UPDATED: 25 July  2026

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John Gannon

John Gannon

Male


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Generation: 1

  1. 1.  John Gannon

    Family/Spouse: Catherine Slaven. [Group Sheet] [Family Chart]

    Children:
    1. 2. Clara Mary Gannon  Descendancy chart to this point was born on 17 Jul 1887 in Brockport, Monroe, New York; was christened on 31 Jul 1887 in Brockport, Monroe, New York; and died.
    2. 3. John Joseph Gannon  Descendancy chart to this point was born on 10 Dec 1888 in Brockport, Monroe, New York; was christened on 13 Jan 1889 in Brockport, Monroe, New York; and died.
    3. 4. Harold Henry Gannon  Descendancy chart to this point was born on 9 Apr 1891 in Brockport, Monroe, New York; was christened on 26 Apr 1891 in Brockport, Monroe, New York; and died.
    4. 5. James Horace Gannon  Descendancy chart to this point was born on 9 Apr 1891 in Brockport, Monroe, New York; was christened on 26 Apr 1891 in Brockport, Monroe, New York; and died.
    5. 6. Margaret Ethel Gannon  Descendancy chart to this point was born on 29 Nov 1895 in Brockport, Monroe, New York; was christened on 15 Jan 1896 in Brockport, Monroe, New York; died on 11 Dec 1963; was buried in Rochester, Monroe, New York.


Generation: 2

  1. 2.  Clara Mary Gannon Descendancy chart to this point (1.John1) was born on 17 Jul 1887 in Brockport, Monroe, New York; was christened on 31 Jul 1887 in Brockport, Monroe, New York; and died.

    Clara married James Houlihan on 16 Aug 1908 in Rochester, Monroe, New York. James (son of James Houlihan and Ellen Lynes) was born in 1887 in Canada; and died. [Group Sheet] [Family Chart]

    Children:
    1. 7. Catherine Mary Houlihan  Descendancy chart to this point was born on 22 Aug 1910 in New York; died on 29 Dec 1994; was buried in Rochester, Monroe, New York.
    2. 8. Evelyn Houlihan  Descendancy chart to this point was born about 1913 in New York; and died.
    3. 9. Leo Houlihan  Descendancy chart to this point was born about 1914 in New York; and died.

  2. 3.  John Joseph Gannon Descendancy chart to this point (1.John1) was born on 10 Dec 1888 in Brockport, Monroe, New York; was christened on 13 Jan 1889 in Brockport, Monroe, New York; and died.

  3. 4.  Harold Henry Gannon Descendancy chart to this point (1.John1) was born on 9 Apr 1891 in Brockport, Monroe, New York; was christened on 26 Apr 1891 in Brockport, Monroe, New York; and died.

    Harold married Helen C. McAlpine on 5 Oct 1916 in Rochester, Monroe, New York. Helen (daughter of Charles McAlpine and Margaret Coen) was born about 1899 in New York; and died. [Group Sheet] [Family Chart]


  4. 5.  James Horace Gannon Descendancy chart to this point (1.John1) was born on 9 Apr 1891 in Brockport, Monroe, New York; was christened on 26 Apr 1891 in Brockport, Monroe, New York; and died.

  5. 6.  Margaret Ethel Gannon Descendancy chart to this point (1.John1) was born on 29 Nov 1895 in Brockport, Monroe, New York; was christened on 15 Jan 1896 in Brockport, Monroe, New York; died on 11 Dec 1963; was buried in Rochester, Monroe, New York.

    Margaret married John Balt on 2 Aug 1919 in Rochester, Monroe, New York. John (son of John Balt and Christina Vanhof) was born in 1895 in New York; died on 19 Jan 1975; was buried in Rochester, Monroe, New York. [Group Sheet] [Family Chart]



Generation: 3

  1. 7.  Catherine Mary Houlihan Descendancy chart to this point (2.Clara2, 1.John1) was born on 22 Aug 1910 in New York; died on 29 Dec 1994; was buried in Rochester, Monroe, New York.

    Catherine married Donald Schnaus on 20 Oct 1934 in Rochester, Monroe, New York. Donald (son of Floyd Florian Schnaus and Emma Vermace) was born on 23 Oct 1909 in New York; died on 24 Nov 1995; was buried in Rochester, Monroe, New York. [Group Sheet] [Family Chart]


  2. 8.  Evelyn Houlihan Descendancy chart to this point (2.Clara2, 1.John1) was born about 1913 in New York; and died.

    Evelyn married Harvey Brown on 26 Jun 1937 in Rochester, Monroe, New York. [Group Sheet] [Family Chart]


  3. 9.  Leo Houlihan Descendancy chart to this point (2.Clara2, 1.John1) was born about 1914 in New York; and died.