In 1913 she married Roger Cookson, a racing driver with the Bentley team, but after World War I she ran away again, this time from her husband, taking her two daughters with her.
During World War II she returned to Roger Cookson (to his immense surprise) and stayed with him until her death in 1963."
[3] As Sybil Cookson, she published the novel Echo... (1919) and co-edited the memoir The Boy with the Guns (1919) by Lieutenant George W. Taylor.
She published Tatlings (1922), illustrated by Fish,[4] a popular collection of self-penned epigrams that had previously appeared weekly in the Tatler.
After separating from her husband in 1938, Cookson moved with her two young daughters (one of whom was the actress Georgina Cookson [1918–2011]) into Bolton House, a red-brick Georgian building on three floors in Hampstead, London, with the painter Gluck (1895–1978), whom she had met through her friend Arthur Watts.