Doris Margaret Wetherby Williams, que escribía como Margaret Erskine, nació 2 de mayo de 1901 nació en Kingston, Ontario, Canadá, pero creció en Devon, Inglaterra y murió en Londres el 9 de julio de 1984, ella es una escritora británica que escribía novelas de misterio con el mismo personaje el inspector Finch.
Fue miembro de PEN International y de la Crime Writers’ Association.
Escribio:
- And Being Dead (1938)
- The Limping Man (1939), also published as The Painted Mask (1972)
- The Voice of the House (1947), also published in England as Whispering House (1947)
- I Knew MacBean (1948)
- Give up the Ghost (1949)
- The Disappearing Bridegroom (1950)
- The Silver Ladies (1951)
- Look behind You, Lady (1952), also published in England as Death of Our Dear One (1952)
- Dead by Now (1953)
- Old Mrs. Ommanney Is Dead (1955), also published in England as Fatal Relations (1955)
- The Voice of Murder (1956)
- Sleep No More (1958)
- A Graveyard Plot (1959)
- The House of the Enchantress (1959)
- The Woman at Belguardo (1961)
- No. 9 Belmont Square (1963), also published in England as The House in Belmont Square (1963)
- Take a Dark Journey (1965)
- The Family at Tammerton (1966)
- Case with Three Husbands (1967)
- The Ewe Lamb (1968)
- The Case of Mary Fielding (1970)
- The Brood of Folly (1971)
- Don’t Look behind You (1972)
- Caravan of Night (1972)
- Besides the Wench Is Dead (1973)
- Harriet, Farewell (1975)
- The House in Hook Street (1977)
