Dorysoom History, Family Crest & Coats of Arms
The Dorysoom surname is a patronymic created from the personal name David.
Early Origins of the Dorysoom family
The surname Dorysoom was first found in Perth, Scotland, where, in 1219, Johnannes filius Davidis, a merchant in Perth, is mentioned. Some accounts suggest that around 1000 AD the Catti (Chattan) Clan, from whom the Davidson Clan descends, broke into two distinct factions, the MacKintosh and the MacPherson clans.
The Davidson Clan was part of the MacPherson element, but always considered itself to be the senior clan of the Chattan group. Records from the Ragman Rolls show Adami fiz Dauid of Forfarshire and Johan le fiz David of Berwickshire rendering homage to King Edward I of England in 1296. 
Bearers of Dorysoom were found on both sides of the Scottish-English border. The first estates of the Clan Dorysoom were at Invernahaven, a small estate in Badenoch, where they were said to be found from the mid 14th century.
Early History of the Dorysoom family
This web page shows only a small excerpt of our Dorysoom research. Another 268 words (19 lines of text) covering the years 1327, 1350, 1500, 1396, 1411, 1408, 1500, 1466, 1670, 1411, 1541, 1608, 1566, 1635, 1660, 1602, 1575, 1695, 1750, 1695 and are included under the topic Early Dorysoom History in all our PDF Extended History products and printed products wherever possible.
Dorysoom Spelling Variations
Spelling variations of this family name include: Davison, Davidson, Davisint, Davisyn, Debison, Dawysone, Dawyson, Davysone, Davyson, Davitson, Dawysown, Davisoun, Davisend, Davidsone, Davidson, Daveysone, Daveyson, Dauyson, Dawysume, Dauysum and many more.
Early Notables of the Dorysoom family (pre 1700)
Notable amongst bearers of this family name during their early history was Sir Robert Davidson, Chief of the Clan Davidson, who was killed at the Battle of Harlaw, in 1411.
William Davison (1541?-1608), was "Secretary of Queen Elizabeth, was, according to his own account, of Scottish descent. In June 1566 he went to Scotland as secretary to Henry Killegrew, the English ambassador, and congratulated Mary of Scotland on the birth of her son James. According to Sir James Melvill, he described himself at that early date as 'a favourer of the king's right and title to the crown of...
Migration of the Dorysoom family to Ireland
Some of the Dorysoom family moved to Ireland, but this topic is not covered in this excerpt.
Migration of the Dorysoom family
Some of the first settlers of this family name or some of its variants were: Charles Davidson, who was sent to Virginia in 1666; Elizabeth Davidson, who came to Maryland in 1667; Peter Davidson, who settled in Maryland in 1684.