John Brown's Holy War http://www.pbs.org/wgbh/amex/brown/
Harper's Ferry National Park http://www.nps.gov/hafe/jbrown/oates.htm
John Brown and Harper's Ferry http://www.wvculture.org/history/jnobrown.html
America's Story: John Brown http://www.americaslibrary.gov/cgi-bin/page.cgi/jb/reform/brown_1
John Brown, from Civil War website http://www.civilwarhome.com/johnbrown.htm