Covering General Edwin Vose Sumner's eventful career, this biography emphasizes his role in developing the mounted arm of the U.S. Army. Born in Boston in 1797 he abandoned a merchant's career and entered the U.S. Infantry in 1819. Transferring to the Dragoons in the 1830s, Sumner established the Cavalry School of Practice at Carlisle Barracks, Pennsylvania. Among his students was the future Confederate General Richard S. Ewell. Sumner served with distinction throughout the Mexican War and maintained a balance between the warring factions in Kansas in the mid-1850s (his efforts earning him...