The following facts would be most appropriate to include in a yearbook page about Jackie Robinson:
- Jackie Robinson was one of five children raised in poverty.
- Jackie Robinson's brother won a silver medal in the Olympics.
- Jackie Robinson helped lead the Dodgers to a World Series win.
These facts highlight important aspects of his background, family inspiration, and significant achievements in his athletic career, making them suitable for a yearbook page. While mentioning that he had to leave the University of California could be relevant, it is less impactful compared to the other points, which emphasize his accomplishments and influences.