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

While many Irish names are familiar, their past incarnations are often shrouded in mystery, reflecting the ancient Gaelic heritage of their bearers. The original Gaelic form of the name O'Leerys is Ó Laoghaire, which was originally derived from Laoghaire, one of the most well-known personal names in ancient Ireland. 1

Early Origins of the O'Leerys family

The surname O'Leerys was first found in County Cork (Irish: Corcaigh) the ancient Kingdom of Deis Muin (Desmond), located on the southwest coast of Ireland in the province of Munster, where they held a family seat from ancient times. The sept claim descent through the Heber line of Irish kings and in turn, through the O'Connell pedigree. 2

The family was ancient landholders as the Civil Survey of 1654 lists over thirty-four of the hundred and three were O'Leary. 3

Early History of the O'Leerys family

This web page shows only a small excerpt of our O'Leerys research. Another 86 words (6 lines of text) covering the years 1172, 1729, 1756, 1795, 1802, 1818, 1831, 1842, 1845, 1863 and 1889 are included under the topic Early O'Leerys History in all our PDF Extended History products and printed products wherever possible.

O'Leerys Spelling Variations

During the Middle Ages, exact spellings for people's name did not exist. It was up to the literate scribe that was recording a person's name to decide how to spell his name. Names, therefore, often had many spelling variations. The variations of the name O'Leerys include: Leary, O'Leary, O'Leery and others.

Early Notables of the O'Leerys family

Notable amongst the family name at this time was Arthur O'Leary (1729-1802), Irish priest and politician, was born in 1729 at Acres, a townland in the parish of Fanlobbus, near Dumnanway, Co. Cork, his parents being of the peasant class. Having acquired some knowledge of classical literature, he went to a monastery; of Capuchin friars at St. Malo in Brittany. There he entered the Capuchin order, and was ordained priest. In the course of the war between England and France which commenced in 1756 prisoners of war made by the French were confined at St. Malo; many of them were Irishmen...
Another 182 words (13 lines of text) are included under the topic Early O'Leerys Notables in all our PDF Extended History products and printed products wherever possible.

Migration of the O'Leerys family

A great wave of Irish migration occurred during the 19th century as a direct result of English colonial rule and tight-fisted absentee landlords. Many of these Irish immigrants boarded passenger ships bound for North America. Those who migrated early enough were given land in either British North America or the United States; those who came in the late 19th century were typically employed in industrial centers as laborers. At whatever age they undertook the dangerous passage to North America, those Irish immigrants were essential to the speedy development of the two infant nations to which they arrived, whether they broke and settled land, helped build canals, bridges, and railroads, or produced products for consumer consumption. An examination of immigration and passenger lists has uncovered a large number of immigrants bearing the name O'Leerys or one of its variants: Daniel, Denis, George, Jeremiah, John, Michael, Patrick, Thomas and William Leary, who all arrived in Philadelphia between 1840 and 1860; other Learys arrived in the ports of Boston, New York, San Francisco, Quebec..



The O'Leerys Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: Laidir isé lear Righ
Motto Translation: Strong is the King of the sea.


  1. MacLysaght, Edward, Supplement to Irish Families. Baltimore: Genealogical Book Company, 1964. Print.
  2. O'Hart, John, Irish Pedigrees 5th Edition in 2 Volumes. Baltimore: Genealogical Publishing Company, 1976. Print. (ISBN 0-8063-0737-4)
  3. MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)


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