Show ContentsTrefethen History, Family Crest & Coats of Arms

The roots of the distinguished surname Trefethen lie in the southwestern county of Cornwall, a land steeped in legend and mystique. The name is derived from "Trevethan," the name of places in the parishes of St. Eval, Budock, and Gwennap, and is made up of two elements: the characteristic Cornish "tre," meaning "homestead, settlement," and "buthyn," meaning "meadow." It is likely that the progenitor of this name was a native of Trevethan.

Early Origins of the Trefethen family

The surname Trefethen was first found in Cornwall. The origins of the name make it likely that the name emerged independently in the parishes of Budock, St. Eval, and Gwennap during the Middle Ages. The Trefethen family held a family seat at Cornwall for many centuries, owing its prominence to its many distinguished members.

Early History of the Trefethen family

This web page shows only a small excerpt of our Trefethen research. Another 88 words (6 lines of text) covering the year 1679 is included under the topic Early Trefethen History in all our PDF Extended History products and printed products wherever possible.

Trefethen Spelling Variations

Spelling variations of this family name include: Trevethan, Trevethen, Trefethen, Trefethan, Trevathan and many more.

Early Notables of the Trefethen family

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


United States Trefethen migration to the United States +

Some of the first settlers of this family name were:

Trefethen Settlers in United States in the 17th Century
Trefethen Settlers in United States in the 19th Century
  • Benjamin Trefethen, who settled in San Francisco in 1851
  • Benjamin Trefethen, who landed in San Francisco, California in 1851 [1]

Contemporary Notables of the name Trefethen (post 1700) +

  • Eugene Trefethen (d. 1996), American co-founder with his wife Katie (died 2007) of Trefethen Vineyards Napa, California
  • Lloyd Nicholas Trefethen FRS (b. 1955), British professor of numerical analysis and head of the Numerical Analysis Group in the Mathematical Institute at the University of Oxford who co-developed the Embree–Trefethen constant


  1. 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)


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