Eleanor Elkins Widener was an American heiress, socialite, philanthropist, and adventuress best remembered for her donation to Harvard University of the Widener Library—a memorial to her elder son Harry Elkins Widener, who perished in the sinking of the RMS Titanic.
Widener later married Harvard professor Alexander Hamilton Rice Jr., a surgeon and explorer, then accompanied him on a number of expeditions, including one on which she "went further up the Amazon than any white woman had penetrated" and, purportedly, he was attacked by cannibals.