MLB Jersey Numbers: the 80s — A Foot In The Box

Uni Watch - The best throwback uniform for each MLB team - ESPN

Red Sox All-Time Uniform Numbers

Uniform number (Major League Baseball) - Wikipedia

Best Player for All 101 Uniform Numbers in MLB History

Baseball Hall of Fame: Best player with every uniform number

Every uniform number ever, ranked by value

MLB History: Greatest Players to Wear Jersey Numbers 1-57, and Beyond, News, Scores, Highlights, Stats, and Rumors

McAuliffe-ology

Best Player for All 101 Uniform Numbers in MLB History