MacCarthy MacCarthy MacCarthy (Irish: Mac Cárthaigh), also spelled Macarthy, McCarthy or McCarty, is a Gaelic Irish clan originating from Munster, an area they ruled during the Middle Ages. It was and continues to be divided into several great branches. The MacCarthy Reagh, MacCarthy of Muskerry, and MacCarthy of Duhallow dynasties were the three most important of these, after the central or MacCarthy Mór line. Their name, meaning "son of Cárthach" (whose name meant "loving"), is a common surname that originated in Ireland. As a surname, its prevalent spelling in the English language is McCarthy. Several variants are found, such as McCarty
Mac and Mc together Mac and Mc together A convention of sorting names with the Scottish and Irish patronymic prefixes Mac and Mc together persists in library science and archival practice. An example is from the Archives at the Yale University Beinecke Rare Book and Manuscript Library. It is also applied in areas such as voter registration, where Mac and Mc names may be sorted together in a listing. Technically this is a convention in collation. On the other hand, ASCII is a computer standard and its corresponding sorting is gradually replacing this exception to ordinary alphabetisation. Rules once used for filing have been