Complex sentence: Marie Hicks (December 20,1923--19 April 2007) was an African American civil rights activist best known for leading thousands of pickets in 1965-1966 around the wall at Girard College.
Split into simpler sentences: Marie Hicks (December 20,1923--19 April 2007) was an African American activist during the Civil Rights Movement. She is best known for leading thousands of pickets in 1965-1966 around the wall at Girard College.