Born to an affluent family in 1836, Hylan B. Lyon claimed ancestors among Irish rebels, patriots of the American Revolution, and slaveowners in his native Kentucky. Biographer Dan Lee chronicles Lyon's military career, which began with service in the Third US Artillery after his graduation from West Point in 1856. Lyon first saw action in the Third Seminole War. Later stationed at Fort Yuma in California, he went on to fight in the Coeur d'Alene War...