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An excerpt from www.HouseOfNames.com archives copyright © 2000 - 2015

Where did the Irish McMannus family come from? What is the Irish McMannus family crest and coat of arms? When did the McMannus family first arrive in the United States? Where did the various branches of the family go? What is the McMannus family history?

There are many Irish surnames being used today in forms that are quite different than their original, ancient forms. McMannus originally appeared in Gaelic as Mac Maghnuis, which means son of Manus. The personal name Manus, imported into Ireland by the Norse, is ultimately derived from the Latin forename Magnus.


People who were accounted for by scribes and church officials often had their name recorded many different ways because pronunciation was the only guide those scribes and church officials had to go by. This resulted in the problem of one person's name being recorded under several different variations, creating the illusion of more than one person. Among the many spelling variations of the surname McMannus that are preserved in archival documents are MacManus, MacManners, McManus, Manus and others.

First found in County Roscommon (Irish: Ros Comáin) located in central Ireland in the province of Connacht, where they held a family seat from ancient times.


This web page shows only a small excerpt of our McMannus research. Another 404 words (29 lines of text) covering the years 1172 and 1181 are included under the topic Early McMannus History in all our PDF Extended History products.


Another 23 words (2 lines of text) are included under the topic Early McMannus Notables in all our PDF Extended History products.


A great mass of Ireland's native population left the island in the 19th century, seeking relief from various forms of social, religious, and economic discrimination. This Irish exodus was primarily to North America. If the migrants survived the long ocean journey, many unfortunately would find more discrimination in the colonies of British North America and the fledgling United States of America. These newly arrived Irish were, however, wanted as a cheap source of labor for the many large agricultural and industrial projects that were essential to the development of what would become two of the wealthiest nations in the western world. Early immigration and passenger lists indicate many people bearing the McMannus name:

McMannus Settlers in United States in the 19th Century

  • John McMannus, aged 27, arrived in Mobile, Ala in 1846
  • Michael McMannus, who landed in Allegany (Allegheny) County, Pennsylvania in 1849
  • Andrew, Hugh, Patrick, Terrence McMannus all arrived in Philadelphia between 1840 and 1860

McMannus Settlers in Australia in the 19th Century

  • Emily McMannus arrived in Holdfast Bay, Australia aboard the ship "Canton" in 1838
  • Elizabeth McMannus, aged 21, a servant, arrived in South Australia in 1855 aboard the ship "John Banks"

McMannus Settlers in New Zealand in the 19th Century

  • Miles McMannus, aged 28, a labourer, arrived in Auckland, New Zealand aboard the ship "Resolute" in 1865


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  1. Chadwick, Nora Kershaw and J.X.W.P Corcoran. The Celts. London: Penguin, 1970. Print. (ISBN 0140212116).
  2. Zieber, Eugene. Heraldry in America. Philadelphia: Genealogical Publishing Co. Print.
  3. Woodham-Smith, Cecil. The Great Hunger Ireland 1845-1849. New York: Old Town Books, 1962. Print. (ISBN 0-88029-385-3).
  4. Rasmussen, Louis J. . San Francisco Ship Passenger Lists 4 Volumes Colma, California 1965 Reprint. Baltimore: Genealogical Publishing, 1978. Print.
  5. Burke, Sir Bernard. General Armory Of England, Scotland, Ireland and Wales. Ramsbury: Heraldry Today. Print.
  6. Sullivan, Sir Edward. The Book of Kells 3rd Edition. New York: Crescent Books, 1986. Print. (ISBN 0-517-61987-3).
  7. Filby, P. William and Mary K Meyer. Passenger and Immigration Lists Index in Four Volumes. Detroit: Gale Research, 1985. Print. (ISBN 0-8103-1795-8).
  8. Magnusson, Magnus. Chambers Biographical Dictionary 5th edition. Edinburgh: W & R Chambers, 1990. Print.
  9. Bowman, George Ernest. The Mayflower Reader A Selection of Articales from The Mayflower Descendent. Baltimore: Genealogical Publishing. Print.
  10. Grehan, Ida. Dictionary of Irish Family Names. Boulder: Roberts Rinehart, 1997. Print. (ISBN 1-57098-137-X).
  11. ...

The McMannus Family Crest was acquired from the Houseofnames.com archives. The McMannus Family Crest was drawn according to heraldic standards based on published blazons. We generally include the oldest published family crest once associated with each surname.

This page was last modified on 3 November 2010 at 11:06.

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