Bibliography
http://www.redhotjazz.com/duke.html
http://en.wikipedia.org/wiki/Duke_Ellington
http://en.wikipedia.org/wiki/Jack_Dempsey
http://en.wikipedia.org/wiki/Babe_Ruth
http://en.wikipedia.org/wiki/Langston_Hughes
http://en.wikipedia.org/wiki/Edward_Hopper
http://en.wikipedia.org/wiki/Georgia_O%27Keeffe
http://en.wikipedia.org/wiki/Ernest_Hemingway
http://www.redhotjazz.com/duke.html
http://en.wikipedia.org/wiki/Duke_Ellington
http://en.wikipedia.org/wiki/Jack_Dempsey
http://en.wikipedia.org/wiki/Babe_Ruth
http://en.wikipedia.org/wiki/Langston_Hughes
http://en.wikipedia.org/wiki/Edward_Hopper
http://en.wikipedia.org/wiki/Georgia_O%27Keeffe
http://en.wikipedia.org/wiki/Ernest_Hemingway