http://lincoln.lib.niu.edu/nativeamerican.html
http://www.wisconsinhistory.org/teachers/lessons/secondary/blackhawk.asp
http://www.cowboy.net/native/sacnfox.html
http://www.freedomschools.k12.wi.us/STUDENT%20WORKS/BlackHawkWar/black_hawk_war.htm
http://en.wikisource.org/wiki/The_Story_of_Abraham_Lincoln/The_Black_Hawk_War