Mabel Vernon was an American suffragist, pacifist, and a national leader in the United States suffrage movement. She was a Quaker and a member of the National American Woman Suffrage Association. Vernon was inspired by the methods used by the Women's Social and Political Union in Britain. Vernon was one of the principal members of the Congressional Union for Women Suffrage (CUWS) alongside Olympia Brown, Inez Milholland, Crystal Eastman, Lucy Burns, and Alice Paul, and helped to organize the Silent Sentinels protests that involved daily picketing of Woodrow Wilson's White House.

Doris Stevens was an American suffragist, woman's legal rights advocate and author. She was the first female member of the American Institute of International Law and first chair of the Inter-American Commission of Women.