Ernest George Henham was a Canadian-British author who wrote novels at the beginning of the 20th Century about Dartmoor and Devon, England. He also published literary works under the pseudonym John Trevena. Ernest G. Henham was born in 1870 and his writings include a series of novels based on Dartmoor, the moorland in Devon, England, where he lived much of his life. He created a pseudonym, John Trevena, for many of his books. It was probably no coincidence that the surname he chose was the original name for Tintagel, the legendary location of King Arthur's castle.