Glendon History, Family Crest & Coats of Arms
The Glendon surname was taken on from the place name Glendonwyne, a parish of Westerkirk, Dumfriesshire, on record since the 13th century.   The name literally means "one who came from Glendinning (glen of the fair hill)." 
Early Origins of the Glendon family
The surname Glendon was first found in Dumfriesshire. "Douglas (Baronage) states that a charter was granted by John Macgill of that Ilk (de eodem) to Adam de Glendonwyn of all his part of the lands and beronies of Clifton and Merbotel in the shire of Roxburgh prior to 1286." 
Continuing from this source: "In 1313 Sir Adam obtained a discharge of all bygone feu-duties from Archibald Douglas, lord of Galloway, and in 1398 John of Glendonwyne and Symoun of Glendonwyne were two of the 'borowis' for the earl of Douglas's bounds of the West March, and Symon of Glendonwyn was hostage for Archibald, Earl of Douglas, 1408." 
Early History of the Glendon family
This web page shows only a small excerpt of our Glendon research. Another 253 words (18 lines of text) covering the years 1250, 1408, 1450, 1467, 1451, 1239, 1504, 1587, 1599, 1667, 1720, 1798, 1408, 1387, 1388, 1401 and are included under the topic Early Glendon History in all our PDF Extended History products and printed products wherever possible.
Glendon Spelling Variations
Spelling variations of this family name include: Glendinning, Glendowyn, Glendowyne, Glendonyn, Glendonwyn, Glendening, Glendon, Glenden, Glendin, Glendining, Glendinnin, Glendyning, Glendounn, Clendenning, Clendinning and many more.
Early Notables of the Glendon family (pre 1700)
Notable amongst the family at this time was Matthew de Glendonwyn (d. 1408), late 14th and early 15th century bishop of Glasgow, elected to the see after the death of Cardinal Walter Wardlaw, his predecessor as bishop, elected sometime between Wardlaw's death in September and Matthew's first appearance as bishop-elect in December, consecrated some months after his election...
Migration of the Glendon family to Ireland
Some of the Glendon family moved to Ireland, but this topic is not covered in this excerpt.
Some of the first settlers of this family name were:
Glendon Settlers in Canada in the 19th Century
Glendon Settlers in Canada in the 20th Century
Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:
Glendon Settlers in Australia in the 19th Century