Connected with the (Mac) Toschaches of Glentilt, Circa 1360, were the Ancient Scottish family called "Esson". The name is a development through Aysson to the present spellings of Easom, Eason and Easun. The name has a long history, Johem Eyson being outlawed in 1392 for taking part in the killing of the Sheriff of Angus. Whilst in 1681 John Easson was a member of the Scottish Parliament at St Andrews. The first name holder held a land charter at Fornochtis in Strathearn. The first recorded spelling of the family name is shown to be that of Aythe Filius Thome which was dated Circa 1630, in the "Baillie of Stratherne" during the reign of King David 11, of Scotland, 1329 - 1371. Surnames became necessary when governments introduced personal taxation. In England this was known as Poll Tax. Throughout the centuries, surnames in every country have continued to "develop" often leading to astonishing variants of the original spelling.