Marguerite Florence Laura Jarvis,[citation needed] also known under the pseudonym of Oliver Sandys (7 October 1886 – 10 March 1964) was a British writer, screenwriter, and actress.
Daughter of an officer of the Indian Medical Corps, Marguerite was born in Henzada, Burma, then part of British India.
[1] She married in 1911 the Polish-born journalist Armiger Barczinsky, also known as Barclay (1861?-1930), who greatly encouraged her to write,[2] and had a son, Nicholas Barczinsky-Sandys (born 1916).
[4] After the death of Caradoc, Marguerite returned to London briefly, and then went to Penrhyn-coch, then to Panteidal Lodge, with Captain Hewitt, which she describes in her book The Miracle Stone of Wales.
The summer of 1911 marks the date of the first novel by Marguerite, signed as Oliver Sandys, The Woman in the Firelight, concluded a few weeks after the wedding.
In early July 1964 her posthumous novel, as Oliver Sandys, Madame Adastra published, set largely in the world of hospitals and nursing.