MacMaster History, Family Crest & Coats of Arms
The name MacMaster was first used centuries ago in the region that was once the Scottish kingdom of Dalriada. It was a name for a cleric. The Middle Gaelic word magisder is borrowed from the Latin magister. The Gaelic form of the surname is Mac a Mhaighstir, which means son of the Master. 
Early Origins of the MacMaster family
The surname MacMaster was first found in Ardgour (Scottish Gaelic: Ard Ghobhar, meaning Height of the goats), where they were anciently derived from members of the Clan MacInnes, who changed their name.
"This surname is now found mainly in the shires of Dumfries and Wigtown, but was also the name of a sept in Ardgour traditionally said to have been dispossessed by Macleans in the fifteenth century." 
Early History of the MacMaster family
This web page shows only a small excerpt of our MacMaster research. Another 72 words (5 lines of text) covering the years 1300, 1433, 1498, 1582 and are included under the topic Early MacMaster History in all our PDF Extended History products and printed products wherever possible.
MacMaster Spelling Variations
Spelling in the medieval era was a highly imprecise process. Translation, particularly from Gaelic to English, was little better. For these reasons, early Scottish names are rife with spelling variations. In various documents MacMaster has been spelled MacMaster, McMaster, M'Master, Mac a' Mhaighstir (Gaelic) and many more.
Early Notables of the MacMaster family (pre 1700)
More information is included under the topic Early MacMaster Notables in all our PDF Extended History products and printed products wherever possible.
Migration of the MacMaster family to Ireland
Some of the MacMaster family moved to Ireland, but this topic is not covered in this excerpt.
These settlers arrived in North America at a time when the east was burgeoning with prosperous colonies and the expanses of the west were just being opened up. The American War of Independence was also imminent. Some Scots stayed to fight for a new country, while others who remained loyal went north as United Empire Loyalists. The ancestors of all of them went on to rediscover their heritage in the 20th century through highland games and other patriotic Scottish events. The MacMaster were among these contributors, for they have been located in early North American records:
MacMaster Settlers in United States in the 18th Century
MacMaster Settlers in United States in the 19th Century
MacMaster Settlers in United States in the 20th Century
Some of the first settlers of this family name were:
MacMaster Settlers in Canada in the 19th Century
MacMaster Settlers in Canada in the 20th 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: MacAonghais a-rithist
Motto Translation: Again MacInnes