http://www.summ.org/tj/hi-report/timeline.htm
http://www.digitalhistory.uh.edu/database/article_display.cfm?HHID=189
http://future.state.gov/when/timeline/1866_timeline/annex_hawaii.html
http://www.archives.gov/education/lessons/hawaii-petition/
http://www.hawaiiforvisitors.com/about/annexation.htm