When Thomas Armstrong was born in 1687, in Haltwhistle, Northumberland, England, United Kingdom, his father, James Armstrong, was 12 and his mother, Jane Bridon, was 12. He married Elizabeth Carrick on 13 June 1716, in Haltwhistle, Northumberland, England, United Kingdom. They were the parents of at least 5 sons and 4 daughters.
English and Scottish (mainly Northumberland and the Scottish Borders): nickname from Middle English arm + strang, for someone who was ‘strong in the arm’.
Irish (Ulster): adopted as an English equivalent of Gaelic Ó Labhradha Tréan ‘strong O'Lavery’ or Mac Thréinfhir, literally ‘son of the strong man’.
History: This surname was brought to PA, NJ, and NH in the 18th century by several different families of northern Irish and northern English Protestants. One such was James Armstrong, who emigrated from Fermanagh to Cumberland County, PA, in 1745; another was John Armstrong (1720–95), who settled in Carlisle, PA, c. 1748.