Show ContentsCassin History, Family Crest & Coats of Arms

The Cassin surname comes from the Irish Gaelic Mac Caisín, or Ó Caisín.

Early Origins of the Cassin family

The surname Cassin was first found in Munster, where they held a family seat as Chiefs of the Dalcassian race. Irish history, after the Norman Conquest of England, was strongly influenced by the invasion of Strongbow in 1172. Many Irish clanns, sept names were intermixed and family groupings became almost indistinguishable.

Early History of the Cassin family

This web page shows only a small excerpt of our Cassin research. Another 124 words (9 lines of text) covering the years 1640, 1666 and 1667 are included under the topic Early Cassin History in all our PDF Extended History products and printed products wherever possible.

Cassin Spelling Variations

Spelling variations of this family name include: McCashin, McCashen, O'Cashin, O'Cashen, O'Casheon, Cashion, Cashin, Cashon, Cassin, Cassion, McCashion, Mccashney, McCashon, McKasshine, Keshin, Casheen, Casain, Kasain, McCassin and many more.

Early Notables of the Cassin family

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

Cassin Ranking

In France, the name Cassin is the 8,781st most popular surname with an estimated 500 - 1,000 people with that name. 1


United States Cassin migration to the United States +

Some of the first settlers of this family name were:

Cassin Settlers in United States in the 18th Century
  • Richard Cassin, who landed in New York in 1795 2
Cassin Settlers in United States in the 19th Century
  • Conly Cassin, who was naturalized in Charles Town [Charleston], South Carolina in 1813
  • Conly Cassin, who arrived in Charleston, South Carolina in 1813 2
  • James Cassin, who landed in Charleston, South Carolina in 1827 2
  • James Cassin, who settled in Charles Town [Charleston], South Carolina in 1827
  • Mary Cassin, who landed in Charleston, South Carolina in 1829 2
  • ... (More are available in all our PDF Extended History products and printed products wherever possible.)

Canada Cassin migration to Canada +

Some of the first settlers of this family name were:

Cassin Settlers in Canada in the 19th Century
  • Pierce Cassin, who arrived in Nova Scotia in 1819
  • John Cassin, who settled in Saint John, New Brunswick in 1842
  • Mr. John Cassin, aged who immigrated to Canada, arriving at the Grosse Isle Quarantine Station in Quebec aboard the ship "Sobraron" departing from the port of Liverpool, England but died on Grosse Isle in 1847 3

New Zealand Cassin migration to New Zealand +

Emigration to New Zealand followed in the footsteps of the European explorers, such as Captain Cook (1769-70): first came sealers, whalers, missionaries, and traders. By 1838, the British New Zealand Company had begun buying land from the Maori tribes, and selling it to settlers, and, after the Treaty of Waitangi in 1840, many British families set out on the arduous six month journey from Britain to Aotearoa to start a new life. Early immigrants include:

Cassin Settlers in New Zealand in the 19th Century
  • Mr. William Cassin, (b. 1800), aged 49, Irish settler, born in Ireland arriving as part of the 8th Detachment of the Royal New Zealand Fencibles travelling from Gravesend aboard the ship "Oriental Queen" arriving in Auckland, New Zealand on 18th September 1849 4
  • Mrs. Elizabeth Cassin née Byrnes, (b. 1817), aged 32, British settler, born in Canterbury travelling from Gravesend aboard the ship "Oriental Queen" arriving in Auckland, New Zealand on 18th September 1849 4
  • Miss Clarissa (Clara) Cassin, (b. 1837), aged 12, British settler, born in India travelling from Gravesend aboard the ship "Oriental Queen" arriving in Auckland, New Zealand on 18th September 1849 4
  • Miss Emma Cassin, (b. 1841), aged 8, British settler, born in India travelling from Gravesend aboard the ship "Oriental Queen" arriving in Auckland, New Zealand on 18th September 1849 4
  • Mr. William Henry Cassin, (b. 1845), aged 4, British settler, born in Drypool arriving as part of the 8th Detachment of the Royal New Zealand Fencibles travelling from Gravesend aboard the ship "Oriental Queen" arriving in Auckland, New Zealand on 18th September 1849 4
  • ... (More are available in all our PDF Extended History products and printed products wherever possible.)

Contemporary Notables of the name Cassin (post 1700) +

  • John Cassin (1813-1869), American ornithologist
  • Stephen Cassin (1783-1857), American United States Navy officer, awarded a gold medal for bravery by the U.S. Congress
  • Michael Cassin, American politician, Member of California State Assembly 16th District, 1857-58 5
  • John J. Cassin, American politician, Member of New York State Assembly from Rensselaer County 3rd District, 1892-94 5
  • Isaac S. Cassin, American Democratic Party politician, Delegate to Democratic National Convention from Pennsylvania, 1864 5
  • Edward Cassin, American Democratic Party politician, Candidate for U.S. Representative from New York 5th District, 1920 5
  • Barry Cassin (1924-2017), Irish television, stage and screen actor
  • Riccardo Cassin (1909-2009), Italian mountaineer, developer of mountaineering equipment and author
  • René Cassin (1887-1976), French jurist and statesman
  • Thomas Cassin Kinkaid (1888-1972), American admiral in the United States Navy during World War II, eponym of the USS Kinkaid (DD-965), a Spruance-class destroyer

Air New Zealand Flight 901
  • Mr. Gregory Mark Cassin (1942-1979), New Zealander First Officer, from Auckland, New Zealand working aboard the Air New Zealand sightseeing Flight 901 when it flew into Mount Erebus; he died in the crash 6


The Cassin 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: Juvant arva parentum
Motto Translation: The lands of my forefathers delight me.


  1. http://www.journaldesfemmes.com/nom-de-famille/nom/
  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. Charbonneau, André, and Doris Drolet-Dubé. A Register of Deceased Persons at Sea and on Grosse Île in 1847. The Minister of Canadian Heritage, 1997. ISBN: 0-660-198/1-1997E (p. 18)
  4. New Zealand Yesteryears Passenger Lists 1800 to 1900 (Retrieved 26th March 2019). Retrieved from http://www.yesteryears.co.nz/shipping/passlist.html
  5. The Political Graveyard: Alphabetical Name Index. (Retrieved 2015, October 9) . Retrieved from http://politicalgraveyard.com/alpha/index.html
  6. Mount Erebus, Memorial, Roll of Remembrance (Retrieved 2018, February 21st). Retrieved from http://www.erebus.co.nz/memorialandawards/rollofremembrance.aspx


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