(British) Army List - for 1814
Page 31 notes George James Reeves as a Lieutenant-Colonel, appointed on 1 January 1812, serving with the 27th Foot. He has seniority of 534 (in a list of 540).
Page 200 notes George James Reeves as a Lieutenant-Colonel in the 27th (or Inniskilling) Regiment of Foot. He was appointed to this Regimental position on 4 June 1813, having an Army appointment date of 1 January 1812.