Question: What organization did Xernona Clayton work for who's first president was Martin Luther King Jr?
Sentence (from "Xernona Clayton"): During the Civil Rights Movement, she worked for the National Urban League and Southern Christian Leadership Conference, where she became involved in the work of Dr. Martin Luther King, Jr. Clayton then went into television, where she became the first African American from the southern United States to host a daily prime time talk show.
Relevant evidence: Yes