Fennessey History, Family Crest & Coats of Arms
The Fennessey surname is an Anglicized form of the Gaelic Ó Fionnghusa, "descendant of Fionnghus," a personal name composed of the elements "fionn," meaning "fair," or "white," and "gus," meaning "vigor," or "force."
Early Origins of the Fennessey family
The surname Fennessey was first found in Tipperary (Irish: Thiobraid Árann), established in the 13th century in South-central Ireland, in the province of Munster, where they held a family seat as chiefs seated at Cashel of the Kings in that county. Irish history, after the Norman Conquest of England, was strongly influenced by the invasion of Strongbow in 1172, almost equal to the enormous Irish cultural impact on England Scotland, Wales and the whole of Europe before the Norman Conquest from the 1st to 7th centuries. Many Irish clanns and sept names were intermixed and family groupings became almost indistinguishable. This family name was found later in the county of Waterford.
Important Dates for the Fennessey family
This web page shows only a small excerpt of our Fennessey research. Another 136 words (10 lines of text) covering the years 1747, 1874, and 1886 are included under the topic Early Fennessey History in all our PDF Extended History products and printed products wherever possible.
Fennessey Spelling Variations
Spelling variations of this family name include: Fannessy, Fennessey, Finessy, Finessey, Fenessy, O'Fennesy and many more.
Early Notables of the Fennessey family (pre 1700)
More information is included under the topic Early Fennessey Notables in all our PDF Extended History products and printed products wherever possible.
Migration of the Fennessey family
Some of the first settlers of this family name or some of its variants were: James Fennese, who settled in Boston in 1748; James Fennesey, who settled in Philadelphia in 1834; Thomas Fennesy, who arrived in Memphis, TN in 1851.
Contemporary Notables of the name Fennessey (post 1700)
- Joseph Fennessey, American Democrat politician, Delegate to Democratic National Convention from Illinois, 1972 
- Dr. Neil M Fennessey, Associate Professor of Civil and Environmental Engineering at the University of Massachusetts-Dartmouth
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