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

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

All Irish surnames have a unique and often romantic meaning. The name Cosgrove originally appeared in Gaelic as Mac Coscraigh or O Coscraigh, from the word "coscrach," which means victorious.


The spelling of names in Ireland during the Middle Ages was rarely consistent. This inconsistency was due to the scribes and church officials' attempts to record orally defined names in writing. The common practice of recording names as they sounded resulted in spelling variations such as Cosgrove, Cosgrave, O'Cosgrove, O'Cosgrave, McCosgrove, McCosgrave and many more.

First found in Leinster, where they held a family seat from ancient times.


This web page shows only a small excerpt of our Cosgrove research. Another 491 words(35 lines of text) covering the years 1000, 1172, 1620, and 1641 are included under the topic Early Cosgrove History in all our PDF Extended History products.


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


Many destitute Irish families in the 18th and 19th centuries decided to leave their homeland, which had in many ways been scarred by English colonial rule. One of the most frequent destinations for these families was North America where it was possible for an Irish family to own their own parcel of land. Many of the early settlers did find land awaiting them in British North America, or even later in America, but for the majority of immigrants that arrived as a result of the Great Potato Famine of the late 1840s the ownership of land was often a long way off. These Irish people were initially put to work on such industrial projects as the building of bridges, canals, and railroads, or they worked at manufacturing positions within factories. Whenever they arrived, the Irish made enormous contributions to the infant nations of Canada and the United States. Some of the earliest immigrants to bearer the name of Cosgrove were found through extensive research of immigration and passenger lists:

Cosgrove Settlers in United States in the 18th Century

  • William Cosgrove, who arrived in Philadelphia, Pennsylvania in 1745
  • Michael Cosgrove, who arrived in Philadelphia, Pennsylvania in 1746

Cosgrove Settlers in United States in the 19th Century

  • Barnard Cosgrove, aged 21, arrived in New York in 1812
  • Bartholemew Cosgrove, who landed in Allegany (Allegheny) County, Pennsylvania in 1816
  • Richard Cosgrove, who arrived in Mobile County, Ala in 1840
  • Teresa Cosgrove, who landed in New York, NY in 1845
  • John, Michael, William Cosgrove arrived in Philadelphia in 1850

Cosgrove Settlers in Canada in the 18th Century

  • Mr. Dennis Cosgrove U.E who settled in Belle Vue, Beaver Harbour, Charlotte County, New Brunswick c. 1783

Cosgrove Settlers in Canada in the 19th Century

  • Catherine Cosgrove, who arrived in Nova Scotia in 1813
  • Margaret Cosgrove, aged 20, arrived in St. John aboard the ship "Protector" in 1834

Cosgrove Settlers in Australia in the 19th Century

  • Thomas Cosgrove, English convict from Middlesex, who was transported aboard the "Almorah" on April 1817, settling in New South Wales, Australia
  • Alicia Cosgrove arrived in Adelaide, Australia aboard the ship "Surrey" in 1838
  • Mary Cosgrove, aged 21, a servant, arrived in South Australia in 1854 aboard the ship "Taymouth Castle"
  • Mary Cosgrove, aged 30, a domestic servant, arrived in South Australia in 1855 aboard the ship "Grand Trianon"
  • John Cosgrove, English convict from Lancaster, who was transported aboard the "Adelaide" on April 16, 1855, settling in Western Australia

Cosgrove Settlers in New Zealand in the 19th Century

  • Mary Cosgrove arrived in Wellington, New Zealand aboard the ship "Viscount Sandon" in 1860
  • James Cosgrove arrived in Auckland, New Zealand aboard the ship "Excelsior" in 1870
  • Eliza Cosgrove, aged 34, a servant, arrived in Auckland, New Zealand aboard the ship "Oxford" in 1874


  • Daniel Cosgrove (b. 1970), American two-time Daytime Emmy Award nominated actor, best known for his work on The Guiding Light
  • John Cosgrove (b. 1968), American politician, congressman from Missouri
  • John Cosgrove (b. 1954), Virginia state legislator
  • Kevin Cosgrove (1955-2001), American victim of the 9/11 attack; was Claims Vice President of Aon Corporation
  • Harriet 'Hattie' Siliman Cosgrove (1887-1970), American archaeologist
  • Samuel Goodlove Cosgrove (1847-1909), American politician, 6th Governor of Washington (1909)
  • William Cosgrove (1888-1936), Irish recipient of the Victoria Cross
  • Luke Cosgrove (1862-1949), Irish actor
  • Paddy Cosgrove, Former Chairman of Mayo County Council, Ireland
  • Hon Sir Robert Cosgrove (1894-1969), Australian politician, twice Premier of Tasmania



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  1. Grehan, Ida. Dictionary of Irish Family Names. Boulder: Roberts Rinehart, 1997. Print. (ISBN 1-57098-137-X).
  2. Best, Hugh. Debrett's Texas Peerage. New York: Coward-McCann, 1983. Print. (ISBN 069811244X).
  3. Tepper, Michael Ed & Elizabeth P. Bentley Transcriber. Passenger Arrivals at the Port of Philadelphia 1800-1819. Baltimore: Genealogical Publishing Co., 1986. Print.
  4. Johnson, Daniel F. Irish Emigration to New England Through the Port of Saint John, New Brunswick Canada 1841-1849. Baltimore, Maryland: Clearfield, 1996. Print.
  5. Egle, William Henry. Pennsylvania Genealogies Scotch-Irish and German. Harrisburg: L.S. Hart, 1886. Print.
  6. 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).
  7. Zieber, Eugene. Heraldry in America. Philadelphia: Genealogical Publishing Co. Print.
  8. Bowman, George Ernest. The Mayflower Reader A Selection of Articales from The Mayflower Descendent. Baltimore: Genealogical Publishing. Print.
  9. MacLysaght, Edward. Irish Families Their Names, Arms and Origins 4th Edition. Dublin: Irish Academic, 1991. Print. (ISBN 0-7165-2364-7).
  10. 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.
  11. ...

The Cosgrove Family Crest was acquired from the Houseofnames.com archives. The Cosgrove 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 18 February 2015 at 13:15.

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