One Hundred Years toward Suffrage: An Overview, Library of Congress
Timeline and Map of Woman Suffrage Legislation State by State 1838-1919, University of Washington
Timeline of the Women’s Suffrage Movement in the U.S., Teach a Girl to Lead, Center for American Women and Politics, Rutgers University
U.S. Women’s Suffrage Timeline 1648 to 2016, National Park Service
Woman Suffrage Timeline (1840-1920), National Women’s History Museum
Women’s Suffrage: Fact Sheet (including a women’s suffrage legislative timeline), Congressional Research Service