McGeachie (mag eacaro), MacGaugh (mag eacada), MacGeagh (mag eacada). McCaughan an Anglicized form of the Old Gaelic MacEachain, son of Eachain. An Ulster surname, recorded in the Counties of Antrim, Down, Londonderry and Tyrone. Some families of Mc Caughen changed their name to MacCaughey, itself an Anglicized form of the Ulster name Mac Eachaidh, son of the Horseman or Horse Lord. The Scots names MacGeachie and MacGeachy are also derived from Mag Eochaidh. McGachy, McGeachy. An anglicized version of the Gaelic 'Mac Eochaidh'. A surname in both Ulster and Scotland. William McGaheye settled in York, Virginia, in 1653, and Alexander McGeachy,
Mac Maoláin presence of a collateral family in the province of Leinster. MacMullan and McMullen families are recorded in the Barony of Uíbh Echach (Clanna-Rory Irish Genealogical Foundation page 16), as Bishops of the Diocese of Connor and Down with the Bishops seat (the seat of MacMullen) identified as the townland of Cabra, parish of Clonduff, ancient territory of Mac Aenghusa (Magennis), Lords of Iveagh. Mac Maoláin Mac Maoláin Gaelic-Irish surname. Mac Maoláin was a surname borne by a number of unrelated families in Gaelic Ireland, anciently found in Breifne, Mide, Brega, Connacht and Ulster. Now anglicized MacMullan, MacMullen, MacMoylan, McMullen, McMullan,