Martin Luther King Jr. was an American Baptist minister and activist who became the most visible spokesperson and leader in the Civil Rights Movement from 1955 until his assassination in 1968
The interviews were conducted in 1937 and this is years after the emancipation of slavery so these people interviewed are very old and may not remember everything. It could make it more reliable because it gave the interviewee time to reflect on everything that happened to them. ... The interviewer in Document C was black.
No one knows for sure. Some people believe there was not enough poison. Others believe he developed an immunity to poison by consuming small accounts of the poison to train his body.