"The names Elizabeth Eckford and Hazel Bryan Massery may not be well known, but the image of them from September 1957 surely is: a black high school girl, dressed in white, walking stoically in front of Little Rock Central High School, and a white girl standing directly behind her, face twisted in hate, screaming racial epithets. This famous photograph captures the full anguish of desegregation -- in Little Rock and throughout the South -- and an...