Marten Cumberland

Sydney Walter Martin "Marten" Cumberland (23 July 1892 – 1972) was an English journalist, novelist and editor. He also wrote under the pseudonym Kevin O'Hara. He specialised in the detective/mystery genre and created the character of Inspector Saturnin Dax, a French policeman.

During World War I, Cumberland served as a radio operator in the Merchant Navy. After the war, he worked successively for several newspapers and publishing houses as a writer. He also composed some detective stories for various magazines. He became a freelance journalist in 1924.

In 1923, Cumberland published his first novel, Loaded Dice, which he co-wrote with B.V. Shann. He married Kathleen Walsh in 1928. In his last years, he moved to Dublin, where he died in 1972.