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

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

The original Gaelic form of the Irish name Manahan was written as O Mainchin, which is derived from the word manach, which means monk.


Names during the Middle Ages were often recorded under several different spelling variations during the life of their bearers. Literacy was rare at that time and so how a person's name was recorded was decided by the individual scribe. Variations of the name Manahan include Mannix, Managan, Managhan, Manahan, Manihan, O'Managhan, O'Manihan, Mangan and many more.

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.


This web page shows only a small excerpt of our Manahan research. Another 206 words (15 lines of text) covering the year 1172 is included under the topic Early Manahan History in all our PDF Extended History products.


More information is included under the topic Early Manahan Notables in all our PDF Extended History products.


The 19th century saw a great wave of Irish migrating out of their homeland in a great measure due to the oppressive imperial policies of the English government and landowners. Many of these Irish families sailed to North America aboard overcrowded passenger ships. By far, the largest influx of Irish immigrants to North America occurred with Great Potato Famine during the late 1840s. These particular immigrants were instrumental in creation of the United States and Canada as major industrial nations because the many essential elements such as the roadways, canals, bridges, and railways required an enormous quantity of cheap labor, which these poor immigrants provided. Later generations of Irish in these countries also went on to make valuable contributions in such fields as the arts, commerce, politics, and education. Extensive research into immigration and passenger lists has revealed many early immigrants bearing the name Manahan:

Manahan Settlers in United States in the 17th Century

  • William Manahan, who landed in Virginia in 1654

Manahan Settlers in United States in the 19th Century

  • James Manahan, aged 24, landed in New York in 1812
  • Patrick Manahan, aged 37, landed in New York in 1812
  • Daniel and Patrick Manahan arrived in Philadelphia, PA between 1842 and 1859
  • Anthony Manahan, aged 20, arrived in New York, NY in 1849
  • A Manahan, who landed in San Francisco, California in 1851

Manahan Settlers in Canada in the 19th Century

  • Antony Manahan settled in Quebec in 1849


  • Dr. Ronald E. Manahan (1977-1986), American academic, 5th President of Grace College and Theological Seminary, Winona Lake, Indiana
  • Robert L. Manahan (1956-2000), American voice actor
  • Donal Thomas Manahan (b. 1953), Irish-born, American marine scientist, known for Antarctic and deep oceanic research on marine invertebrates and their larvae in extreme environments, eponym of Manahan Peak, Antarctica
  • James Manahan (1866-1932), American politician, U.S. Representative from Minnesota (1913-1915)
  • William Lawrence "Larry" Manahan, American politician, former member of the Ohio House of Representatives (1979-1992)
  • James Edward Manahan (b. 1897), American Democrat politician, Member of Vermont State House of Representatives, 1939-44; U.S. Collector of Customs, 1945-51; Mayor of St. Albans, Vermont, 1946
  • James Manahan, American Republican politician, Alternate Delegate to Republican National Convention from Minnesota, 1972
  • James Manahan (1866-1932), American Republican politician, U.S. Representative from Minnesota at-large, 1913-15
  • G. Hal Manahan (b. 1886), American Republican politician, Gas and oil dealer; Chair of Elkhart County Republican Party, 1942-44
  • Anna Maria Manahan (1924-2009), Irish stage, film and television actress



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  1. Passenger Lists of Vessels Arriving at Galveston Texas 1896-1951. National Archives Washington DC. Print.
  2. Sullivan, Sir Edward. The Book of Kells 3rd Edition. New York: Crescent Books, 1986. Print. (ISBN 0-517-61987-3).
  3. Zieber, Eugene. Heraldry in America. Philadelphia: Genealogical Publishing Co. Print.
  4. Tepper, Michael Ed & Elizabeth P. Bentley Transcriber. Passenger Arrivals at the Port of Philadelphia 1800-1819. Baltimore: Genealogical Publishing Co., 1986. Print.
  5. Matthews, John. Matthews' American Armoury and Blue Book. London: John Matthews, 1911. Print.
  6. Best, Hugh. Debrett's Texas Peerage. New York: Coward-McCann, 1983. Print. (ISBN 069811244X).
  7. The Norman People and Their Existing Descendants in the British Dominions and the United States Of America. Baltimore: Genealogical Publishing, 1975. Print. (ISBN 0-8063-0636-X).
  8. Hanks, Patricia and Flavia Hodges. A Dictionary of Surnames. Oxford: Oxford University Press, 1988. Print. (ISBN 0-19-211592-8).
  9. Hickey, D.J. and J.E. Doherty. A New Dictionary of Irish History form 1800 2nd Edition. Dublin: Gil & MacMillian, 2003. Print.
  10. Woulfe, Rev. Patrick. Irish Names and Surnames Collected and Edited with Explanatory and Historical Notes. Kansas City: Genealogical Foundation, 1992. Print. (ISBN 0-940134-403).
  11. ...

The Manahan Family Crest was acquired from the Houseofnames.com archives. The Manahan 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 8 October 2015 at 13:32.

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