Lilian Warren was born in London, England, UK. She worked as a secretary, when at 19, her first magazine story was accepted. She married and moved to South Africa, where she continued writing. In the 1950s, she started to write for Rich & Cowan, and later for Mills & Boon, under various pseudonyms: Rosalind Brett, Celine Conway, and Kathryn Blair. She passed away in 1961 in South Africa. Some of her books were published posthumuously.