The son of a missionary and a Baptist minister, seventeen-year-old immigrant David George Ball was following his destiny to become a pastor. He had always dreamed of making a difference in people's lives. But when he met the then relatively unknown Martin Luther King Jr., the course of Ball's life changed forever.

In this memoir, A Marked Heart, Ball narrates his journey: beginning with growing up in wartime England; immigrating to the United States in 1954 to take the pastor's course at Chicago's Moody Bible Institute; attending Yale University as a scholarship student;...