Margaret Elizabeth Sangster (1838-1912) was an American poet, author, and editor. She was popular in the late 19th and early 20th century. Sangster eventually became an editor at Harper’s Bazaar. Through her work she became acquainted with notable people of her age, including Mark Twain and Helen Keller. Other than Harper’s Bazaar, she contributed to Ladies’ Home Journal, Hearth and Home, and the Christian Intelligencer.