Question: What is the date of death of Luci Baines Johnson's father?
Sentence (from "Lyndon B. Johnson"): Lyndon Baines Johnson (August 27, 1908January 22, 1973), often referred to by the initials LBJ, was an American politician who served as the 36th president of the United States from 1963 to 1969.
Relevant evidence: Yes