author
1894–1964
A prolific early-20th-century novelist writing as Countess Barcynska, she also published under the better-known name Oliver Sandys. Her romantic and dramatic stories proved popular enough to reach the screen, including film versions of Rose o' the Sea and other works.

by Countess (Hélène) Barcynska
Born Marguerite Florence Laura Jarvis, she was a British writer, screenwriter, and actress who used several names during her career, including Countess Barcynska, Hélène Barcynska, and Oliver Sandys. Modern library and film sources connect the Countess Barcynska name to the same author, whose work circulated widely in popular fiction of the early 1900s.
She is especially remembered for writing romantic and emotionally driven novels, and some of her stories were adapted for film. Film databases and reference sources also note her work as an actress and screenwriter, showing how her career crossed between books and cinema.
She married the Welsh writer Caradoc Evans, and she remained active across several forms of writing over a long career. A reliable portrait image was not clearly available from the source pages reviewed, so no profile image is included here.