Frank M. Canton (born Josiah Horner, September 15, 1849 – September 27, 1927) was an American Old West fugitive who had a career as a deputy U.S. marshal under an assumed name. Although an ex-sheriff stock detective in Wyoming, Canton and his associates were accused of operating more by assassination than the law. Extrajudicial measures such as the lynching of Ellen Watson inflamed public opinion against the long-established big ranchers Canton worked for, and to re-establish control over grazing they funded an all-out assault on those small operators considered to be rustlers. Canton directed Frank Wolcott's imported gunmen in their planned vigilante campaign, known as the Johnson County War, which was quickly ended by a local posse. Finding himself a marked man in Wyoming, Canton conside