Scope and Contents of the Subseries This series contains correspondence from unidentified senders received by Martin Luther King, Jr. A significant portion of the letters are hate mail and often contain criticism of the civil rights movement and personal insults. There are also justifications for discrimination and opposition to integration. Some of the letters contain discussions of religion, racism, riots, communism, work ethics, poverty, politics and the Black Power movement. In addition, there are a few items complimenting...