Armstrong (surname) Armstrong (surname) Armstrong is a surname of Scottish borders origin. It derives from a Middle English nickname which meant someone with strong arms. In Ireland the name was adopted as an Anglicization of two Gaelic names from Ulster: "Mac Thréinfhir" (meaning "son of the strong man") and "Ó Labhraidh Tréan" (meaning "strong O'Lavery"). Clan Armstrong is a clan from the border area between England and Scotland. The Scottish Armstrong is reputed to have been originally bestowed by "an antient (sic) king of Scotland" upon "Fairbairn, his armour-bearer" following an act of strength in battle. In the UK this surname is
Mac and Mc together A 2007 book in its tenth edition states that "most library catalogs" sort Mac and Mc names as if spelled M-a-c. Among the guides which generally recommend separating Mac and Mc so that names will be sorted as they are spelled are ISO 999, The Chicago Manual of Style, "Butcher's Copy-editing: The Cambridge Handbook for Editors, Copy-editors and Proofreaders", "The New York Times Manual of Style and Usage", and "The SBL Handbook of Style". 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