Nap Lajoie
- Vital statistics, career highlights, biography with historical perspective, and commentary from Historic Baseball.
- http://www.historicbaseball.com/players/l/lajoie_nap.html

National Baseball Hall of Fame: Nap Lajoie
- Official site. Photograph, statistics, and biographical sketch detailing his credentials for the sport's highest award.
- http://www.baseballhalloffame.org/hofers_and_honorees/hofer_bios/lajoie_nap.htm

The Cobb-Lajoie Race of 1910
- Details of the closely contested batting championship including cooperation by opposing players, incorrect statistics, and personal likes and dislikes for the two players.
- http://wso.williams.edu/~jkossuth/cobb/lajoie.htm