Show ContentsMcAdoo Surname History

The Gaelic name used by the McAdoo family in ancient Ireland was Mac Conduibh. The first part of the name comes from the word con, which is the genitive form of cu, which means hound while the second part of the name is derived from the Gaelic word dubh, which means black.

Early Origins of the McAdoo family

The surname McAdoo was first found in County Mayo (Irish: Maigh Eo) located on the West coast of the Republic of Ireland in the province of Connacht, where they held a family seat.

Early History of the McAdoo family

This web page shows only a small excerpt of our McAdoo research. Another 46 words (3 lines of text) are included under the topic Early McAdoo History in all our PDF Extended History products and printed products wherever possible.

McAdoo Spelling Variations

Names written in official documents were generally spelt as they sounded, leading to the problem of one name being recorded under several different variations, creating the illusion in records of more than one person. Among the many spelling variations of the surname McAdoo that are preserved in documents of the family history are MacCunniff, Cunniff, Cuniffe, Cunniffe, MacConiffe, MacConniff, Coneffe, Coniffe, Conniff, MacEniffe, MacKiniff, Kinniiff, MacNuff, MacNeeve, MacNiff, MacAniff, Caddo, Caddow, Quinniff, MacEndoo, MacAdoo and many more.

Early Notables of the McAdoo family

Prominent amongst the family at this time was

  • the McAdoo family of Mayo

McAdoo Ranking

In the United States, the name McAdoo is the 6,797th most popular surname with an estimated 4,974 people with that name. 1


United States McAdoo migration to the United States +

The English-ruled Ireland of the late 18th and 19th centuries featured a rapidly increasing population and an agricultural-based economy. This combination proved to be disastrous in the 1840s after a couple of failed potato harvests. Thousands died of disease and starvation, and thousands more left the country, often bound for North America. Those that survived the journey to North America were put to work building the bridges, canals, roadways, and railways needed for the development of an industrial society. Those Irish, although often despised by those already established in North American cities and towns, played an instrumental role in making Canada and the United States the powerful and wealthy nations that they are today. An examination of early immigration and passenger lists has shown many immigrants bearing the name McAdoo:

McAdoo Settlers in United States in the 19th Century
  • Mary McAdoo, who arrived in New York in 1805 at the age of 16
  • John McAdoo, aged 50, who landed in New York, NY in 1805 2
  • Robert McAdoo, aged 14, who arrived in New York, NY in 1805 2
  • Mary McAdoo, aged 42, who landed in New York, NY in 1805 2
  • James McAdoo, who landed in New York in 1821
  • ... (More are available in all our PDF Extended History products and printed products wherever possible.)

Contemporary Notables of the name McAdoo (post 1700) +

  • Dudley "Tullie" McAdoo (1884-1987), American baseball first baseman in the Negro Leagues
  • Michael McAdoo (b. 1990), American NFL football linebacker
  • Ben McAdoo, American quarterback coach for the Green Bay Packers
  • William McAdoo (1853-1930), American Democratic Party politician who represented New Jersey's 7th congressional district, New York City Police Commissioner (1904 to 1905)
  • James Michael Ray McAdoo (b. 1993), American college basketball player at the University of North Carolina
  • Robert Allen "Bob" McAdoo (b. 1951), American professional NBA basketball player
  • William Gibbs McAdoo (1863-1941), American lawyer, Secretary of the Treasury in 1913
  • Walter V. McAdoo Jr., American Republican politician, Delegate to Republican National Convention from Illinois, 1960 3
  • W. A. McAdoo, American Democratic Party politician, Alternate Delegate to Democratic National Convention from Pennsylvania, 1912 3
  • Matt McAdoo, American Libertarian politician, Candidate for U.S. Representative from Texas 31st District, 2006 3
  • ... (Another 4 notables are available in all our PDF Extended History products and printed products wherever possible.)


  1. "What are the 5,000 Most Common Last Names in the U.S.?". NameCensus.com, https://namecensus.com/last-names/
  2. Filby, P. William, Meyer, Mary K., Passenger and immigration lists index : a guide to published arrival records of about 500,000 passengers who came to the United States and Canada in the seventeenth, eighteenth, and nineteenth centuries. 1982-1985 Cumulated Supplements in Four Volumes Detroit, Mich. : Gale Research Co., 1985, Print (ISBN 0-8103-1795-8)
  3. The Political Graveyard: Alphabetical Name Index. (Retrieved 2016, February 10) . Retrieved from http://politicalgraveyard.com/alpha/index.html


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