Mary Louisa Molesworth (29 May 1839 – 20 January 1921) was an English writer of children's stories who wrote for children under the name of Mrs Molesworth. She was born in Rotterdam, a daughter of Charles Augustus Stewart, who later became a rich merchant in Manchester. She was educated in Great Britain and Switzerland: much of her girlhood was spent in Manchester. In 1861 Miss Stewart married Major R. Molesworth, nephew of Viscount Molesworth; they separated legally in 1879. Her first novels, for adult readers, Lover and Husband (1869) to Cicely (1874), appeared under the pseudonym of "Ennis Graham."
"Mary Louisa Molesworth typified late Victorian writing for girls. Aimed at girls too old for fairies and princesses but too young for Austen and the Brontės, books by Molesworth had their share of amusement, but they also had a good deal of moral instruction. The girls reading Molesworth would grow up to be mothers; thus, the books emphasized Victorian notions of duty and self-sacrifice."
Typical of the time, her young child characters often use a lisping style, and words may be mis-spelt to represent children's speech—"jography" for geography, for instance.
Mrs Molesworth is best known as a writer of books for the young, such as Tell Me a Story (1875), Carrots (1876), The Cuckoo Clock (1877), The Tapestry Room (1879), and A Christmas Child (1880). She has been called "the Jane Austen of the nursery," while The Carved Lions (1895) "is probably her masterpiece."
A new edition of The Cuckoo Clock was published in 1914.
She died in 1921 and is buried in Brompton Cemetery, London.
Siegfried Sassoon mentions The Palace in the Garden and Four Winds Farm as being 'almost' his favourite books by means of his 1928 autobiographical novel Memoirs of a Fox-Hunting Man.
Agatha Christie mentions The Tapestry Room and Four Winds Farm in her 1973 novel Postern of Fate, as childhood favourites of her detectives Tommy and Tuppence.