Susan B. Anthony (1820-1906) - She was an American social reformer and women's rights activist who played a pivotal role in the women's suffrage movement.
Elizabeth Cady Stanton (1815-1902) - She was an American suffragist, social activist, abolitionist, and leading figure of the early women's rights movement.
Lucretia Mott (1793-1880) - She was a U.S. Quaker, abolitionist, women's rights activist, and social reformer. She had formed the idea of reforming the position of women in society when she was among the women excluded from the World Anti-Slavery Convention in 1840
(Here are 3 to pick from)