Greason History, Family Crest & Coats of Arms
History reveals the roots of the Greason family name in the ancient Strathclyde people of the Scottish/English Borderlands. It is derived from Grier, a pet form of the given name Gregory, which means watchful.  
Early Origins of the Greason family
The surname Greason was first found in Dumfriesshire (Gaelic: Siorrachd Dhùn Phris), a Southern area, bordering on England that today forms part of the Dumfries and Galloway Council Area, where they held a family seat from very ancient times.
"The Griersons of Lag, Dumfriesshire, claim descent from Gilbert, second son of Malcolm, dominus de MacGregor, who is said to have died in 1374, but, says Col. Fergusson, 'there is no evidence or foundation for the story commonly current that this family was an offshoot of the Highland family of MacGregor.' " 
Early History of the Greason family
This web page shows only a small excerpt of our Greason research. Another 321 words (23 lines of text) covering the years 1250, 1411, 1411, 1429, 1451, 1232, 1502, 1526, 1557, 1671, 1704, 1547, 1590, 1564, 1657, 1733, 1408, 1608, 1623, 1654, 1655, 1677, 1760, 1709 and 1711 are included under the topic Early Greason History in all our PDF Extended History products and printed products wherever possible.
Greason Spelling Variations
Scribes in Medieval Scotland spelled names by sound rather than any set of rules, so an enormous number of spelling variations exist in names of that era. Greason has been spelled Grierson, Greson, Greyson, Grayson, Greirson and others.
Early Notables of the Greason family (pre 1700)
Notable amongst the family at this time was John Grierson or Grisson (died 1564?), a Scottish Dominican who is believed to have been from the family of Grierson of Lag in Dumfriesshire. 
Sir Robert Grierson of Lag (1657-1733), was 1st Baronet of Baronets of Lag & Rockhall, Dumfriesshire. He was "persecutor of the covenanters, was descended from an old Dumfriesshire family which claimed as an ancestor the highland chief Malcolm, lord of Macgregor, the friend and ally of Robert Bruce. The lands of Lag are said to have been bestowed on Gilbert Grierson by Henry, earl of...
Migration of the Greason family to Ireland
Some of the Greason family moved to Ireland, but this topic is not covered in this excerpt. More information about their life in Ireland is included in all our PDF Extended History products and printed products wherever possible.
The number of Strathclyde Clan families sailing for North America increased steadily as the persecution continued. In the colonies, they could find not only freedom from the iron hand of the English government, but land to settle on. The American War of Independence allowed many of these settlers to prove their independence, while some chose to go to Canada as United Empire Loyalists. Scots played essential roles in the forging of both great nations. Among them:
Greason Settlers in United States in the 18th Century
Greason Settlers in United States in the 19th Century
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 securior
Motto Translation: Safer by this.