Larry Walker - Wikipedia
Gary Sheffield Cards Trading Card Database
The All-MLB Team Project: Re-Evaluating Baseball's Best From 2000-Now – Part II: 2000-2005 - WIBW 580
MLB Home Run Records by Age
Mike Piazza Stats & Facts - This Day In Baseball
Gary Sheffield - Wikipedia
Gary Sheffield Cards Trading Card Database
Little League World Series players who played in a Major League World Series
Home Run Records by Teams During A Game
2008 Upper Deck Baseball Card Checklist
1996 Score Florida Marlins Team Set
Gary Sheffield Stats & Scouting Report — College Baseball, MLB Draft, Prospects - Baseball America
Home Run Derby - Wikipedia