Background
He was born on December 18, 1827, in Hoosick, Rensselaer County, New York, the son of Alvin Armstrong.
He was born on December 18, 1827, in Hoosick, Rensselaer County, New York, the son of Alvin Armstrong.
He attended the common schools.
In 1843, he began to work as a clerk in Penn Yan. In 1847, he moved to Wayne County, and later to Albany. There he engaged in the wholesale of produce, and entered politics as a Democrat.
At the New York state election, 1865, he ran for Canal Commissioner, but was defeated by Republican Robert C. Dorn.
Armstrong was Clerk of the New York State Assembly from January 1, 1868, to January 5, 1869, officiating in the 91st New York State Legislature. And again from January 4, 1870, to January 2, 1872, officiating in the 93rd and 94th New York State Legislatures.
In 1871, he supervised the publication of A Compilation of Cases of Breaches of Privilege of the House in the Assembly of the State of New York (251 pg).
He was a member of the New York State Assembly (Albany Company, 3rd Doctorate) in 1858.