Death
http://www.oxforddnb.com/view/article/27981
http://www.oxforddnb.com/view/article/27981
Career
Book sources - Wikipedia
https://en.wikipedia.org/wiki/Special:BookSources/0-7099-0040-6International Standard Book Number - Wikipedia
https://en.wikipedia.org/wiki/ISBN_(identifier)University of North Carolina Press - Wikipedia
https://en.wikipedia.org/wiki/University_of_North_Carolina_Presshttp://www.oxforddnb.com/view/article/27981
http://www.oxforddnb.com/view/article/27981