Hickok was born and raised on a farm in rural Illinois. He went west at age 18 as a fugitive from justice, first working as a stagecoach driver, then as a lawman in the frontier territories of Kansas and Nebraska. He fought (and spied) for the Union Army during the American Civil War and gained publicity after the war as a scout, marksman, actor and professional gambler. Hickok was involved in several notable shootouts.