Posted By:
Max WederFrank
I recommend that you check out the SABR biography project at http://bioproj.sabr.org/?m=5&s=192
It's an attempt by SABR (http://www.sabr.org) to have a short biography written about every major league player, as well as other people in the game.
Not all bios are done (by any means), but many that aren't done list authors who have been assigned. You can contact them for information they have already gathered, and I'm sure they'd be pleased to hear from you as to your information.
Max