D. R. Thorpe was born in 1943 and educated at Fettes College and Selwyn College, Cambridge. He is a Fellow of the Royal Historical Society and a regular contributor to the OXFORD DICTIONARY OF NATIONAL BIOGRAPHY. He has been an Archives Fellow at Churchill College, Cambridge and the Sir Alistair Horne Fellow at St Antony's College, Oxford. Since 1998 he has been based at Brasenose College, Oxford as a senior member. He has published five acclaimed biographical works: THE UNCROWNED PRIME MINISTERS: A STUDY OF SIR AUSTEN CHAMBERLAIN, LORD CURZON AND RAB BUTLER; the official lives of Selwyn Lloyd and Sir Alec Douglas-Home; and EDEN: THE LIFE AND TIMES OF ANTHONY EDEN, FIRST EARL OF AVON, 1897-1977. His biography of Harold Macmillan, SUPERMAC: THE LIFE OF HAROLD MACMILLAN won the biennial Marsh Biography Award, 2009-10. He knew Kenneth Rose for forty years and was appointed by him to edit his journals.