Merriman History, Family Crest & Coats of Arms
Merriman is an ancient Norman name, that would have been used in Britain soon after the Conquest of the island in 1066. This name was given to a person who was a person who was a mischievous child, or who liked to play tricks and make jokes, having derived from the Old French word "marmion," meaning "monkey."  
We include this first origin only because of the fact that two noted sources do so. We prefer another source which is just a qualified and we believe more likely.
"They appear to have been a branch of the Tessons. Ralph Tesson, who brought 120 knights of his dependence to the aid of Duke William at the battle of Val des Dunes in 1047, founded c. 1055 the Abbey of Fontenay, near Caen (Gall. Christ xi. 413). A charter of his was witnessed by William Marmion or Marmilon, probably his brother, c. 1070 (Ibid.), who, with his family possessed part of Fontenay. Robert Marmion, his son, Viscount of Fontenay-le-Tesson, passed into England with the Conqueror, and had extensive grants, his descendants a century later holding 17 fees in England and 5 in Normandy (Lib. Niger: Feoda Norm. Duchesne).  The Tessons of Normandy bore Gules a fesse Ermine; the Marmions Vair a fesse Gules." 
Early Origins of the Merriman family
The surname Merriman was first found in Warwickshire.
"They were, it is said, the hereditary Champions of Normandy; and after the Conquest, Robert de Marmion held the castle and manor of Tamworth that he received Tamworth from the Conqueror 'is verified,' says Dugdale, by an ancient window in this church, where the said King, 'being depicted in his Robes of State, and crowned, stretcheth forth his hand to him, holding a Charter therein, neer the Gate of a faire Castle.' in Warwickshire and Scrivelsby in Lincolnshire by the tenure of performing that office at the King's coronation; being bound 'to ride completely armed upon a barbed horse into Westminster Hall, and there to challenge the combat with whomsoever should dare to oppose the King's title to the crown.' His seat was at Tamworth Castle, the head of his Warwickshire barony." 
Robert Marmion (died 1218), the 6th Baron of Tamworth, was an English nobleman, an itinerant justice and was reputed to have been the King's Champion."The chiefs of this great house are stated to have been hereditary champions to the Dukes of Normandy, prior to the Conquest of England: certain it is, that Robert de Marmyon, Lord of Fonteney, Robert de Marmyon, Lord of Fonteney, obtained from his royal master, not long after the battle of Hastings, a grant of the manors of Tamworth, co. Warwick, and Scivelsby, co. Lincoln, the latter to be held 'by service of performing the office of champion at the King's Coronation.' "  
Early History of the Merriman family
This web page shows only a small excerpt of our Merriman research. Another 91 words (6 lines of text) covering the years 1066, 1425, 1489, 1603, 1639, 1449 and 1302 are included under the topic Early Merriman History in all our PDF Extended History products and printed products wherever possible.
Merriman Spelling Variations
Anglo-Norman names tend to be marked by an enormous number of spelling variations. This is largely due to the fact that Old and Middle English lacked any spelling rules when Norman French was introduced in the 11th century. The languages of the English courts at that time were French and Latin. These various languages mixed quite freely in the evolving social milieu. The final element of this mix is that medieval scribes spelled words according to their sounds rather than any definite rules, so a name was often spelled in as many different ways as the number of documents it appeared in. The name was spelled Marmion, Marmyon, Merryman, Merriman and others.
Early Notables of the Merriman family (pre 1700)
Outstanding amongst the family at this time was Baron Marmyon of Tamworth, Simon Marmion (c. 1425-1489), a French or Burgundian Early Netherlandish painter of panels and illuminated manuscript.
Shackerley [Shakerley, Shakerly, Schackerley] Marmion [Marmyon, Marmyun, or Mermion] (1603-1639), was...
In the United States, the name Merriman is the 4,441st most popular surname with an estimated 7,461 people with that name. 
Migration of the Merriman family to Ireland
Some of the Merriman family moved to Ireland, but this topic is not covered in this excerpt.
Because of the political and religious discontent in England, families began to migrate abroad in enormous numbers. Faced with persecution and starvation at home, the open frontiers and generally less oppressive social environment of the New World seemed tantalizing indeed to many English people. The trip was difficult, and not all made it unscathed, but many of those who did get to Canada and the United States made important contributions to the young nations in which they settled. Some of the first North American settlers with Merriman name or one of its variants:
Merriman Settlers in United States in the 17th Century
Merriman Settlers in United States in the 19th Century
Merriman Settlers in United States in the 20th Century
Emigration to Australia followed the First Fleets of convicts, tradespeople and early settlers. Early immigrants include:
Merriman Settlers in Australia in the 19th Century
The British first settled the British West Indies around 1604. They made many attempts but failed in some to establish settlements on the Islands including Saint Lucia and Grenada. By 1627 they had managed to establish settlements on St. Kitts (St. Christopher) and Barbados, but by 1641 the Spanish had moved in and destroyed some of these including those at Providence Island. The British continued to expand the settlements including setting the First Federation in the British West Indies by 1674; some of the islands include Barbados, Bermuda, Cayman Island, Turks and Caicos, Jamaica and Belize then known as British Honduras. By the 1960's many of the islands became independent after the West Indies Federation which existed from 1958 to 1962 failed due to internal political conflicts. After this a number of Eastern Caribbean islands formed a free association. 
Merriman Settlers in West Indies in the 17th Century