John Paul Stevens - Biographical information from the Oyez Project. - http://www.oyez.org/justices/justice/?justice=seat-six/john_paul_stevens
Documents for Illinois Justice - Transcriptions of original source documents referenced in the book Illinois Justice: The Scandal of 1969 and the Rise of John Paul Stevens by Kenneth A. Manaster. - http://press-pubs.uchicago.edu/manaster/