Introduction, Official Records, 1861 Index to the War Department United State Official Register 1861 War Department Cavalry Regiments | UNIT | | NAME | | RANK | | BORN | | APPOINTED FROM | | First | | Benjamin Beall | | Colonel | | Dist. Columbia | | Dist. Columbia | | Second | | Philip St. G. Cooke | | Colonel | | Virginia | | Virginia | | Third | | Marshall S. Howe | | Colonel | | Maine | | Maine | | Fourth | | John Sedgwick | | Colonel | | Connecticut | | Connecticut | | Fifth | | George H. Thomas | | Colonel (Brig. Gen. vols.) | | New York | | New York | | Sixth | | David Hunter | | Colonel (Maj. Gen. vols.) | | Dist. Columbia | | Illinois | |