Posted By:
AlanDan,
It's a major undertaking. I've done a similar project some years ago with semi-pro basketball players. There are a few minor league address lists on line, but I think you're best bet is to google their names and hope for an article about them. You could also try contacting them thru their college alumni office or sports information office (if they attended). Also http://www.zabasearch.com
If you're willing to pay, there are companies that will provide addresses to you only if you have the players' complete name & birthdate. I've never used these companies, but this service does exist.
Good luck,
Alan