http://www.bookpage.com/9909bp/david_shannon.html

http://falcon.jmu.edu/~ramseyil/fox.htm

http://falcon.jmu.edu/~ramseyil/depaola.htm

http://www2.scholastic.com/teachers/authorsandbooks/authorstudies/authorhome.jhtml?authorID=87&collateralID=5282&displayName=Biography

http://www.cbcbooks.org/html/davidshannon.html