Blatch, Harriot Stanton, 1856-1940

Harriot Eaton Stanton Blatch (b. Jan. 20, 1856, Seneca Falls, NY–d. Nov. 20, 1940, Greenwich, CT) was the daughter of activists Henry Brewster Stanton and Elizabeth Cady Stanton. She graduated from Vassar College with a degree in mathematics in 1878. She married Harry Blatch and lived in Basingstoke, Hampshire. Her daughter, Nora Stanton Blatch Barney, was the first U.S. woman to earn a degree in civil engineering. While in England, Blatch conducted a statistical study of rural English working women's conditions and worked with English social reform groups. She also contributed to the book History of Woman Suffrage (1881) with her mother, Elizabeth Cady Stanton, Matilda Joslyn Gage, and Susan B. Anthony.

Blatch returned to the United States in 1902 and joined the leadership of the Women's Trade Union League. In 1907, she founded the Equality League of Self-Supporting Women (later renamed the Women's Political Union), to recruit working class women into the suffrage movement. She organized and led the 1910 New York suffrage parade. The Women's Political Union merged with Alice Paul and Lucy Burns' Congressional Union, eventually becoming the National Woman's Party in 1915.

After the passage of the Nineteenth Amendment in 1920, Blatch joined the National Woman's Party to fight for passage of the Equal Rights Amendment. She later worked on behalf of the League of Nations.