Question: For Us the Living: The Medgar Evers Story is a film based on a book by William Peters and an American civil rights activist who was the chairwoman of what?
Sentence (from "Myrlie Evers-Williams"): Myrlie Louise Evers–Williams (née Beasley; born March 17, 1933) is an American civil rights activist of the Civil Rights Movement and journalist who worked for over three decades to seek justice for the murder of her civil rights activist husband Medgar Evers in 1963.
Relevant evidence: Yes