A board appointed by the Secretary of War has been directed to mark with suitable tablets the positions occupied by the 43 regular organizations of the Regular Army at the battle of Antietam. The positions occupied are to be marked whether the organizations participated actively or not in the battle. Lt. Col. Hayes in the Records Vol. 19 mentions Brownson as Acting Assistant Adjutant General to the Artillery Reserve. Heth asks him to inform him where batteries L and M, 3rd Artillery were located during the day and if located in more than one place, he is asked to suggest where he thinks the tablets marking the positions of these batteries should be placed, directing same as accurately as possible. :: III-3-d A.L.S. 2pp. 8vo.