Major Hesketh Vernon Prichard, later Hesketh-Prichard(17 November 1876 – 14 June 1922) was an explorer, adventurer, big-game hunter and marksman who made a significant contribution to sniping practice within the British Army during the First World War. Concerned not only with improving the quality of marksmanship, the measures he introduced to counter the threat of German snipers were credited by a contemporary with saving the lives of over 3,500 Allied soldiers.
During his lifetime, he also explored territory never seen before by a European, played cricket at first-class level, including on overseas tours, wrote short stories and novels (one of which was turned into a Douglas Fairbanks film) and was a successful newspaper correspondent and travel writer. His many activities brought him into the highest social and professional circles. Like other turn of the century hunters such as Teddy Roosevelt, he was an active campaigner for animal welfare and succeeded in seeing legal measures introduced for their protection.
He wrote his first story "Tammer's Duel" in the summer of 1896, which his mother helped him refine, and was sold soon after to Pall Mall Magazine for a guinea. That year he abandoned a career in law and spent the summer travelling around southern Europe and North Africa. He spent the sea-time on the trip writing or planning plots. When back in London, he and his mother wrote together under the pseudonyms "H. Heron" and "E. Heron", and saw publication in several journals, including Cornhill Magazine. Hesketh-Prichard's circle of literary friends widened and he became acquainted with the likes of Arthur Conan Doyle and J. M. Barrie. In 1897 Barrie introduced him to the press baron Cyril Arthur Pearson, who suggested he write a series of ghost stories for his monthly Pearson's Magazine.Hesketh-Prichard and his mother created a series of stories around the character "Flaxman Low"', the first psychic detective of fiction, though they were disconcerted to find the tales promoted by Pearson as "real". The collected work was published as The Experiences of Flaxman Low in 1899.
In 1897, he and his mother worked on the plot of A Modern Mercenary, the stories of Captain Rallywood, a dashing diplomat in Germany. It was published by Smith and Elder the following year. He travelled to South America in February 1898, seeing the construction work for the Panama Canal, but returned after developing malaria while in the Caribbean.