Florence Adele Vanderbilt Twombly was an American socialite and heiress. She was a member of the prominent Vanderbilt family. She and her husband Hamilton McKown Twombly built Florham, a gilded age estate in Madison, New Jersey.

Margaret Louisa Vanderbilt Shepard was an American heiress and a member of the prominent Vanderbilt family. As a philanthropist, she funded the YMCA, helping create a hotel for guests of the organization. She was married to prominent New York City lawyer, banker, and newspaper editor Elliott Fitch Shepard.