Jack London

http://www.jacklondons.net/shortbio.html

http://www.postalmuseum.si.edu/gold/gold2.html

http://www.school.eb.com/all/eb/article-9048828?query=Jack%20London&ct=null

http://www.school.eb.com/all/comptons/article-9275529?query=Jack%20London&ct=null