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 dropped for some newer computer systems, and the interfiling of Mac and Mc names is an example, according to a 2006 book. There are in fact a number of options. In addition to sorting them under "Mac" and "Mc" respectively or choosing to sort them both under "Mc", it is known for Mc/Mac names to be placed in position before M. This topic has a complicated and disparate history, spread over different continents and relating to different areas of indexing, cataloguing and filing. The idea of a collating sequence itself has evolved, over time, and the "Mac and Mc" together