So I bought a freehold house in Chelsea, No. 31 Sydney Street, where my two older children were born. But it did not seem good for children to live all the year in London, so in the spring of 1922 we acquired a house in Cornwall, at Porthcurno, about four miles from Land's End. From then until 1927 we divided our time about equally between London and Cornwall.
Source: The Autobiography of Bertrand Russell, v.2,chap.3: China
More info.: https://russell-j.com/beginner/AB24-020.HTM