O'Sheeran History, Family Crest & Coats of Arms

The surname O'Sheeran is derived from Mac Searthuin, which means son of Searthun. The personal name Searthun is equivalent to Geoffrey.

Early Origins of the O'Sheeran family

The surname O'Sheeran was first found in County Donegal (Irish: Dún na nGall), northwest Ireland in the province of Ulster, sometimes referred to as County Tyrconnel, where they held a family seat, some say before the Anglo Norman invasion of Ireland by Strongbow in 1172. However, others claim that it is an offshoot of the Prendergast Clan in County Mayo, where they adopted the Gaelic name of O'Sirin, and established themselves on the Donegal/ Fermanagh border about the year 1250.

Important Dates for the O'Sheeran family

This web page shows only a small excerpt of our O'Sheeran research. Another 92 words (7 lines of text) covering the years 1659 and 1673 are included under the topic Early O'Sheeran History in all our PDF Extended History products and printed products wherever possible.

O'Sheeran Spelling Variations

It was found during an investigation of the origins of the name O'Sheeran that church officials and medieval scribes often spelled the name as it sounded. This practice lead to a single person's being documented under many spelling variations. The name O'Sheeran has existed in the various shapes: Shearing, Sheering, Sheeran, Sharron, Sherren, Sherran, Shirran, Sheeran, Sheerin, O'Shearing, O'Sheering, O'Sheeran, O'Sharron, O'Sherren, O'Sherran, O'Shirran, O'Sheeran, O'Shearing and many more.

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

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

Migration of the O'Sheeran family

In the 1840s, Ireland experienced a mass exodus to North America due to the Great Potato Famine. These families wanted to escape from hunger and disease that was ravaging their homeland. With the promise of work, freedom and land overseas, the Irish looked upon British North America and the United States as a means of hope and prosperity. Those that survived the journey were able to achieve this through much hard work and perseverance. Early immigration and passenger lists revealed many bearing the name O'Sheeran: Daniel, Edward, Hugh, Patrick and Thomas Sheerin who landed in Philadelphia, Pennsylvania between 1804 and 1864; Edward and John Sheering landed in Philadelphia in 1867.

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