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

The O'Hallahan surname originally appeared in Gaelic as O hAilechain or O hAileagain.

Early Origins of the O'Hallahan family

The surname O'Hallahan was first found in County Armagh (Irish: Ard Mhacha) located in the province of Ulster in present day Northern Ireland, where they held a family seat from ancient times.

Early History of the O'Hallahan family

This web page shows only a small excerpt of our O'Hallahan research. Another 74 words (5 lines of text) are included under the topic Early O'Hallahan History in all our PDF Extended History products and printed products wherever possible.

O'Hallahan Spelling Variations

The Middle Ages saw a great number of spelling variations for surnames common to the Irish landscape. One reason for these variations is the fact that surnames were not rigidly fixed by this period. The following variations for the name O'Hallahan were encountered in the archives: Halligan, Holligan, Hollegan, Hologhan, Hallihan and many more.

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

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

Migration of the O'Hallahan family

In the 19th century, thousands of Irish left their English-occupied homeland for North America. Like most new world settlers, the Irish initially settled on the eastern shores of the continent but began to move westward with the promise of owning land. The height of this Irish migration came during the Great Potato Famine of the late 1840s. With apparently nothing to lose, Irish people left on ships bound for North America and Australia. Unfortunately a great many of these passengers lost their lives - the only thing many had left - to disease, starvation, and accidents during the long and dangerous journey. Those who did safely arrive in "the land of opportunities" were often used for the hard labor of building railroads, coal mines, bridges, and canals. The Irish were critical to the quick development of the infrastructure of the United States and Canada. Passenger and immigration lists indicate that members of the O'Hallahan family came to North America quite early: Elizabeth Halligan, who settled in Boston in 1849; James and Margaret Halligan settled in New York in 1820; Catherine, Daniel, Kate, Mary, and Margaret Holihan settled in Boston in 1850. on Facebook