sentences:  Cassels narrowly held the seat at the 1923 general election, with majority of only 64 votes over Newbould, but at the 1924 general election he increased his majority to 3,403.However, he was defeated at the 1929 general election by Labour's Reginald Sorensen, who represented the constituency (with one brief interruption) until 1965.Cassels did not contest the Leyton seat again, but at the 1931 general election he was elected as MP for Camberwell North West, with a large majority.