We need to get back Paul McCartney's ball. He died without getting his ball back from this man: http://uk.imdb.com/name/nm0894710/ who selfishly kept it in 1964. Unfortunately, this man is dead. He may have given it to his son (name unknown) or daughter (Sarah).
We need to get this ball and present it to Shoeless Bill, before it is too late for him to reclaim Paul's ball.
Pic related, it's Paul McCartney begging for his ball back.