Hagerstown (Maryland), Longstreet at Halleck, General H. W., Federal commander in West; as a general; Grant and; after Shiloh; at Corinth; General-in-Chief; military adviser at Washington; reprimands Banks; censures Meade; orders Red River Expedition Hampton Roads, _Monitor_ and _Merrimac_ in Hancock, General W. S.; at Gettysburg; at Cold Harbor Hanover Court House (Virginia), Cooke pursues Stuart from Hardee, General W. J., evacuates Savannah Harney, General W. S., commands Department of the West Harper's Ferry, Federal forces abandon; Jackson at; strategic point; Virginia militia at; Johnston takes command at; Union forces on Potomac near; Johnston retires from; Banks at; troops gather at; Jackson and _Harriet Lane_, U. S. S. Harris, Colonel, Confederate leader Harrisburg (Pennsylvania), Banks at Harrison's Landing (Virginia), in Seven Days' battle; McClellan moves from _Hartford_, Federal man-of-war, at Ship Island; New Orleans forts; in Vicksburg campaign; Mobile Bay Haskins, Major, at Baton Rouge _Hatteras_, Alabama sinks Hatteras Island, taken Haxall's Landing (Virginia), Sheridan at Hayes, R. B., quoted Hazen, General W. B., takes Fort McAllister Helena (Arkansas), force joins Grant; Confederate attack repulsed Henry, Fort, Johnston at; blocks Federal advance; attack on; surrender; Federal march from; Grant ordered to remain at Hill, General A. P., at Beaver Dam Creek; at Gaines's Mill; Gettysburg Hill, General D. H. Hilton Head (South Carolina), fleet action off Holly Springs (Mississippi), Grant at Hood, General J. B., battle of Atlanta; number of troops; Nashville; attacks Schofield Hooker, General Joseph, failure in Virginia; Second Bull Run; supersedes Burnside; discipline; as a general; on deserters; joins Grant; at Wauhatchie; Lookout Mountain; Chancellors ville; Washington interferes with; Lincoln's letter to; resignation "Hornets' Nest" Howard, General O. O., Gettysburg campaign; at Chancellorsville; commands Army of the Tennessee Huger, General Benjamin, against Butler Hunter, General David, and Washington interference; Sigel replaced by; succeeded by Sheridan; success at Staunton; and Early Hurlbut, General S. A., at Shiloh Imboden, General J. D., at Bull Run; describes Jackson; Gettysburg Indiana, Morgan's Raid Indians, part in Civil War Ingraham, Commodore D. N., attacks blockade at Charleston "Iron Brigade," Meredith's Island Number Ten, Confederates hold; attack on; Pope's operations _Itasca_, Federal gunboat Iuka (Mississippi), battle