found: Going the distance, c2000:t.p. (Ken Norton) p. 6 (b. Kenneth Howard Florence, 8/9/43; name changed to Norton when mother married, 1947) p. 69 (became North American Boxing Federation heavyweight champion, 1973)
found: New York times (online), viewed Sept. 19, 2013(in obituary published Sept. 18: Ken Norton; Kenneth Howard Norton; b. Aug. 9, 1943, Jacksonville, Ill.; d. Wednesday [Sept. 18, 2013], Henderson, Nev., aged 70; fought three memorable fights with Muhammad Ali, breaking his jaw in winning their first bout, then losing twice; went on to become the World Boxing Council heavyweight champion)
found: African American National Biography, accessed March 25, 2015, via Oxford African American Studies Center database:(Norton, Kenneth (Ken) Howard; boxer, actor, marine, entrepreneur; born 09 August 1943 in Jacksonville, Illinois; United States; star in football, baseball, track and field in high school; had a football scholarship from Northeast Missouri State University; enlisted in U.S. Marine Corps (1964) and joined the boxing team and the squad winning All-Marine Championship three years in a row; became a professional boxer, trained by Eddie Futch, Southern California, (1967); won 17 fights in a row before being matched at San Diego Sports Arena (1973); was a celebrity during mid-1970s, quit sport in 1981; made TV appearances as actor, broadcaster; sports agent; formed Ken Norton Personal Management Co. (1983); opened Ken Norton's Restaurant & Night club, in Irvine, California (1999); became a broadcaster for Showtime cable TV network; died 18 September 2013 in Henderson, Nevada, outside of Las Vegas)