Show ContentsGueinniss History, Family Crest & Coats of Arms

While many of Irish names are quite familiar to most, their original Gaelic forms are often forgotten and mysterious. The original Gaelic form of the name Gueinniss is Mag Aonghusa or Mag Aonghuis, which mean "son of Angus." 1

Early Origins of the Gueinniss family

The surname Gueinniss was first found in County Down (Irish:An Dún) part of the Province of Ulster, in Northern Ireland, formerly known as county St Mirren, where they held a family seat from ancient times.

Early History of the Gueinniss family

This web page shows only a small excerpt of our Gueinniss research. Another 140 words (10 lines of text) covering the years 1539, 1543, 1584, 1640, 1703, 1759, 1797, 1798 and 1868 are included under the topic Early Gueinniss History in all our PDF Extended History products and printed products wherever possible.

Gueinniss Spelling Variations

In the Middle Ages, a name was often recorded under several different spelling variations during the life of its bearer. Literacy was rare at that time and none of the languages to be found in the British Isles had achieved any great semblance of standardization. Variations of the name Gueinniss found include Genis, Guinness, Magennis, Guinnessy, McGuinness and many more.

Early Notables of the Gueinniss family

Prominent amongst the family at this time was Hugo Magennis (d. 1640) who was the Franciscan Bishop of Down and Connor; the second Viscount Iveagh, Brian Magennis who was killed in action in 1703; Richard and Richard the...
Another 38 words (3 lines of text) are included under the topic Early Gueinniss Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the Gueinniss family

Irish emigration to North America began modestly in the late 18th century. At this time, Irish families made the journey to British North America and the United States by choice and after careful consideration: they were primarily in search of a suitably large stretch of land to call their own. This pattern would change most dramatically during the Great Potato Famine of the late 1840s. For example, the years 1825-1845 saw approximately 450,000 heading to British North America and 400,000 to the United States, but in 1847, at the height of the famine, it is estimated that more than 104,000 Irish immigrants went to British North America and more than 119,000 to the United States. An examination of passenger and immigration lists has revealed many early immigrants bearing the name Gueinniss: John Guinnessy, who settled in New York in 1849; William Guinnes who settled in Barbados in 1663; Pat and Mary Guinnessy who settled in Quebec with their ten children in 1849..



  1. MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)


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