Benjamin Henry Grierson was a music teacher, then a career officer in the United States Army. He was a cavalry general in the volunteer Union Army during the Civil War and later led troops in the American Old West. He is most noted for an 1863 expedition through Confederate-held territory that severed enemy communication lines between Vicksburg, Mississippi and Confederate commanders in the Eastern Theater. After the war he organized and led the Buffalo Soldiers of the 10th Cavalry Regiment from