Cole was the son of British Army officer William Utting Cole, a major in the 3rd Dragoon Guards who died of cholera in India when his son was a child. His mother, Mary de Vere, was niece and heiress of Sir Stephen and Lady de Vere. Cole was a great-nephew of the Anglo-Irish poet Aubrey de Vere. Horace's paternal grandfather had made his fortune dealing in quinine, while his mother's family claimed kinship with the Earls of Oxford and the right to the position of Lord Great Chamberlain of England. A bout of diphtheria at the age of ten seriously affected his hearing for the remainder of his life. A few years later he was sent as a boarder to Eton College. During the Second Boer War, Cole was commissioned as a lieutenant in the Yorkshire Hussars, in which he quickly rose to the rank of acting captain. He was wounded by a dumdum bullet on 2 July 1900 and recuperated from shrapnel wounds at the Red Cross hospital in Kroonstad until September that year. He was subsequently invalided out of the army, donating the £1800 he received from cashing in his disability pension to the fund for war widows and orphans. On his return to England he went up to Trinity College, Cambridge in 1902, although he did not complete his degree. When his paternal grandmother, Jane, died in 1906 Cole inherited, inter alia, West Woodhay House in the parish of West Woodhay in southern Berkshire. He was unable to afford the upkeep and in 1912 sold the property to his uncle, Alfred Clayton Cole, who later became Governor of the Bank of England.
Pranks
As an undergraduate at Cambridge, Cole posed as the uncle of the Sultan of Zanzibar—who was visiting London at the time—to make a ceremonial visit to his own college, accompanied by his friend Adrian Stephen. Cole's best-known trick was the Dreadnought hoax on 7 February 1910, when he fooled the captain of the Royal Navy warship HMS Dreadnought into taking him and a group of his friends, including Virginia Woolf, for an official Abyssinian delegation. On occasion, Cole would wander the streets with a cow's udder poking through the fly of his trousers; once he judged he had caused optimum outrage he would cut off the offending protrusion with a pair of scissors. On honeymoon with his first wife in Italy, on April Fools' Day 1919, Cole dropped horse manure onto Venice's Piazza San Marco—a city with no horses that could be reached only by boat. Spending most of his later life in London, Cole executed a series of bold jokes and escapades principally aimed at deflating pompous figures of authority. His targets included members of parliament, city businessmen, and naval officers. On one occasion he directed a group of like-minded friends dressed as workmen as they dug a trench across Piccadilly. On another, he challenged an old schoolfriend from Eton, the newly elected Conservative Member of ParliamentOliver Locker-Lampson, to race him on a London street to the nearest corner, giving him a 10-yard head start. Cole had already slipped his gold watch into his friend’s pocket, and with Locker-Lampson running ahead at full speed Cole waited till they were passing a policeman and began to yell "Stop thief!" Locker-Lampson was promptly arrested and the watch found. After savouring the moment, Cole explained that it was all a joke, and both men were told to go on their way. Unfortunately, Cole then began waving his stick in a dangerous manner, as though conducting an imaginary band, and both men were arrested and taken into custody. No charge was brought against Locker-Lampson, but Cole was found guilty of a breach of the peace and fined £5. According to legend, Cole once hosted a party at which the guests discovered that they all had the word "bottom" in their surnames. According to another story he bought tickets for particular seats at a theatrical performance he considered pretentious and distributed them to eight bald men whose heads, painted with a single letter, spelled out the word "B-O-L-L-O-C-K-S", which was legible from the circle and boxes above. With his mane of hair and bristling moustache, in the 1920s Cole was sometimes mistaken for the Labourprime ministerRamsay MacDonald, causing dismay when Cole launched into a fierce public attack on Labour. His sister Annie married the future Prime Minister Neville Chamberlain, who was asked by Annie what he thought of Cole, and later commented "I was obliged to say what I did think, but fortunately it appeared that was her opinion too and she was not at all inclined to be proud of her brother's exploit... I think he must be a little mad." Cole has also been suspected of the Piltdown Man hoax.
Personal life
In 1918 Cole fell in love with the eighteen-year-old Irish heiress Denise Lynch. Owing to the fortune she stood to inherit, she was a ward of the Irish Chancery and prevented from marrying until the age of 21. Lynch was eventually released from the wardship and married Cole on 30September 1918 in Dublin. She subsequently gave birth to a daughter, Valerie, but the marriage failed in 1928 and he went into voluntary exile in France, after losing all his money in Canadian land speculation. In 1931 he married a former scullery maid and waitress at the Veeraswamy Indian restaurant, Mabel Winifred Mary Wright who in 1935 gave birth to a son, Tristan de Vere Cole, who was the natural son of the artist Augustus John. Cole died of a heart attack in Honfleur, France the following year and was buried at West Woodhay. Mabel later married the archaeologist Mortimer Wheeler, who afterwards divorced her on the grounds of her adultery with Lord Vivian.