Show ContentsLandergan History, Family Crest & Coats of Arms

The many Irish surnames in use today have long rich histories behind them. The name Landergan originally appeared in Gaelic as Ó Longargain.

Early Origins of the Landergan family

The surname Landergan was first found in County Tipperary (Irish: Thiobraid Árann), established in the 13th century in South-central Ireland, in the province of Munster, where they held a family seat from ancient times.

One of the first records of the family was "at the synod of Kells, 1152, [when] Cardinal Paparo gave a pallium to Donat O'Lonergan of Cashel, and since then his successors have ruled the ecclesiastical province of Munster. " 1

Early History of the Landergan family

This web page shows only a small excerpt of our Landergan research. Another 64 words (5 lines of text) covering the year 1172 is included under the topic Early Landergan History in all our PDF Extended History products and printed products wherever possible.

Landergan Spelling Variations

Lacking standardized spellings, scribes and church officials recorded people's name according to how they sounded. This practice often led to the misleading result of one person's name being recorded under several different spellings. Numerous spelling variations of the surname Landergan are preserved in the archival documents of the period. The various spellings of the name that were found include Lonergan, Landergan, Landrigan, Ladrigan, Lonagan, Landragan, Longargan and many more.

Early Notables of the Landergan family

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

Migration of the Landergan family

Many Irish families boarded ships bound for North America in the middle of 19th century to escape the conditions of poverty and racial discrimination at that time. Although these immigrants often arrived in a destitute state, they went on to make important contributions to the emerging nations of the United States and Canada. An inquiry into many immigration and passenger lists has revealed many early immigrants to North America bearing the Landergan family name: Edward Landragan settled in Philadelphia in 1858 along with John; Thomas and Andrew Landragaon arrived in Philadelphia in 1876; Edmund and Michael Lonergan arrived in Philadelphia in 1856..



  1. Herbermann, Charles George, ed. The Catholic Encyclopedia New York: Appleton, 1913. Print


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