Muriel Lester (8 December 1883 – 11 February 1968) was born in Leytonstone (now in east London, but then a prosperous Essex suburb) and grew up at Loughton, where she was a member of the Union Church. She was a social reformer, pacifist and nonconformist. As a Baptist, she was baptized in 1898, at 15. In Loughton, she lived with her parents at The Grange, and afterwards acquired a wooden house, Rose Cottage, which she renamed Rachel Cottage, and used as a holiday home for East-end children.
Read about Muriel Lester in Wikipedia