Question: The Munro Ambulance Corps was started in August 1914 by Hector Munro, who was one of the directors of the Medico-Psychological Clinic in London, some of its noteworthy members were which popular British writer, who wrote about two dozen novels, short stories and poetry, and used the pseudonym of Mary Amelia St. Clair?
Sentence (from "May Sinclair"): May Sinclair was the pseudonym of Mary Amelia St. Clair (24 August 1863 – 14 November 1946), a popular British writer who wrote about two dozen novels, short stories and poetry.
Relevant evidence: Yes