Alan
Based on the causalities, POWs and reports that you found, it seems to confirm that McCray's Brigade, composed of the 45th, 46th and 47th Arkansas Mounted Infantry Regiments was already operating as a brigade under Shelby in early August 1864 at around the time of the Action at Ashley's Station, but we really can't confirm the presence of any of the individual regiments during the fight at Ashley's Station. Do you agree?