It was Elizabeth Cady Stanton and Susan B. Anthony. They were the women who, along with a few other women, were in charge of the Seneca Falls Convention, where they wrote a deceleration that said "All men and women are created equal."
Elizabeth Cady Stanton was one of the original women who started the First Wave of Feminism.
Susan B. Anthony was such an intense suffragette that when the amendment was passed that gave women the right to vote, it was nicknamed the Anthony Amendment.
Hope this helps! Please let me know if I missed something :)