Miniature portrait of Philip Henry Sheridan. Watercolor on ivory, unsigned and undated. Oval portrait in a leather box. Philip Henry Sheridan (1831-1888) graduated from West Point in 1854. He quickly rose to prominence during the Civil War, after which he was sent west by President Grant to pacify the Plains Indians. He was eventually promoted to command the Division of the Missouri (all land between the Mississippi River and the Rocky Mountains), succeeding General William Tecumseh Sherman.