 75.0 years old according to our database of 352 people with the last name Grennan that have a birth and death date listed.

Life Expectancy

75.0 years

Oldest Grennans

These are the longest-lived members of the Grennan family on AncientFaces.

Mary E Grennan Aug 27, 1897 - Feb 15, 1998 Chesapeake, Virginia
Mary E Grennan of Chesapeake, Chesapeake City County, VA was born on August 27, 1897, and died at age 100 years old on February 15, 1998.
followers
100 years
Josephine E Grennan Sep 28, 1910 - Oct 9, 2010 Washington, District Of Columbia
Josephine E Grennan of Washington, District of Columbia County, DC was born on September 28, 1910, and died at age 100 years old on October 9, 2010.
followers
100 years
Mollie F Grennan Dec 5, 1898 - Dec 9, 1997 Quincy, Massachusetts
Mollie F Grennan of Quincy, Norfolk County, MA was born on December 5, 1898, and died at age 99 years old on December 9, 1997.
followers
99 years
John Grennan Oct 21, 1887 - Dec 1986 Burlington, Kansas
John Grennan of Burlington, Coffey County, Kansas was born on October 21, 1887, and died at age 99 years old in December 1986.
followers
99 years
Mary Grennan Jan 10, 1892 - Dec 15, 1989 Providence, Rhode Island
Mary Grennan of Providence, Providence County, RI was born on January 10, 1892, and died at age 97 years old on December 15, 1989.
followers
97 years
Grace Grennan Jul 10, 1909 - Mar 6, 2006 Rockville Centre, New York
Grace Grennan of Rockville Centre, Nassau County, NY was born on July 10, 1909, and died at age 96 years old on March 6, 2006.
followers
96 years
Joseph J Grennan Aug 27, 1892 - Apr 20, 1989 Hartford, Connecticut
Joseph J Grennan of Hartford, Hartford County, CT was born on August 27, 1892, and died at age 96 years old on April 20, 1989.
followers
96 years
Gertrude Grennan Jan 12, 1887 - Apr 1983 Madison, Tennessee
Gertrude Grennan of Madison, Davidson County, Tennessee was born on January 12, 1887, and died at age 96 years old in April 1983.
followers
96 years
Margaret Grennan Mar 23, 1878 - May 1973 Lowell, Massachusetts
Margaret Grennan of Lowell, Middlesex County, MA was born on March 23, 1878, and died at age 95 years old in May 1973.
followers
95 years
Geraldine Grennan Jul 29, 1878 - Jan 1973 Northbrook, Illinois
Geraldine Grennan of Northbrook, Cook County, Illinois was born on July 29, 1878, and died at age 94 years old in January 1973.
followers
94 years
Mabel L Grennan Jul 27, 1900 - Oct 2, 1995 Windsor, Connecticut
Mabel L Grennan of Windsor, Hartford County, CT was born on July 27, 1900, and died at age 95 years old on October 2, 1995.
followers
95 years
Anna M Grennan May 4, 1915 - Apr 28, 2010 Hoosick Falls, New York
Anna M Grennan of Hoosick Falls, Rensselaer County, NY was born on May 4, 1915, and died at age 94 years old on April 28, 2010.
followers
94 years
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Other Grennan Records

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