Answer
The 19th-century "triumvirate" of women's suffrage and feminism refers to Susan B. Anthony, Elizabeth Cady Stanton, and Lucy Stone. These three women were instrumental in the women's suffrage movement, and their work helped to secure women's right to vote in the United States. Anthony was a leading organizer of the suffrage movement, and she also served as president of the National Woman Suffrage Association (NWSA).