American President: James Polk
- Fact file and comprehensive biographical sketch based on PBS series.
- http://www.millercenter.virginia.edu/academic/americanpresident/polk

POTUS -- James Knox Polk
- Includes portrait, a short list of biographical facts, and related links.
- http://www.ipl.org/div/potus/jkpolk.html

New Book of Knowledge: James Polk
- An encyclopedic biography written for 3-8 grade students. Includes fact file and first inaugural address.
- http://ap.grolier.com/article?assetid=a2023630-h

Encyclopedia Americana: James Polk
- A detailed biography written for students. Includes Polk's inaugural addresses and a fact file.
- http://ap.grolier.com/article?assetid=0317430-00

James K. Polk
- Brief biography and portrait.
- http://xroads.virginia.edu/~CAP/smithson/polk.html