Matheson (surname) as the Gaelic "mathghamhuin" means "bear". Another Gaelic surname Anglicised "Matheson" is "Mac Matha". This Gaelic surname is derived from the patronymic form of a Gaelic form of "Matthew" (for example, the modern Scottish Gaelic "Mata" and "Matha" are cognates of the English "Matthew"). Matheson (surname) Matheson is a surname derived from the patronymic form of a short form of the English "Matthew". This English personal name is ultimately derived from the Hebrew "Mattathia", which means "gift of God". An early record form of the surname "Matheson" is "Mathyson", recorded in 1392; this recorded name literally means "son of "Mathi""—"Mathi"
Eolais mac Biobhsach manuscripts going back almost two hundred years. O'Donovan claimed the family name ( "descendent of Eolais") is still found anglicised as "Olus" or "Olis". two instances of the surname corrupted as "Oelase" and "Olase", are found in the Irish Fiants for Leinster. The surname must be very rare. Eolais mac Biobhsach Eolais "mac Biobhsach" (alias " "knowledge", anglicized "Wallis", "Olis" or "Olus" ) was a chieftain of 10th century Gaelic Ireland. He is noted as the first "full chieftain of Conmaicne Réin". His descendants, "the Muintir Eolais", expanded into the territory of present day south county Leitrim, and parts of