This is from the Bain collection of the USA Library of Congress. The Wikipedia article for her husband William had this, "Cornelia Martin, (1877-19 May 1961), the only daughter of a wealthy American banker, Bradley Martin at Grace Church, New York City, on 18 April 1893. His bride had just passed her sixteenth birthday..."
I cropped the Bain collection image and fixed the top and right sides with Photoshop.