Frederick Douglass

http://en.wikipedia.org/wiki/Frederick_Douglass
http://www.pbs.org/wgbh/aia/part4/4p1539.html
http://www.biography.com/people/frederick-douglass-9278324
http://www.frederickdouglass.org/douglass_bio.html
http://www.nytimes.com/learning/general/onthisday/bday/0207.html
http://memory.loc.gov/ammem/doughtml/timeline.html

Papers
http://memory.loc.gov/ammem/doughtml/doughome.html

Of Interest
http://www.slate.com/articles/news_and_politics/history/2015/07/fourth_of_july_revisiting_frederick_douglass_s_fiery_speech.html