Pandita Ramabai
In 1887, Ramabai traveled to England to study and teach; she also converted to Christianity at this time. She subsequently traveled around the U.S. and Canada, giving lectures throughout North America raising attention to the situation of Indian women. Her most influential book was a critique of the status of women in Hinduism, called The High-Caste Hindu Woman.
An extract of Ramabai's "Famine Experiences" (1897) can be found here.