Margaret Oliphant Wilson Oliphant was a Scottish novelist and historical writer, who usually wrote as Mrs. Oliphant. Her fictional works cover "domestic realism, the historical novel and tales of the supernatural".

Margaret Pollock Sherwood was an American professor of English literature and author of novels, short stories, poetry, and essays.

Margaret Prescott Montague was an American short story writer, and novelist. Her middle name is sometimes attributed as Preston before changing to Prescott.

Margaret Sutton was the pen name of Rachel Beebe, an American author and teacher who is famous as being the author of the Judy Bolton Series of mystery books, 38 volumes published between 1932 and 1967. In addition to this series, she also wrote the Gail Gardner series, The Magic Maker series, Palace Wagon Family, Jemima, Daughter of Daniel Boone, as well as several other books.

Margaret O'Bannon Womack Vandercook was an American writer of children's literature.

Margaret Veley was a British author and poet. Born in Braintree, Essex to Augustus Charles Veley and Sophia Ludbey, she was second in a family of four daughters. She never married. She died in her early forties after a short illness "caused by a chill and ending in an affection of the throat."

Margaret Warner Morley was an American educator, biologist, and author of many children's books on nature and biology.

Margaret Widdemer was an American poet and novelist. She won the Pulitzer Prize in 1919 for her collection The Old Road to Paradise, shared with Carl Sandburg for Cornhuskers.

Margarita Spalding Gerry was an American writer of novels and short stories. She also served on the Board of Education in Washington, D.C.

Margery Louise Allingham was an English novelist from the "Golden Age of Detective Fiction", and considered one of its four "Queens of Crime", alongside Agatha Christie, Dorothy L. Sayers and Ngaio Marsh.