Margaret Mary Julia Devlin (née Ashford; 3 April 1881 – 15 January 1972), known as Daisy Ashford, was an English writer who is most famous for writing The Young Visiters, a novella concerning the upper class society of late 19th century England, when she was just nine years old.

[4] She wrote several other stories; a play, A Woman's Crime; and one other short novel, The Hangman's Daughter, which she considered to be her best work.

Ashford bought a farm on the proceeds of The Young Visiters and once observed, “I like fresh air — and royalties.”[5] She did not write in later years, although in old age she did begin an autobiography which she later destroyed.

[1] Edmund Wilson referred to the novel This Side of Paradise by his friend F. Scott Fitzgerald as "a classic in a class with The Young Visiters",[7] a way of deeming the style childish or naïve.

Mathew Klickstein's graphic novel Daisy Goes to the Moon, based on his 2008 novella originally published by Portland-area upstart AtomSmashers, was illustrated by Rick Geary (creator of the inaugural San Diego Comic-Con logo and cartoonist for the likes of National Lampoon and Heavy Metal Magazine) and published by Fantagraphics in January 2025.