Owing to the birth of his two children, he became interested in education, especially early childhood education. He was not satisfied with the old traditional education and thought that progressive education also had some flaws, as a result, together with Dora, Russell founded the experimental Beacon Hill School in 1927. The school was run from a succession of different locations, including its original premises at the Russells' residence, Telegraph House, near Harting, West Sussex. During this time, he published On Education, Especially in Early Childhood. On 8 July 1930 Dora gave birth to her third child Harriet Ruth. After he left the school in 1932, Dora continued it until 1943.