American reformer, born in Cicero, NY, on the 24th of March 1826; married, in 1845, to Henry H. Gage of Cicero; became well known as an advocate of the abolition of slavery, and the extension of the suffrage to women. She edited the National Citizen from 1878 to 1881; and wrote Woman as an Inventor (1870); The History of Woman Suffrage (1886), in association with Susan B. Anthony and Elizabeth C. Stanton; and Woman, Church and State (1893).