Show ContentsMooers History, Family Crest & Coats of Arms

There are several distinct sources of the Mooers surname in Ireland. Most of the name find their roots with the Anglo-Norman "Strongbow" invasion of the 12th century. Many of these became de Mora. Others derived from the Old Irish "O Mordha," from the word "mordha," meaning "stately," or "noble." 1 The English surname Mooers is derived from the personal name "More," which is itself derived from the Old French word "maur," meaning "Moor."

Early Origins of the Mooers family

The surname Mooers was first found in Munster, where the name was firmly established shortly after the Strongbow invasion of Ireland in 1172. 1

'Aimergin Ua Mordha, A.D. 1026.' O'Mordha is Anglicised O'More and More, which has now usually become Moore, The O'Mores were a powerful sept in Ireland." 2

"Donal Mór (d. 1194), son of Turlough, was the last King of North Munster. " 3 The Guinness or MacGunness family claim descent from Cionga, son of Rory Mór and had a similar coat of arms complete with a gold lion on a green shield denoting their heritage.

Moore or O'Moore were the hereditary Lords of Leix. Of this branch was Charles O'More who had a younger brother named Rory Oge who in 1587 was slain by the English.

The Moores of Rahinduffe, Queen's County are a branch of this previous family. Of note was Anthony O'Moore who joined with the O'Neills and defeated the English army in 1598. 3

Early History of the Mooers family

This web page shows only a small excerpt of our Mooers research. Another 124 words (9 lines of text) covering the years 1557, 1600, 1620, 1621, 1627, 1641, 1655, 1700, 1703, 1706, 1729, 1730, 1767, 1791, 1795, 1798, 1799 and 1822 are included under the topic Early Mooers History in all our PDF Extended History products and printed products wherever possible.

Mooers Spelling Variations

Church officials and medieval scribes often simply spelled names as they sounded. As a result, a single person's name may have been recorded a dozen different ways during his lifetime. Spelling variations for the name Mooers include: Moore, More, Moor, O'More, Moores, Mores, McMore, Moire, Moare, MacMoore, McMoir, Moir, Moors, O'Moore, O'Moire, McMoare, MacMoir, MacMoare, Mooer and many more.

Early Notables of the Mooers family

Notable amongst the family up to this time was Rory O'More (d. 1557) and his son Rory Og O'More, who were both Irish leaders in the wars against the English (Tudor) Kings; Rory O'Moore (Roger O'Moore, O'More, Sir Roger Moore) (c.1600-1655), an Irish landowner of ancient lineage, most notable for being one of the four principal organizers of the Irish Rebellion of 1641; Rory "Roger" More...
Another 66 words (5 lines of text) are included under the topic Early Mooers Notables in all our PDF Extended History products and printed products wherever possible.


United States Mooers migration to the United States +

The Irish emigration during the late 18th and 19th century contributed to the melting pot of nationalities in North America, and the building of a whole new era of industry and commerce in what was seen as a rich, new land. Ireland'sGreat Potato Famine resulted in the worst economic and social conditions in the island's history. And in response to the hunger, disease, and poverty, during this decade the total number of emigrants to leave for North America rivaled all the previous years combined. Those from this decade that arrived on North American shores were not warmly welcomed by the established population, but they were vital to the rapid development of the industry, agriculture, and infrastructure of the infant nations of the United States and what would become Canada. Research into early immigration and passenger lists has shown many people bearing the name Mooers:

Mooers Settlers in United States in the 18th Century
  • James Mooers, and his wife Isabel, who settled in New Hampshire in 1725
Mooers Settlers in United States in the 20th Century
  • Harry Mooers, aged 7, originally from Copenhagen, who arrived in New York in 1901 aboard the ship "Etruria" from Liverpool, England 4
  • Horatio Tobey Mooers, aged 25, who arrived in New York in 1919 aboard the ship "Waubesa" from Antwerp, Belgium 4
  • T. B. Mooers, aged 24, who arrived in New York in 1921 aboard the ship "Dixiano" from London, England 4

Canada Mooers migration to Canada +

Some of the first settlers of this family name were:

Mooers Settlers in Canada in the 19th Century
  • Margaret Mooers, who was recorded in the 1871 census of Ontario

Contemporary Notables of the name Mooers (post 1700) +

  • Calvin Northrup Mooers (1919-1994), American computer scientist known for his work in developing the programming language TRAC
  • General Benjamin Mooers (1758-1838), American general from the American Revolution and politician, Member of the New York legislature, eponym of Mooers, New York


The Mooers 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: Conlan-a-bu
Motto Translation: Conlan forever.


  1. MacLysaght, Edward, Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1982. Print. (ISBN 0-7165-2364-7)
  2. Moore, A.W., Manx Names. London: Elliot Stock, 62 Paternoster Row, 1906. Print
  3. O'Hart, John, Irish Pedigrees 5th Edition in 2 Volumes. Baltimore: Genealogical Publishing Company, 1976. Print. (ISBN 0-8063-0737-4)
  4. Ellis Island Search retrieved 15th November 2022. Retrieved from https://heritage.statueofliberty.org/passenger-result


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