Before Irish names were translated into English, O'Kelaghan had a Gaelic form of O Ceallachain, possibly from "ceallach", which means "strife". The family is descended from Ceallachan (Callaghan), the 10th century King of Munster
from whom their surname is derived, and as such, the name O'Kelaghan is a patronymic
Early Origins of the O'Kelaghan family
The surname O'Kelaghan was first found in Munster
. The earliest mention of the name O'Kelaghan placed them in the barony of Kinlea, in County Cork
, yet the family lost most of their original lands in the barony of Kinelea during the Anglo- Norman Conquest
. They relocated to an area near Mallow, in the north of the county, and remained there until forced off their lands once again during the Cromwellian Invasion
of the 17th century. The head family migrated to the east of County Clare
and flourished, giving their name to the village of Callaghan's Mills. The resumption of the often-discarded prefix "O" has been widespread during the late twentieth century, but in the early twentieth century, Callaghans greatly outnumbered O'Callaghans, but such is no longer the case. The O'Callaghans are one of the few Irish families
to still have a chief, certified by the Genealogical Office. CITATION[CLOSE]
MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)
Early History of the O'Kelaghan family
This web page shows only a small excerpt of our O'Kelaghan research.Another 403 words (29 lines of text) covering the years 1172, 1640, 1738, 1807, 1797, 1883, 1605, 1654, 1839 and 1909 are included under the topic Early O'Kelaghan History in all our PDF Extended History products and printed products wherever possible.
O'Kelaghan Spelling Variations
Within archives, many different spelling variations
exist for the surname O'Kelaghan. Ancient scribes and church officials recorded names as they were pronounced, often resulting in the name of the single person being recorded under several different spellings. Different spellings that were found include Callaghan, Callahan, O'Callaghan, O'Callahan, Calahan, Cellaghan, Kalahan, Kallaghan, Kallahan, O'Kallaghan, Kellaghan, Kelleghan, Kellahan, Kelahan, Ceilahan, Ceilaghan, Callachan, Calachan, Callagan, Calagan, Kelagan, Callighan and many more.
Early Notables of the O'Kelaghan family (pre 1700)
Another 35 words (2 lines of text) are included under the topic Early O'Kelaghan Notables in all our PDF Extended History products and printed products wherever possible.
Migration of the O'Kelaghan family to the New World and Oceana
North America accepted thousands of Irish immigrants during the 19th century as their homeland suffered under foreign imperialistic rule. Although settlers from the early portion of the century came to North America by choice in search of land, by far the largest influx of Irish immigrants came to North America during the Great Potato Famine
of the late 1840s. Many of these Irish families
left the country destitute and in some cases suffering from disease. However, those who survived the long ocean voyage were especially vital to the development of industry in the United States and what would become known as Canada. Research of immigration and passenger lists has shown many early immigrants bearing the name O'Kelaghan: James Callaghan who settled in America in 1768; Gerhard Callaghan settled in 1764; James Callaghan settled in Pennsylvania in 1772; John Callaghan settled in Boston Massachusetts in 1764.