She ran a school for girls in Ambleside and was well known to William Wordsworth and his family. Wordsworth described her, in a letter to Henry Crabb Robinson, 3 March 1822, as having ‘very good dispositions and I believe a good temper … but she was very deaf’, The Letters of William and Dorothy Wordsworth, 2nd edn, The Later Years: Part 1, 1821–1828, ed. Alan G. Hill (Oxford, 1978), p. 111. Miss Fletcher became a great friend of Mary Barker, with whom she lived in 1818 after debts forced her to give up her school. Miss Fletcher later moved to Birmingham.