Original: On 10 July 1917 he was elected member of the House of Commons for East Clare ( the constituency which he represented until 1959 ) in a by-election caused by the death of the previous incumbent Willie Redmond , brother of the Irish Party Leader John Redmond who had died fighting in World War I/O. In the 1918 general election he was elected both for that seat and Mayo East .
Simplified: On 10 July 1917 he was elected member of the British House of Commons for East Clare ( the constituency which he represented in Dail Eireann until 1959 ) in a by-election after MP Willie Redmond died fighting in World War I.