Most people who have heard of Fannie Lou Hamer (1917-1977) are aware of the impassioned testimony that this Mississippi sharecropper and civil rights activist delivered at the 1964 Democratic National Convention. Far fewer people are familiar with the speeches Hamer delivered at the 1968 and 1972 conventions, to say nothing of addresses she gave closer to home, or with Malcolm X in Harlem, or even at the founding of the National Women's Political...