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An excerpt from archives copyright © 2000 - 2016

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.


The surname McMannus was 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.

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.


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 and printed products wherever possible.


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


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 Ameri ca. 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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    Other References

    1. Bullock, L.G. Historical Map of Ireland. Edinburgh: Bartholomew and Son, 1969. Print.
    2. MacLysaght, Edward. Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1991. Print. (ISBN 0-7165-2364-7).
    3. Weis, Frederick Lewis, Walter Lee Sheppard and David Faris. Ancestral Roots of Sixty Colonists Who Came to New England Between 1623 and 1650 7th Edition. Baltimore: Genealogical Publishing, 1992. Print. (ISBN 0806313676).
    4. Donovan, George Francis. The Pre-Revolutionary Irish in Massachusetts 1620-1775. Menasha, WI: Geroge Banta Publsihing Co., 1932. Print.
    5. McDonnell, Frances. Emigrants from Ireland to America 1735-1743 A Transcription of the report of the Irish House of Commons into Enforced emigration to America. Baltimore: Genealogical Publishing, 1992. Print. (ISBN 0-8063-1331-5).
    6. Skordas, Guest. Ed. The Early Settlers of Maryland an Index to Names or Immigrants Complied from Records of Land Patents 1633-1680 in the Hall of Records Annapolis, Maryland. Baltimore: Genealogical Publishing Co., 1992. Print.
    7. Magnusson, Magnus. Chambers Biographical Dictionary 5th edition. Edinburgh: W & R Chambers, 1990. Print.
    8. Harris, Ruth-Ann and B. Emer O'Keefe. The Search for Missing Friends Irish Immigrant Advertisements Placed in the Boston Pilot Volume II 1851-1853. Boston, MA: New England Historic Genealogical Society, 1991. Print.
    9. Colletta, John P. They Came In Ships. Salt Lake City: Ancestry, 1993. Print.
    10. Read, Charles Anderson. The Cabinet of Irish Literature Selections from the Works of the Chief Poets, Orators and Prose Writers of Ireland 4 Volumes. London: Blackie and Son, 1884. Print.
    11. ...

    The McMannus Family Crest was acquired from the 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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