Conversation so far:
How did Walter O'Malley die?
Walter O'Malley died of congestive heart failure on August 9, 1979
Where did Walter O'Malley die?
Walter O'Malley died at Methodist Hospital in Rochester
Where was Walter O'Malley buried?
Walter O'Malley was buried at Holy Cross Cemetery in Culver City, California

Question: Did he have any children?
Self-contained rewrite: Did Walter O'Malley have any children?