When Brandt Armstrong was born on 8 December 1884, in Adams, Gage, Nebraska, United States, his father, Richard William Armstrong, was 30 and his mother, Ida Hannah Watts, was 21. He married Edith May Carson on 8 December 1908, in Lincoln, Lancaster, Nebraska, United States. They were the parents of at least 3 sons and 8 daughters. He lived in Castle Butte Township, Pennington, South Dakota, United States in 1930 and White River, Mellette, South Dakota, United States for about 5 years. He died on 3 September 1984, in Lincoln, Lancaster, Nebraska, United States, at the age of 99, and was buried in Lincoln Memorial Park, Lincoln, Lancaster, Nebraska, United States.
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.