sentences:  After the retreat commenced, he remained at his post, and gave himself up a prisoner, rather than be separated from those who so much needed his attention.The death of the brave Colonel Slocum, left the Regiment in the command of Captain Frank Wheaton, of the United States Army, then acting Lieutenant-Colonel, to the Colonelcy of which he was subsequently promoted.Captain Viall, on the fall of Major Ballou, assumed the duty of a field officer, and was afterward promoted to Major of the Regiment.