MacNaughton also was a champion of woman suffrage, joining with others in a variety of organizations devoted to that cause. She contributed to the incorporation of the District Woman’s Suffrage Association in Washington, D.C., and in 1900, was elected President of that Association. The DWSA focused on raising the issue of woman suffrage in various venues and petitioning Congress for voting rights. MacNaughton was also active in the Federal Suffrage Association and in 1913, as Treasurer of the FSA, MacNaughton helped to raise money, circulate petitions, and generate interested in the cause of suffrage for women. MacNaughton also served as Vice President of the Federal Women’s Equality Association and she was a member of the National American Woman Suffrage Association. In these organizations, she worked closely and corresponded with other career women and suffragists of the time, including Clara Bewick Colby, Olympia Brown, and Belva Ann Lockwood.
