For Honor, Glory, and Union: The Mexican and Civil War Letters of Brig. Gen. William Haines LytleCincinnati native William Haines Lytle volunteered for service in the Mexican War in late 1847. A pro states' rights Democrat with strong family ties to Kentucky, he nevertheless chose to protect and defend the Union upon the outbreak of the Civil War. Lytle's Mexican War service primarily consisted of garrison duty, but during the Civil War he became known for his courage under fire and his devotion to his troops. He saw combat at Carnifex Ferry and