Temperley was born in Cambridge, the son of Ernest Temperley, a Fellow and Bursar of Queens' College, Cambridge. He was educated at Sherborne School and King's College, Cambridge, where he obtained a First in History. He became a lecturer at the University of Leeds in 1903, before taking a fellowship at Peterhouse, Cambridge, in 1905. Temperley's field was modern diplomatic history, and he was heavily involved as editor in the publication of the British Government's official version of the diplomatic history of the early twentieth century. He also wrote on George Canning and Eastern European history. During World War I, Temperley was commissioned into the Fife and Forfar Yeomanry, missing the Gallipoli landings due to illness. He was then seconded to the War Office, working on intelligence and policy in the Balkans. His History of Serbia was published in 1917. He attended the Paris Peace Conference of 1919 and later worked on an official history of it, on a scheme devised by George Louis Beer and Lord Eustace Percy. He was British representative on the Albanian boundary commission; and was an advisor in 1921 to Arthur Balfour at the League of Nations. In the compilation of the British Documents on the Origins of the War he collaborated with George Peabody Gooch,, another diplomatic historian and a member of parliament for the Liberal Party from 1906 to 1910. Gooch had spoken out against British policy in the Second Boer War, and was also a historian of Germany; his appointment was designed to give the project a credible independence. In the event, Temperley and Gooch were constrained financially, and in the use of documents subject to a 'fifty year rule' limitation on their release. To get their own way, they had to employ tactical resignation threats. Lillian Margery Penson was involved in both this and a later project on the Blue Books. In 1923 Temperley founded The Cambridge Historical Journal at Cambridge. The historian Herbert Butterfield was a student of Temperley. He commented later in life on how the ageing Temperley and Charles Webster, an equally aged historian, dominated the college Combination Room, "like booming giants, cumbersome and dangerous to crockery, bulging with warmth and good feeling, yet capable of overbearingness – terrible lions if you trod on their tales ".
Works
The Life of Canning
History of Serbia
Frederic the Great and Kaiser Joseph: An Episode of War and Diplomacy in the Eighteenth Century
