Plummer, Henry(1837–64) bandit; place of birth unknown. Nothing is known of his early years. He became the marshal of Nevada City, Calif. (1856), but turned to banditry after he murdered a man there. He organized a bandit group that terrorized the Washington Territory and southern Montana (1862–64). He masqueraded as the sheriff of Bannack, Mont., before being apprehended and hanged by a group of vigilantes.
The Cambridge Dictionary of American Biography, by John S. Bowman. Copyright © Cambridge University Press 1995. Reproduced with permission.