A. L. Morton
(Arthur) Leslie Morton ( 4 July 1903–1987) was a prolific English Marxist historian. He worked as an independent scholar; from 1946 onwards he was the Chair of the Historians Group of the Communist Party of Great Britain (CPGB). He is best known for his classic A People's History of England, but he also did valuable work on William Blake and the Ranters, and for the study The English Utopia.
Morton was born in Suffolk, the son of a Yorkshire farmer.  He had two siblings , a sister Kathleen and a brother Max. He attended school in Bury until he was 16 and then at boarding school in Eastbourne. He then studied at the University of Cambridge from 1921 to 1924. While there he developed friends around the Labour group notably Alan Hutt who became a prominent typographer and Ivor Montagu who was to become a film director. He encountered socialist ideas, moved towards the communist group at the university that formed around Maurice Dobb.  
After college he taught at Steyning Grammar School in Sussex, where under his influence, most of the staff supported the General Strike in 1926. Dismissed as a consequence he taught for a year at A. S. Neill's progressive school, Summerhill at that time in Lyme Regis. He next moved to London to write and run a bookshop in Finsbury Circus. In 1929 he joined the Communist Party of Great Britain and along with his wife, Vivien, remained a member for the rest of his life. Vivien was the daughter of the veteran socialist Thomas A Jackson. 
Morton belonged to a group of London left-wing intellectuals of the 1930s, while working as a journalist for the Daily Worker. He served on the editorial board of the paper. His friends at that time included A. L. Lloyd and Maurice Cornforth; he assisted Victor B. Neuburg. In 1932 and 1933 he was involved in a debate with F. R. Leavis, in the pages of Scrutiny.
He participated in the Hunger marches of 1934.
During the early part of the Second World War, he was the full-time district organiser of the Communist Party’s East Anglia district and became chair of the district committee for many years. 
He was part of the group of leading communist historians invited to Moscow in 1954/5, with Christopher Hill, Eric Hobsbawm, and the Byzantine historian Robert Browning. Morton was a founding member of the William Morris Society in 1955. He participated in the People's March for Jobs in the early 1980s, a demonstration of 500 anti-unemployment protesters who marched to London from Northern England.
Morton died in 1987 at his home in The Old Chapel at Clare in Suffolk, aged 84.
A. L. Morton bequeathed his library to the university library of Rostock University in Rostock, Mecklenburg-Vorpommern, Germany (which was then in the German Democratic Republic and named Wilhelm-Pieck-University after the GDR's first and only president, Wilhelm Pieck). The collection comprises more than 3.900 volumes, including all foreign-language editions of the People's History of England, and many contain notations by A. L. Morton's own hand.
- A People's History Of England (1938)
- Language of Men (1945) essays
- The story of the English revolution (1949) Communist Party pamphlet
- The English Utopia (1952)
- The British Labour Movement, 1770-1920 (1956) with George Tate
- The Everlasting Gospel: A Study in the Sources of William Blake (1958)
- The Life and Ideas of Robert Owen (1962)
- The matter of Britain: essays in a living culture (1966)
- The World of the Ranters: Religious Radicalism in the English Revolution (1970)
- Political Writings of William Morris (1973) editor
- Freedom in Arms: A selection of Leveller writings (1975) editor
- Collected poems (1976)
- Three Works By William Morris (1977) editor
- History and the Imagination: Selected Writings of A.L. Morton (1990) edited by Margot Heinemann and Willie Thompson
- Rebels & Their Causes: Essays in Honour of A. L. Morton (1978) edited by Maurice Cornforth, Science & Society, Vol. 44, No. 4 (Winter, 1980/1981), pp. 501-503
- A. L. Morton's Library in the Catalogue of Rostock University Library
- New History Group. VOLUME 1 ISSUE 7 - THEORY History from Below.
- A L Morton John Simkin, Spartacus Educational September 1997,