Carrie Chapman Catt, from "By Popular Demand: 'Votes for Women' Suffrage Pictures, 1850-1920" , an online exhibit and part of the American Memory Project, Library of Congress.
Also see her biographical sketch at the National Women's Hall of Fame and information on "Lobbying for Passage of the National Suffrage Amendment, 1917-1920," at the Women and Social Movements in the United States, 1775-1940 website.