Show ContentsMacAdam History, Family Crest & Coats of Arms

The old Irish name MacAdam and its variants are tied to the Anglo-Saxon "Adam," a given name which is itself derived from the Latin name "Adamus," meaning "earth."

Early Origins of the MacAdam family

The surname MacAdam was first found in many counties, and in all different corners of Ireland.

Adamnan or Adomnan (625?-704), "is supposed to have been born, about 625, in the south-west of the part of Ulster now known as Donegal, with the principal septs of which his parents were allied. Few details which can be accepted as authentic have been preserved in relation to Adamnan's career. In 679 he was elected abbot of Iona, being the ninth in succession to his eminent kinsman Columba, by whom the monastic institution on that island had been founded. Through his personal application, in 686, to Aldfrid, king of Northumbria, Adamnan effected the liberation of some of the Irish who had been carried off by pirates and retained in captivity there. About this period he became an advocate for adopting the Roman regulations as to the tonsure, and in relation to the time for the celebration of Easter. The Latin life of St. Columba-'Vita Columbæ'-who died in 597, is supposed to have been compiled by Adamnan in the interval between his visits to Ireland in 692 and 697. He is stated to have taken part in conventions and synods in Ireland, enactments ascribed to which were styled 'Adamnan's Rule' and 'Canones Adomnani.' The latter, consisting of eight sections, were published by Martene. Adamnan died at Iona in 704, on 23 Sept., on which day he was commemorated as a saint in old Irish and Scottish calendars. " 1

Although most of the early records of Irish names have been lost, placenames such as Ballymacadam near Tralee, Castemacadam, Cadamstwon in County Kildare, and Adamstown in six different counties, are a testament to how widespread this name was in early times. The earliest recorded instance of the name seems to be of James, son of Thomas McAdam, who was among those a list that Lord Fermoy submitted to the Earl of Essex on promise of pardon as provision to his entering into rebellion, dated 21 August 1599.

"This well known English name has been used synonymously with Aidy and Eadie in Co. Down." 2

Early History of the MacAdam family

This web page shows only a small excerpt of our MacAdam research. Another 135 words (10 lines of text) covering the years 1641, 1791, 1801, 1808, 1814, 1815, 1818, 1832, 1842, 1861, 1875 and 1895 are included under the topic Early MacAdam History in all our PDF Extended History products and printed products wherever possible.

MacAdam Spelling Variations

Spelling variations of this family name include: Adam, Adams, McAdam, MacAdam, MacCaw, MacCoddan and many more.

Early Notables of the MacAdam family

Notable amongst the family up to this time was

  • James MacAdam (1801-1861), noted geologist and his brother Robert...
  • Macadam (1808-1895), Gaelic scholar and founder of the Ulster Journal of Archeology...


United States MacAdam migration to the United States +

Some of the first settlers of this family name were:

MacAdam Settlers in United States in the 19th Century
  • William MacAdam, aged 30, arrived in New York in 1892 aboard the ship "Circassia" from Londonderry, Ireland 3
MacAdam Settlers in United States in the 20th Century
  • Isabel Bennett MacAdam, aged 26, arrived in New York in 1919 aboard the ship "Adriatic" from Southampton, England 3
  • Francis Macadam, aged 27, originally from Buenos Aires, Argentine, arrived in New York City, New York in 1919 aboard the ship "Royal George" from Liverpool, England 3
  • Sydney E. Mac Adam, arrived in New York in 1919 aboard the ship "Baltic" from Liverpool, England 3

Contemporary Notables of the name MacAdam (post 1700) +

  • Dr. David Lewis MacAdam (1910-1998), American physicist and color scientist who identified the MacAdam ellipse
  • J. E. L. MacAdam, American Republican politician, Presidential Elector for Ohio, 1956 4
  • David L. MacAdam, American politician, Candidate for U.S. Representative from New York, 1964, 1974 4
  • David H. MacAdam, American Democratic Party politician, Postmaster at Honolulu, Hawaii, 1917-26 4
  • Dr. John Macadam (1827-1865), Scottish-born, Australian chemist, medical teacher and politician, eponym of the genus Macadamia and Macadam
  • Reginald Alan MacAdam (b. 1952), Canadian retired professional NHL ice hockey player who played from 1973 to 1985
  • Sir Ivison Stevenson Macadam KCVO, CBE, FRSE (1894-1974), Scottish first Director-General of the Royal Institute of International Affairs (Chatham House), founding President of the National Union of Students
  • Kevin MacAdam (b. 1967), Canadian former politician and current political advisor


The MacAdam Motto +

The motto was originally a war cry or slogan. Mottoes first began to be shown with arms in the 14th and 15th centuries, but were not in general use until the 17th century. Thus the oldest coats of arms generally do not include a motto. Mottoes seldom form part of the grant of arms: Under most heraldic authorities, a motto is an optional component of the coat of arms, and can be added to or changed at will; many families have chosen not to display a motto.

Motto: In cruce salus
Motto Translation: In the cross is salvation.


  1. Smith, George (ed), Dictionary of National Biography. London: Smith, Elder & Co., 1885-1900. Print
  2. MacLysaght, Edward, Supplement to Irish Families. Baltimore: Genealogical Book Company, 1964. Print.
  3. Ellis Island Search retrieved 15th November 2022. Retrieved from https://heritage.statueofliberty.org/passenger-result
  4. The Political Graveyard: Alphabetical Name Index. (Retrieved 2015, November 12) . Retrieved from http://politicalgraveyard.com/alpha/index.html


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