http://findarticles.com/p/articles/mi_hb4908/is_3_12/ai_n29163197/ (http://findarticles.com/p/articles/mi_hb4908/is_3_12/ai_n29163197/)
http://historicalbiographies.suite101.com/article.cfm/the_story_of_isabel_gunn (http://historicalbiographies.suite101.com/article.cfm/the_story_of_isabel_gunn)
http://freepages.genealogy.rootsweb.ancestry.com/~cockerline/red_river/1827census.html (http://freepages.genealogy.rootsweb.ancestry.com/~cockerline/red_river/1827census.html)