Contributions by Howard Ball, Peter Edelman, Aram Goudsouzian, Robert E. Luckett Jr., Ellen B. Meacham, Stanley Nelson, and Charles L. Overby A Past That Won't Rest: Images of the Civil Rights Movement in Mississippi collects never-before-published photographs taken by Jim Lucas (1944-1980), an exceptional documentary photographer. His black-and-white images, taken during 1964 through 1968, dep…