...ral Grant, a year older than little Clem, when he rode with his father through the Jackson campaign and the siege of Vicksburg. There were other sons who rode with commanding generals, as did young George Meade at Gettysburg, as did the sons of Generals Humphreys, Abercrombie, and Heintzelman, as did Win and Sam Sumner, both generals in their own right to-day, as did Francis Vinton Greene, who had to be loc...