Show ContentsO'Dunlevy History, Family Crest & Coats of Arms

The Irish surname O'Dunlevy originally appeared in Gaelic as Mac Duinnshleibh, derived from the words "dun," meaning "fortress," or perhaps "donn," which means "brown," and "sliabh," which means "mountain."

Early Origins of the O'Dunlevy family

The surname O'Dunlevy was first found in Ulidia, in northern Ireland, where they were said to have descended from the Princes of Ulidia, who were in turn descended from the Heremon line of Irish Kings; the modern name for Ulidia, is Ulster. The "Four Masters" list that in 1199, a Rory O'Dunsleve joined the English (Norman soldiers) at Meath and plundered the monastery of Saint Peter and Paul in Armagh. In the 12th century during the Anglo/Norman invasion of Ireland, the Dunleavys migrated to Tir Connell now known as Donegal and became hereditary physicians to the distinguished O'Donnells.

Early History of the O'Dunlevy family

This web page shows only a small excerpt of our O'Dunlevy research. Another 74 words (5 lines of text) covering the years 1644, 1694, 1728, 1746 and 1761 are included under the topic Early O'Dunlevy History in all our PDF Extended History products and printed products wherever possible.

O'Dunlevy Spelling Variations

Within the archives researched, many different spelling variations of the surname O'Dunlevy were found. These included One reason for the many variations is that scribes and church officials often spelled an individual's name as it sounded. This imprecise method often led to many versions. Dunleavy, Dunlevie, Dunlevy, Dunlivie, McDunleavy, Donleavy and many more.

Early Notables of the O'Dunlevy family

Notable amongst the family name at this time was Father Christopher Dunlevy, a Franciscan monk, who was martyred in 1644. Reverend Andrew Donlevy (1694- c.1761), was an Irish ecclesiastic, born about 1694, and received his early education in or...
Another 38 words (3 lines of text) are included under the topic Early O'Dunlevy Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the O'Dunlevy family

The 19th century saw a great wave of Irish families leaving Ireland for the distant shores of North America and Australia. These families often left their homeland hungry, penniless, and destitute due to the policies of England. Those Irish immigrants that survived the long sea passage initially settled on the eastern seaboard of the continent. Some, however, moved north to a then infant Canada as United Empire Loyalists after ironically serving with the English in the American War of Independence. Others that remained in America later joined the westward migration in search of land. The greatest influx of Irish immigrants, though, came to North America during the Great Potato Famine of the late 1840s. Thousands left Ireland at this time for North America, and those who arrived were immediately put to work building railroads, coal mines, bridges, and canals. In fact, the foundations of today's powerful nations of the United States and Canada were to a larger degree built by the Irish. Archival documents indicate that members of the O'Dunlevy family relocated to North American shores quite early: Gregory Donlevy, who was naturalized in New York, NY in 1798; Walter Donlevy, who arrived in Philadelphia in 1813; Francis William Donlevy, who was naturalized in South Carolina in 1816.



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