(1870–1944) married (1903) Winifred Clouston. Clouston's father was a mental specialist in Edinburgh, of an Orcadian family; his mother was American. He was born in Cumberland, where his father was then medical superintendent of the Cumberland and Westmorland Asylum, educated at Merchiston and Magdalen College, Oxford, and called to the Bar in 1895. He lived in Orkney, where he took part in local politics and published several works on its history and antiquities. His first novel, Vandrad the Viking (1898), is a solemn historical adventure describing the coming of Christianity to Orkney. It was followed by the much more successful The Lunatic at Large (1899), which was had reached its sixth impression by 1902, a farcical and picaresque account of the adventures of a man who undertakes to look after a patient with brain fever. Clouston wrote many sequels to this book, including Count Bunker (1906), whose German hero speaks in broken English throughout. The Adventures of M. D'Haricot (1902), an early Victorian adventure, and Tales of King Fido (1909), a Ruritanian romance, are both in Clouston's facetious, slapstick style. He was a prolific writer and continued to publish novels until 1941.
From The Oxford Companion to Edwardian Fiction in Oxford Reference.