Major Wm. S. McElwain, 110th Ohio Volunteers [From a photograph taken 1863.] Brevet Lieutenant-Colonel Aaron Spangler, 110th Ohio Volunteers [From a photograph taken 1863.] Major-General Horatio G. Wright [From a photograph taken 1865.] Major-General James B. Ricketts [From a photograph taken 1865.] Fanny Ricketts [From a photograph taken 1865.] Captain Wm. A. Hathaway, 110th Ohio Volunteers [From a photograph taken 1863.] Brevet Major Jonathan T. Rorer, 138th Pennsylvania Volunteers [From a photograph taken 1865.] General Philip H. Sheridan, U.S.A. [From a photograph taken 1885.] Battle-Field of Opequon, Va. [September 19, 1864. From the official map, 1873.] Brevet Major-General Rutherford B. Hayes [From a photograph taken from a painting.] Brevet Colonel Moses M. Granger, 122d Ohio Volunteers [From a photograph taken 1864.] Lieutenant-Colonel Aarom W. Ebright, 126th Ohio Volunteers [From a photograph taken 1864.] Battle-Field of Fisher's Hill, Va. [September, 1864. From the official map.] Major-General George Crook, U.S.A. [From a photograph taken 1888.] Major-General Geo. W. Getty [From a photograph taken 1864.] Brigadier-General Wm. H. Seward [From a photograph taken 1864.] Map of Cedar Creek Battle-Field, Va. [October 19, 1864.] Captain J. C. Ullery, 110th Ohio Volunteers [From a photograph taken 1865.] Brevet Colonel Otho H. Binkley, 110th Ohio Volunteers [From a photograph taken 1865.] Petersburg, Va., Fortifications, 1865 Brevet Colonel Clifton K. Prentiss, Sixth Maryland Volunteers [From a photograph taken 1865.] Lieutenant-Colonel Wm. N. Foster, 110th Ohio Volunteers [From a photograph taken 1863.] John W. Warrington, Private, 110th Ohio Volunteers [From a photograph taken 1899.] John B. Elam, Private, 110th Ohio Volunteers [From a photograph taken 1899.] Brevet Major-General J. Warren Keifer and Staff, 1865, Third Division, Sixth Army Corps J. Warren Keifer, Major-General of Volunteers [From a photograph taken 1898.] President McKinley and Major-Generals Keifer, Shafter, Lawton, and Wheeler [From a photograph taken on ship-deck at Savannah, Ga., December 17, 1898.] SLAVERY AND FOUR YEARS OF WAR CHAPTER I General Observations on Antietam, Fredericksburg, and Chancellorsville --Battles at Winchester under General Milroy--His Defeat and Retreat to Harper's Ferry--With Incidents The Confederate Army, under Lee, invaded Maryland in 1862, and after the drawn battle of Antietam, September 17th, it retired through the Shenandoah Valley and the mountain gaps behind the Rappahannock.