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.
Prominent women at equal rights conference at Woman's Party. L to R: Mrs. Agnes Morey, Brookline, Mass.; Miss Katherine Morey, Brookline, Mass. & State Chairman of the Woman's Party; Elsie Hill, Norwalk, Conn.; Mary Dean Powell, D.C.; Emma Wold, Portland, Oregon; Mabel Vernon, Wilmington, Del., 1922
Underwood & Underwood Studios, New York City/LOC cph.3c11667. Miss Mabel Vernon, National Executive Secretary of the National Woman's party, and Miss Mary Moss Wellborn, 1928