What is XXX's spouse's name?
Eleanor Elkins Widener
Eleanor Elkins Widener, née Eleanore Elkins (later known as Eleanor Elkins Widener Rice or Mrs. Alexander Hamilton Rice; c.1862 -- July 13, 1937) 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 (along with her first husband, George Dunton Widener) perished in the sinking of the RMS Titanic.
George Dunton Widener