Hays, (John Coffee) “Jack”(1817–83) soldier, public official; born in Little Cedar Lick, Tenn. As a captain in the Texas Rangers, he reputedly introduced Samuel Colt's revolving pistol—the six-shooter—to the frontier. He moved to California (1849) and served as the sheriff of San Francisco. He also had large real estate and banking interests in Oakland.
The Cambridge Dictionary of American Biography, by John S. Bowman. Copyright © Cambridge University Press 1995. Reproduced with permission.