In addition to her legal work, Hall became increasingly involved in suffrage and social reform activities. In March 1885, Hall helped to find the Hartford Woman Suffrage Club and served as its Vice President. She also attended the International Council of Women to celebrate the first Woman's Rights Convention, where the International Woman's Bar Association was founded. Hall was then elected Assistant Secretary at the Connecticut Woman's Suffrage Association convention. In 1895, Hall became a member of the State Board of Charities and was responsible for investigating and regulating the charitable institutions through the state. She also testified before the State Judiciary Committee in 1905 against a bill that would prohibit girls from selling newspapers.