Can you help me sort out the Regimental Commander's and stafff for the 13th before and after the reorganization? I have the following

The field officers were Colonels L. Featherston, James A. McNeely, John E. Murry, and James C. Tappan but I am not sure of the order of their service;

Lieutenant Colonels A.R. Brown, R. A. Duncan, A. D. Grayson, and Peter V. Green; and Majors E. A. Howell and George B. Hunt