Author: Dougal, William H. - United States. Army of the Potomac. Engineer Dept - Abbot, Henry L. Source:Library of Congress - Maps Usage Rights: Publication Date: 1862 View Map
Author: Grant, John - Campbell, Albert H. (Albert Henry) - Gilmer, Jeremy Francis - Hotchkiss, Jedediah - Barrows, A. S. Source:Library of Congress - Maps Usage Rights: Publication Date: 1863 View Map