Sources for Biography Edward Emerson Barnard

http://en.wikipedia.org/wiki/Edward_Emerson_Barnard

www.answers.com/topic/edward-emerson-barnard

http://www.daviddarling.info/encyclopedia/B/Barnard.html

www.encyclopedia.com/topic/Edward_Emerson_Barnard.aspx

http://www.vanderbilt.edu/News/register/Oct29_01/story5.html