Humphrey Richard "Hugh" Slater (1906-1958) was a British author and painter.
Brought up in South Africa, he attended the Slade School of Art in the mid-1920s, and exhibited an abstract painting at Lucy Wertheim's gallery, a leading London gallery. The painter William Coldstream considered him "a very gifted and rare artist".
Getting involved in anti-Nazi politics in Berlin in the early 1930s, he joined the Communist Party and in 1936 he went to fight in the Spanish Civil War as Chief of Operations for the International Brigades.
Back in England, in 1940 he helped Tom Wintringham set up the Osterley Park training centre which taught guerilla warfare and street fighting for the Home Guard, before being drafted into the regular army as a private. The public outcry led to questions being asked in Parliament and an article in the US magazine TIME.
- 1941: Home Guard for Victory! Gollancz
- 1946: The Heretics
- 1948: The Conspirator
- 1955: Who rules Russia? Batchworth Press (London)
- 1958: The Channel Tunnel A. Wingate (London)
- 2009: Los herejes, Spanish translation of The Herectics; Galaxia Gutenberg / Círculo de Lectores (Barcelona). Translated by Montserrat Gurguí and Hernán Sabaté.
- 2009: El conspirador, Spanish translation of The Conspirator; Galaxia Gutenberg / Círculo de Lectores (Barcelona). Translated by M. Gurguí and H. Sabaté.
- The National Archives
- Buckman, David "Where are the Hirsts of the 1930s now?" The Independent November 13, 1998
- House of Commons Debate April 1, 1941 vol 370 cc838-9 Hansard transcriptions of parliamentary debate
- "Wintringham Out" TIME. Monday, June 30, 1941
- Orwell, Sonia and Angus, Ian (eds.)The Collected Essays, Journalism and Letters of George Orwell Volume 2: My Country Right or Left, 16 (London, Penguin)
- Orwell, Sonia and Angus, Ian (eds.). The Collected Essays, Journalism and Letters of George Orwell Volume 4: In Front of Your Nose (1945-1950) (Penguin)