Complex sentence: Sarah (Sallie) Holley (February 17,1818-January 12,1893) served as an educator to African Americans during the mid 1800s, becoming an avid member of the American Anti-Slavery Society.
Split into simpler sentences: Sarah (Sallie) Holley (February 17,1818-January 12,1893) was born in on February 17,1818. She served as an educator to African Americans during the mid 1800s, becoming an avid member of the American Anti-Slavery Society.