In 1909, he went on an extended tour of India to lecture at Bombay on economics and advise on economics teaching. As a result of his experiences he wrote Studies in Indian Economics.[2] He joined a territorial regiment in 1915, and was wounded as a stretcher bearer on the Western Front and invalided out of the armed forces in 1917.[3]
He married Joyce Holman in 1915, and they had two children.[4]
In 1938, he distributed 40 British passports to German Jews in Frankfurt, thus aiding their escape. The Chest of Surprises describes the Lees-Smith family history.[5]
Liberal Party
At the January 1910 general election, Lees-Smith was elected as a Liberal for the two-member Northampton constituency.[6] Unlike his fellow Northampton MP, Charles McCurdy, Lees-Smith allied with H. H. Asquith rather than David Lloyd George in the Liberal split during the First World War and, as a consequence, was not offered support by the Coalition in the 1918 general election. Rather than defend Northampton (which had been reduced to one member), he moved to the new Don Valley constituency but lost to a Coalition-supported National Democratic and Labour Party candidate. Indicating his estrangement from the Liberal Party, he fought as an "Independent Radical", even though he had been adopted by the local Liberal association.[citation needed] He was the member of Parliament who, in July 1917, read Siegfried Sassoon's declaration that the First World War had continued too long and should be ended.[7]
Labour Party
In 1919, Lees-Smith joined the Labour Party. He was picked as Labour candidate for Keighley[2] and won the seat in the 1922 general election,[8] profiting from a divided opposition. He was a noted speaker on banking and on reform of the House of Lords, about which he wrote several books including Second Chambers in Theory and Practice (1923). Unfortunately for Lees-Smith, the Conservatives did not stand a candidate in the 1923 general election and he was defeated by the Liberal candidate.[9] That defeat prevented him from being appointed as a Minister in the first Labour government.
Defeated again in 1931, Lees-Smith again won his seat back in 1935.[2][8] He served on the front bench but was not invited by Winston Churchill to join the Coalition government in 1940. As one of the most senior Labour figures not in office, the responsibilities of running the party were given to him. In his partisan role he strongly supported Churchill's conduct as war leader even if the war was not always running in the Allies' favour.[2]
He died at his home in London on 18 December 1941.[4]