Show ContentsIssac History, Family Crest & Coats of Arms

The ancestors of the Issac family come from the ancient Scottish kingdom of Dalriada. The family name comes from the personal name Isaac. The Gaelic forms of the name are Mac Isaac or Mac Iosaig, both of which mean son of Isaac. [1]

Early Origins of the Issac family

The surname Issac was first found in Inverness, where one of the first records of the family was in 1476 when "the lands of Ardere in the barony of Clastray were resigned by Mariot, daughter of Molmoria M'Kesek." [1]

Spelling variations for the family are quite varied: Mackessack, Mackissack, Mackissock, Mackissek, Makesaig (1592), Makkessake (1591), McKisack (1684) and many more.

In 1496, Donald Makessaig was recorded at Kilmun and he is probably the Donald McEsayg recorded in 1511. "John M'Intheir was convicted in 1623 for letting M'Keissik's 'bairnis the for hunger' in Breadalbane (BRT., p. 379 -there was probably a famine). Marion MacKissock was resident in the parish of Boyne, 1684, Elspet M'Kissick in Relliclone, parish of Madertie, 1658 (Dunkeld)." [1]

Early History of the Issac family

This web page shows only a small excerpt of our Issac research. Another 156 words (11 lines of text) covering the years 1685 and 1871 are included under the topic Early Issac History in all our PDF Extended History products and printed products wherever possible.

Issac Spelling Variations

Historical recordings of the name Issac include many spelling variations. They are the result of repeated translations of the name from Gaelic to English and inconsistencies in spelling rules. They include MacIsaac, MacIsaack, Kissock and others.

Early Notables of the Issac family (pre 1700)

More information is included under the topic Early Issac Notables in all our PDF Extended History products and printed products wherever possible.

Issac Ranking

In the United States, the name Issac is the 14,870th most popular surname with an estimated 2,487 people with that name. [2]

United States Issac migration to the United States +

Dalriadan families proliferated in North America. Their descendants still populate many communities in the eastern parts of both the United States and Canada. Some settled in Canada as United Empire Loyalists, in the wake of the American War of Independence. Families on both sides of the border have recovered much of their heritage in the 20th century through Clan societies and highland games. Analysis of immigration records indicates that some of the first North American immigrants bore the name Issac or a variant listed above:

Issac Settlers in United States in the 17th Century
  • Rebecca Issac, who landed in Maryland in 1670 [3]

Canada Issac migration to Canada +

Some of the first settlers of this family name were:

Issac Settlers in Canada in the 19th Century
  • George Issac, who arrived in Victoria, British Columbia in 1862

Contemporary Notables of the name Issac (post 1700) +

  • Henry Issac Rowntree (1837-1883), English founder of the Rowntree Chocolate Company in York, England in 1862
  • Abraham Issac Quintanilla Jr. (b. 1939), Mexican American singer-songwriter and record producer

  1. Black, George F., The Surnames of Scotland Their Origin, Meaning and History. New York: New York Public Library, 1946. Print. (ISBN 0-87104-172-3)
  2. "What are the 5,000 Most Common Last Names in the U.S.?".,
  3. 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) on Facebook