Wyndham Martyn

Wyndham Martyn was the pen name of William Henry Martin Hosken, a British author who was born in 1875 and later worked in the United States. Reference sources identify him as an English writer active in America, and note that he also used other names, including Croydon Heath and William Grenvil.

He began publishing fiction in American magazines in the early 1900s and went on to write novels, short stories, and screen-related work. Much of his output leaned toward thrillers and mystery fiction, with several books featuring Anthony Trent, a master criminal turned problem-solver who became his best-known recurring character.

Some sources also credit him with occasional science-fiction or supernatural elements, especially in later books such as Nightmare Castle and Stones of Enchantment. Reliable sources disagree on a few biographical details, including whether he was born in 1874 or 1875, so the exact year is not completely settled from the material available here.