Looking for MLB stars who played in the Negro Leagues (from their time there)

[Topnotchsy]

Hey all,

I'm looking for items (photos, signed items, programs) of MLB stars (Mays, Aaron, Banks, Campanella, Robinson, Paige, Newcombe etc) who began their careers in the Negro Leagues, and later became MLB stars.

I'm looking for items from before they made the Majors, though it does not have to be Negro League related (items from Puerto Rico baseball etc are also of interest.)

Thanks!