Show ContentsGlennan History, Family Crest & Coats of Arms

The Glennan surname is an Anglicized form of Gaelic Mac Gille Fhinneain, a patronymic name created from a Gaelic personal name "Fionnán," from the Gaelic "fionn," meaning "white."

Early Origins of the Glennan family

The surname Glennan was first found in Ayrshire where their history vitally is enmeshed with that of the larger Logan Clan. The Glennan spelling of this name was first found in Druimdeurfait, in Ross-shire, where they were a branch of the Highland Logans, who lived along Loch Lochy. According to family lore, they descend from Gilliegorm, Chief of the northern Logans, who was killed battling the Clan Fraser. His pregnant wife taken captive by Lord Lovat. Her son, born humped back, was called Crotair MacGilliegorm, the "crooked-back son of Gilliegorm." Fearing future revenge on the Frasers by the boy, he was sent to a monastery at Beauly, where he became a monk. He was said to be an ardent follower of the Irish Saint Fhinan, and one of his children took the name Mac Gillie Fhinan, which eventually became MacLennan.

Early History of the Glennan family

This web page shows only a small excerpt of our Glennan research. Another 247 words (18 lines of text) covering the years 1204, 1296, 1329, 1555, 1606, 1609, 1746 and 1890 are included under the topic Early Glennan History in all our PDF Extended History products and printed products wherever possible.

Glennan Spelling Variations

In the Middles Ages scribes spelled names by their sound. Often a name was written under a different spelling variation each time it was recorded. Glennan has appeared as MacLennan, MacLenan, McLennan, McLennen and many more.

Early Notables of the Glennan family

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

Ireland Migration of the Glennan family to Ireland

Some of the Glennan family moved to Ireland, but this topic is not covered in this excerpt.
Another 61 words (4 lines of text) about their life in Ireland is included in all our PDF Extended History products and printed products wherever possible.


Australia Glennan migration to Australia +

Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:

Glennan Settlers in Australia in the 19th Century
  • Mr. Nicholas Glennan, English convict who was convicted in Lancaster, Lancashire, England for life, transported aboard the "Florentia" on 11th August 1830, arriving in New South Wales, Australia 1
  • Margaret Glennan, aged 18, a servant, who arrived in South Australia in 1854 aboard the ship "Confiance" 2

Contemporary Notables of the name Glennan (post 1700) +

  • Gordon R. Glennan, American Academy Award nominated sound engineer, known for his work on Friendly Persuasion (1956)
  • Thomas Keith Glennan (1905-1995), American first Administrator of the National Aeronautics and Space Administration (NASA) from 1958 to 1961
  • Michael Glennan, American Democratic Party politician, Postmaster at Norfolk, Virginia, 1885-89 3


The Glennan 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: Hoc majorum virtus
Motto Translation: This is the valour of my ancestors.


  1. Convict Records Voyages to Australia (Retrieved 11th October 2022). https://convictrecords.com.au/ships/florentia
  2. South Australian Register Wednesday 13th September 1854. (Retrieved 2010, November 5) Confiance 1854. Retrieved http://www.theshipslist.com/ships/australia/confiance1854.shtml
  3. The Political Graveyard: Alphabetical Name Index. (Retrieved 2015, November 16) . Retrieved from http://politicalgraveyard.com/alpha/index.html


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