Yep - knew this too. Was made into a so so movie staring Lauren Bacall in the title role. She died old, alone and bitter with everyone trying to take advantage of her. I never knew Furman was part of the Duke Endowment until I took my son there to look at the campus and discovered they had just finished the "Duke Library".
Before this internet thingy we oldsters had to read books. Here's a good one I once read about the origins of Duke
"The Dukes of Durham"
Robert Durden
http://www.gothicbookshop.duke.edu/NASApp/store/Product?s=showproduct&isbn=082230743X
Thanks for that book suggestion. I'm a huge reader of business history....