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GANNON Family History

The Irish surname CANNON has three origins in Ireland:

Ó Cannanáin of Tirconnell, is one of the most ancient, if not the most ancient, of hereditary surnames recorded in the Annals of the Four Masters (AD942/3), in the person of Ruadri Ua Cannanáin.  This surname is no doubt the source of many Donegal CANNONS.

Ó Canáin, a distinct surname from the above, belonged to the Uí Maine and also became anglicised as CANNON, and would, therefore, appear to account for the majority of the Connacht bearers.  A possible conjectural root is 'cano' - a wolf-cub (Woulfe).

The English surname CANNON from Old French ‘canoine (canon)’, an ecclesiastical office,  is also present in Ireland due to immigration either from Anglo-Norman settlers, post Elizabethan English settlers and Huguenot refugees.

In the 1847-64 Valuation of Ireland by Sir Richard Griffith  most CANNON households were to be found in Donegal (201), Leitrim (79), Mayo (77) and Galway (75).

In the 1890 Birth Index most CANNON births were registered in Donegal, Leitrim and Mayo. 

Both records indicate that the majority of Irish CANNONS would be from the two above native Irish origins.

As for the arms here illustrated, they appear in Burke's General Armory, 1884, under the variant CANON, with no reference to any Irish connection in that text.  The only other arms, quite different,  with an Irish connection mentioned in that work is a funeral entail in Dublin of a family with similar arms to those of Scottish CANNONS.


1847-64 Valuation of Ireland, Sir Richard Griffith.

1890 Birth Index, from Special Report on Irish Surnames, Robert E. Matheson, Registrar General, 1901

Sloinnte Gaedheal is Gall, P. Woulfe, Dublin 1923

Irish Families series, Dr Edward MacLysaght, Irish Academic Press, Dublin, 1982/5

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    Bonjour, je recherche depuis un certain temps sans succès un ami Aiden GANNON rencontré à Galway en Irlande en 1991. La vie a fait que nous nous sommes perdus de vue, j'aimerais tellement avoir de ses nouvelles. Je suis Française. Merci pour votre aide.
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    You have the history of the wrong family.
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    Kevin Gannon

    Kevin Gannon. Age 44. Born 30.12.1974 Co Meath Moynaulty kells. Living England Colchester Essex.
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    kevin gannon still working on the famous side of things .
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    Hello fellow Gannons! My name is Grant Gannon, and I am an American Gannon descended from Gannon’s in Ireland. My family moved to America four generations ago, and has since lived in Ohio, Virginia, California, and Illinois. I’m currently 23 and would love to learn more about the origins of our family! I figured this would be a good place to start.
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    hey, im kayla gannon and i wanted to learn about my fanily. can anyone help??
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