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O'hennessy History, Family Crest & Coats of Arms

Today's Irish surnames are underpinned by a multitude of rich histories. The name O'hennessy originally appeared in Gaelic as O hAonghusa, which means "descendant of Angus."

Early Origins of the O'hennessy family

The surname O'hennessy was first found in County Offaly (Irish: Uíbh Fháilí) originally the Kingdom of Uí Failghe, located in central Ireland in the Province of Leinster, where they held a family seat from very ancient times.

Early History of the O'hennessy family

This web page shows only a small excerpt of our O'hennessy research.
Another 81 words (6 lines of text) are included under the topic Early O'hennessy History in all our PDF Extended History products and printed products wherever possible.

O'hennessy Spelling Variations

Before widespread literacy came to Ireland, a name was often recorded under several different variations during the life of its bearer. Accordingly, numerous spelling variations were revealed in the search for the origin of the name O'hennessy family name. Variations found include Hennessey, Henasey, Henasay, Henchy, Henchey, Henchie, Hinchy, Hinchey, Hinchie, Henesey, Henessy, Henesy, Hennesey and many more.

Early Notables of the O'hennessy family (pre 1700)

More information is included under the topic Early O'hennessy Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the O'hennessy family to the New World and Oceana

Thousands of Irish families left for North American shores in the 19th century. These people were searching for a life unencumbered with poverty, hunger, and racial discrimination. Many arrived to eventually find such conditions, but many others simply did not arrive: victims of the diseased, overcrowded ships in which they traveled to the New World. Those who lived to see North American shores were instrumental in the development of the growing nations of Canada and the United States. A thorough examination of passenger and immigration lists has disclosed evidence of many early immigrants of the name O'hennessy: William Hennesey who settled in Philadelphia, Pennsylvania in 1874; Edmund, Edward, James, Michael, Patrick and Robert Hennessey settled in Philadelphia between 1850 and 1870.

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