[1] He left school at the age of 8 and went to work in the cotton industry, along with two of his brothers, at George Nadin & Nephews and soon rose to become manager on account of his diligence and growing shrewdness in business.[1] She died in 1836 having borne him eight children; Elkanah, Benjamin, Samuel, Joseph, John, Rebecca, Jane Ann and Mary Bowers.[4] In 1838, Manchester was incorporated as a municipal borough, and Armitage was elected to the first town council as a Liberal councillor representing Exchange Ward.[8][9] In 1857, Armitage stood for Parliament, unsuccessfully opposing William Nathaniel Massey for the seat of Salford and in 1866 he was appointed High Sheriff of Lancashire,[3][10] having represented the same county also as Deputy Lieutenant before.[8] Armitage died on 26 November 1876 at Hope Hall, Pendleton at the age of 82, his funeral procession was half a mile long and was made up of a hundred carriages.