(1869–1942) Helen was a prominent figure in the Woman's National Republican Association and the General Federation of Womens' Clubs. Helen was a suffrage leader and founder and president of the Women's Forum of New York for 30 years. She was the protege of J. Ellen Foster. Foster founded the Woman's National Republican Association (WRNA) around 1888 and served as the organizations first president. While Foster focused on supporting Republican candidates, Helen supervised advocating for women working in factories and shops.

Helen obtained a law degree from the Washington College of Law in 1902. In 1910 Foster died and Boswell became president of the Woman's National Republican Association. She took over the responsibilities of campaigning for Republican candidates. Additionally she served as a delegate to the Republican National Conventions from 1920 through 1932.

Helen was a member of the National American Woman Suffrage Association. She was included in the publication Woman's Who's Who of America, 1914–15 and the 1922 publication The History of Woman Suffrage.